./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5e519f3a 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_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- 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 [2022-11-02 20:16:18,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:16:18,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:16:18,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:16:18,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:16:18,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:16:18,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:16:18,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:16:18,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:16:18,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:16:18,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:16:18,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:16:18,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:16:18,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:16:18,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:16:18,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:16:18,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:16:18,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:16:18,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:16:18,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:16:18,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:16:18,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:16:18,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:16:18,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:16:18,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:16:18,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:16:18,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:16:18,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:16:18,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:16:18,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:16:18,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:16:18,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:16:18,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:16:18,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:16:18,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:16:18,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:16:18,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:16:18,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:16:18,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:16:18,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:16:18,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:16:18,741 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-02 20:16:18,792 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:16:18,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:16:18,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:16:18,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:16:18,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:16:18,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:16:18,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:16:18,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:16:18,797 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:16:18,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:16:18,799 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:16:18,800 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:16:18,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:16:18,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:16:18,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:16:18,801 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-02 20:16:18,801 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-02 20:16:18,801 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-02 20:16:18,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:16:18,802 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:16:18,802 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:16:18,802 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:16:18,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:16:18,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:16:18,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:16:18,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:16:18,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:16:18,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:16:18,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:16:18,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:16:18,807 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_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2022-11-02 20:16:19,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:16:19,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:16:19,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:16:19,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:16:19,252 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:16:19,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/locks/test_locks_15-1.c [2022-11-02 20:16:19,348 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/data/adab376d6/6116265ca5b94ed89378d4354e865740/FLAG7854067f3 [2022-11-02 20:16:19,937 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:16:19,938 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/sv-benchmarks/c/locks/test_locks_15-1.c [2022-11-02 20:16:19,951 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/data/adab376d6/6116265ca5b94ed89378d4354e865740/FLAG7854067f3 [2022-11-02 20:16:20,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/data/adab376d6/6116265ca5b94ed89378d4354e865740 [2022-11-02 20:16:20,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:16:20,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:16:20,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:20,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:16:20,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:16:20,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134c2d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20, skipping insertion in model container [2022-11-02 20:16:20,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:16:20,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:16:20,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2022-11-02 20:16:20,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:20,702 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:16:20,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2022-11-02 20:16:20,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:20,796 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:16:20,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20 WrapperNode [2022-11-02 20:16:20,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:20,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:20,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:16:20,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:16:20,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,875 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 195 [2022-11-02 20:16:20,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:20,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:16:20,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:16:20,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:16:20,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,919 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:16:20,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:16:20,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:16:20,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:16:20,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (1/1) ... [2022-11-02 20:16:20,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:16:20,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:20,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:20,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:16:21,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:16:21,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:16:21,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:16:21,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:16:21,165 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:16:21,167 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:16:21,520 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:16:21,527 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:16:21,528 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:16:21,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:21 BoogieIcfgContainer [2022-11-02 20:16:21,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:16:21,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:16:21,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:16:21,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:16:21,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:16:20" (1/3) ... [2022-11-02 20:16:21,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@863c035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:16:21, skipping insertion in model container [2022-11-02 20:16:21,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:20" (2/3) ... [2022-11-02 20:16:21,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@863c035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:16:21, skipping insertion in model container [2022-11-02 20:16:21,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:21" (3/3) ... [2022-11-02 20:16:21,542 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2022-11-02 20:16:21,565 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:16:21,565 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 20:16:21,657 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:16:21,665 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;@cd5a4c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:16:21,666 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-02 20:16:21,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 55 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:21,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:16:21,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:21,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:16:21,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:21,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:21,701 INFO L85 PathProgramCache]: Analyzing trace with hash 28959891, now seen corresponding path program 1 times [2022-11-02 20:16:21,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:21,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372164318] [2022-11-02 20:16:21,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:21,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:21,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:21,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:21,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372164318] [2022-11-02 20:16:21,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372164318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:21,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:21,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:21,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706001503] [2022-11-02 20:16:21,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:22,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:16:22,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:22,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:16:22,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:16:22,080 INFO L87 Difference]: Start difference. First operand has 56 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 55 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:22,113 INFO L93 Difference]: Finished difference Result 56 states and 100 transitions. [2022-11-02 20:16:22,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:16:22,119 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:16:22,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:22,131 INFO L225 Difference]: With dead ends: 56 [2022-11-02 20:16:22,132 INFO L226 Difference]: Without dead ends: 54 [2022-11-02 20:16:22,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:16:22,142 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:22,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:22,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-02 20:16:22,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-02 20:16:22,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.8846153846153846) internal successors, (98), 53 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2022-11-02 20:16:22,209 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 5 [2022-11-02 20:16:22,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:22,210 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2022-11-02 20:16:22,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2022-11-02 20:16:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:16:22,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:22,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:16:22,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:16:22,213 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:22,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:22,217 INFO L85 PathProgramCache]: Analyzing trace with hash 889700683, now seen corresponding path program 1 times [2022-11-02 20:16:22,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:22,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874592759] [2022-11-02 20:16:22,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:22,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:22,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:22,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:22,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874592759] [2022-11-02 20:16:22,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874592759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:22,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:22,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:22,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487655548] [2022-11-02 20:16:22,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:22,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:22,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:22,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:22,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:22,323 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:22,356 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2022-11-02 20:16:22,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:22,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-02 20:16:22,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:22,360 INFO L225 Difference]: With dead ends: 53 [2022-11-02 20:16:22,360 INFO L226 Difference]: Without dead ends: 51 [2022-11-02 20:16:22,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:22,363 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:22,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:22,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-02 20:16:22,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-02 20:16:22,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.9) internal successors, (95), 50 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 95 transitions. [2022-11-02 20:16:22,372 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 95 transitions. Word has length 6 [2022-11-02 20:16:22,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:22,373 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 95 transitions. [2022-11-02 20:16:22,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,374 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2022-11-02 20:16:22,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:16:22,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:22,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:22,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:16:22,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:22,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:22,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1188553263, now seen corresponding path program 1 times [2022-11-02 20:16:22,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:22,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90725563] [2022-11-02 20:16:22,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:22,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:22,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:22,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:22,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90725563] [2022-11-02 20:16:22,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90725563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:22,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:22,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:22,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579618646] [2022-11-02 20:16:22,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:22,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:22,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:22,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:22,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:22,509 INFO L87 Difference]: Start difference. First operand 51 