./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW --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 26c43b0aadda992ac661443360ccdcdee8e428835f1c1ebcc9d46e3a7ce26fc5 --- 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-4e7fbc6 [2022-11-23 15:22:25,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:22:25,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:22:25,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:22:25,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:22:25,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:22:25,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:22:25,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:22:25,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:22:25,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:22:25,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:22:25,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:22:25,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:22:25,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:22:25,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:22:25,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:22:25,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:22:25,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:22:25,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:22:25,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:22:25,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:22:25,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:22:25,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:22:25,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:22:25,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:22:25,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:22:25,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:22:25,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:22:25,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:22:25,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:22:25,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:22:25,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:22:25,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:22:25,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:22:25,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:22:25,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:22:25,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:22:25,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:22:25,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:22:25,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:22:25,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:22:25,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-23 15:22:25,669 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:22:25,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:22:25,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:22:25,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:22:25,674 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:22:25,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:22:25,675 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:22:25,675 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:22:25,676 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:22:25,677 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:22:25,677 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:22:25,678 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:22:25,679 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:22:25,679 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:22:25,680 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:22:25,680 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:22:25,680 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:22:25,680 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:22:25,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 15:22:25,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 15:22:25,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:22:25,682 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:22:25,683 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:22:25,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:22:25,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:22:25,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:22:25,684 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 15:22:25,684 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 15:22:25,685 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 15:22:25,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:22:25,686 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:22:25,686 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:22:25,686 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:22:25,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:22:25,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:22:25,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:22:25,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:22:25,688 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:22:25,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:22:25,689 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:22:25,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:22:25,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:22:25,690 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_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c43b0aadda992ac661443360ccdcdee8e428835f1c1ebcc9d46e3a7ce26fc5 [2022-11-23 15:22:25,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:22:25,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:22:25,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:22:25,996 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:22:25,997 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:22:25,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i [2022-11-23 15:22:29,104 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:22:29,434 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:22:29,435 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i [2022-11-23 15:22:29,459 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/data/2127056cf/3943c3b8eb674629976fec398c9ac11a/FLAG0c3c826c3 [2022-11-23 15:22:29,474 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/data/2127056cf/3943c3b8eb674629976fec398c9ac11a [2022-11-23 15:22:29,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:22:29,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:22:29,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:22:29,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:22:29,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:22:29,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:29" (1/1) ... [2022-11-23 15:22:29,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1b4a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:29, skipping insertion in model container [2022-11-23 15:22:29,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:29" (1/1) ... [2022-11-23 15:22:29,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:22:29,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:22:29,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:22:30,002 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) [2022-11-23 15:22:30,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@65156423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:30, skipping insertion in model container [2022-11-23 15:22:30,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:22:30,003 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-23 15:22:30,005 INFO L158 Benchmark]: Toolchain (without parser) took 522.73ms. Allocated memory is still 159.4MB. Free memory was 112.5MB in the beginning and 98.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 15:22:30,005 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 159.4MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:22:30,006 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.88ms. Allocated memory is still 159.4MB. Free memory was 112.5MB in the beginning and 98.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 15:22:30,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 159.4MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 516.88ms. Allocated memory is still 159.4MB. Free memory was 112.5MB in the beginning and 98.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW --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 26c43b0aadda992ac661443360ccdcdee8e428835f1c1ebcc9d46e3a7ce26fc5 --- 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-4e7fbc6 [2022-11-23 15:22:32,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:22:32,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:22:32,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:22:32,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:22:32,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:22:32,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:22:32,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:22:32,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:22:32,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:22:32,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:22:32,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:22:32,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:22:32,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:22:32,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:22:32,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:22:32,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:22:32,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:22:32,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:22:32,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:22:32,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:22:32,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:22:32,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:22:32,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:22:32,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:22:32,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:22:32,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:22:32,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:22:32,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:22:32,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:22:32,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:22:32,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:22:32,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:22:32,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:22:32,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:22:32,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:22:32,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:22:32,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:22:32,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:22:32,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:22:32,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:22:32,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-23 15:22:32,391 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:22:32,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:22:32,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:22:32,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:22:32,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:22:32,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:22:32,397 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:22:32,397 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:22:32,398 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:22:32,398 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:22:32,399 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:22:32,399 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:22:32,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 15:22:32,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 15:22:32,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:22:32,401 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:22:32,401 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:22:32,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:22:32,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:22:32,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:22:32,402 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 15:22:32,402 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 15:22:32,402 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 15:22:32,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:22:32,402 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:22:32,403 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:22:32,403 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:22:32,403 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:22:32,403 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:22:32,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:22:32,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:22:32,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:22:32,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:22:32,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:22:32,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:22:32,405 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:22:32,405 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:22:32,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:22:32,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:22:32,406 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_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c43b0aadda992ac661443360ccdcdee8e428835f1c1ebcc9d46e3a7ce26fc5 [2022-11-23 15:22:32,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:22:32,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:22:32,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:22:32,889 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:22:32,890 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:22:32,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i [2022-11-23 15:22:35,981 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:22:36,314 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:22:36,315 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i [2022-11-23 15:22:36,329 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/data/c1c16d2be/a569287a60ad4110970eee24ba2a4160/FLAG67994b604 [2022-11-23 15:22:36,349 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/data/c1c16d2be/a569287a60ad4110970eee24ba2a4160 [2022-11-23 15:22:36,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:22:36,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:22:36,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:22:36,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:22:36,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:22:36,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:36" (1/1) ... [2022-11-23 15:22:36,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de195ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:36, skipping insertion in model container [2022-11-23 15:22:36,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:36" (1/1) ... [2022-11-23 15:22:36,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:22:36,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:22:36,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:22:36,856 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-23 15:22:36,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:22:36,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:22:36,913 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:22:36,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:22:37,029 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:22:37,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37 WrapperNode [2022-11-23 15:22:37,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:22:37,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:22:37,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:22:37,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:22:37,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (1/1) ... [2022-11-23 15:22:37,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (1/1) ... [2022-11-23 15:22:37,126 INFO L138 Inliner]: procedures = 169, calls = 70, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 21 [2022-11-23 15:22:37,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:22:37,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:22:37,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:22:37,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:22:37,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (1/1) ... [2022-11-23 15:22:37,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (1/1) ... [2022-11-23 15:22:37,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (1/1) ... [2022-11-23 15:22:37,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (1/1) ... [2022-11-23 15:22:37,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (1/1) ... [2022-11-23 15:22:37,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (1/1) ... [2022-11-23 15:22:37,172 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (1/1) ... [2022-11-23 15:22:37,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (1/1) ... [2022-11-23 15:22:37,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:22:37,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:22:37,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:22:37,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:22:37,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (1/1) ... [2022-11-23 15:22:37,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:22:37,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:22:37,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:22:37,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:22:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:22:37,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:22:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:22:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:22:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:22:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:22:37,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:22:37,473 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:22:37,475 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:22:37,602 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:22:37,608 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:22:37,616 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:22:37,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:37 BoogieIcfgContainer [2022-11-23 15:22:37,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:22:37,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:22:37,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:22:37,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:22:37,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:22:36" (1/3) ... [2022-11-23 15:22:37,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1bd93b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:37, skipping insertion in model container [2022-11-23 15:22:37,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:37" (2/3) ... [2022-11-23 15:22:37,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1bd93b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:37, skipping insertion in model container [2022-11-23 15:22:37,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:37" (3/3) ... [2022-11-23 15:22:37,626 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test20-1.i [2022-11-23 15:22:37,647 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:22:37,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:22:37,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:22:37,713 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;@3a56bc71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:22:37,714 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:22:37,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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) [2022-11-23 15:22:37,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:22:37,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:37,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:37,727 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-23 15:22:37,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:37,734 INFO L85 PathProgramCache]: Analyzing trace with hash 34762974, now seen corresponding path program 1 times [2022-11-23 15:22:37,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:22:37,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883110576] [2022-11-23 15:22:37,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:37,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:22:37,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:22:37,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:22:37,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:22:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:37,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:22:37,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:22:38,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:38,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:22:38,010 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:22:38,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883110576] [2022-11-23 15:22:38,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883110576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:38,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:38,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:22:38,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657104306] [2022-11-23 15:22:38,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:38,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:22:38,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:22:38,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:22:38,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:22:38,073 INFO L87 Difference]: Start difference. First operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-23 15:22:38,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:38,115 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2022-11-23 15:22:38,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:22:38,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 12 [2022-11-23 15:22:38,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:38,125 INFO L225 Difference]: With dead ends: 27 [2022-11-23 15:22:38,125 INFO L226 Difference]: Without dead ends: 23 [2022-11-23 15:22:38,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:22:38,131 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:38,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 69 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:22:38,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-23 15:22:38,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2022-11-23 15:22:38,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2022-11-23 15:22:38,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-23 15:22:38,164 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 12 [2022-11-23 15:22:38,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:38,165 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-23 15:22:38,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-23 15:22:38,165 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-23 15:22:38,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:22:38,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:38,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:38,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:22:38,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:22:38,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-23 15:22:38,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:38,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1777573309, now seen corresponding path program 1 times [2022-11-23 15:22:38,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:22:38,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122375177] [2022-11-23 15:22:38,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:38,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:22:38,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:22:38,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:22:38,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 15:22:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:38,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:22:38,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:22:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:38,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:22:38,514 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:22:38,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122375177] [2022-11-23 15:22:38,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122375177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:38,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:38,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:22:38,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724923133] [2022-11-23 15:22:38,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:38,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:22:38,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:22:38,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:22:38,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:22:38,517 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-23 15:22:38,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:38,556 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-23 15:22:38,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:22:38,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12 [2022-11-23 15:22:38,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:38,557 INFO L225 Difference]: With dead ends: 22 [2022-11-23 15:22:38,557 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 15:22:38,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:22:38,559 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:38,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 38 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:22:38,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 15:22:38,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-23 15:22:38,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 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) [2022-11-23 15:22:38,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2022-11-23 15:22:38,562 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 12 [2022-11-23 15:22:38,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:38,563 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2022-11-23 15:22:38,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-23 15:22:38,563 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2022-11-23 15:22:38,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 15:22:38,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:38,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:38,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-23 15:22:38,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:22:38,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-23 15:22:38,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:38,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1073836985, now seen corresponding path program 1 times [2022-11-23 15:22:38,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:22:38,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097277405] [2022-11-23 15:22:38,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:38,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:22:38,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:22:38,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:22:38,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 15:22:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:22:38,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:22:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:22:38,924 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:22:38,924 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:22:38,933 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2022-11-23 15:22:38,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:22:39,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:22:39,138 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-23 15:22:39,141 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:22:39,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:22:39 BoogieIcfgContainer [2022-11-23 15:22:39,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:22:39,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:22:39,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:22:39,181 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:22:39,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:37" (3/4) ... [2022-11-23 15:22:39,185 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:22:39,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:22:39,186 INFO L158 Benchmark]: Toolchain (without parser) took 2832.92ms. Allocated memory is still 104.9MB. Free memory was 80.9MB in the beginning and 57.5MB in the end (delta: 23.3MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2022-11-23 15:22:39,187 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:22:39,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 699.98ms. Allocated memory is still 104.9MB. Free memory was 80.5MB in the beginning and 79.2MB in the end (delta: 1.3MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2022-11-23 15:22:39,190 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.88ms. Allocated memory is still 104.9MB. Free memory was 79.2MB in the beginning and 77.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:22:39,190 INFO L158 Benchmark]: Boogie Preprocessor took 47.81ms. Allocated memory is still 104.9MB. Free memory was 77.2MB in the beginning and 75.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:22:39,193 INFO L158 Benchmark]: RCFGBuilder took 441.63ms. Allocated memory is still 104.9MB. Free memory was 75.5MB in the beginning and 64.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 15:22:39,194 INFO L158 Benchmark]: TraceAbstraction took 1558.93ms. Allocated memory is still 104.9MB. Free memory was 63.8MB in the beginning and 57.5MB in the end (delta: 6.2MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-11-23 15:22:39,197 INFO L158 Benchmark]: Witness Printer took 5.10ms. Allocated memory is still 104.9MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:22:39,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 699.98ms. Allocated memory is still 104.9MB. Free memory was 80.5MB in the beginning and 79.2MB in the end (delta: 1.3MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.88ms. Allocated memory is still 104.9MB. Free memory was 79.2MB in the beginning and 77.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.81ms. Allocated memory is still 104.9MB. Free memory was 77.2MB in the beginning and 75.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 441.63ms. Allocated memory is still 104.9MB. Free memory was 75.5MB in the beginning and 64.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1558.93ms. Allocated memory is still 104.9MB. Free memory was 63.8MB in the beginning and 57.5MB in the end (delta: 6.2MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Witness Printer took 5.10ms. Allocated memory is still 104.9MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - UnprovableResult [Line: 781]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 781. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L761] struct ldv_device *saved_device_20; VAL [ldv_global_msg_list={1:0}, saved_device_20={0:0}] [L782] CALL entry_point() [L778] CALL alloc_20() [L772] CALL, EXPR ldv_malloc(sizeof(struct A20)) VAL [ldv_global_msg_list={1:0}, saved_device_20={0:0}, unknown-#in~size-unknown=16] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L772] RET, EXPR ldv_malloc(sizeof(struct A20)) VAL [ldv_global_msg_list={1:0}, ldv_malloc(sizeof(struct A20))={2:0}, saved_device_20={0:0}] [L772] struct A20 *p = (struct A20*)ldv_malloc(sizeof(struct A20)); [L773] COND TRUE \read(*p) [L774] CALL ldv_register_device(&p->dev) [L763] saved_device_20 = dev VAL [#in~dev={2:4}, dev={2:4}, ldv_global_msg_list={1:0}, saved_device_20={2:4}] [L774] RET ldv_register_device(&p->dev) [L778] RET alloc_20() [L779] saved_device_20 = 0 VAL [ldv_global_msg_list={1:0}, saved_device_20={0:0}] [L782] RET entry_point() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 38 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=1, InterpolantAutomatonStates: 9, 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:22:39,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc076899-ad19-49c8-bd98-e617b97e384b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample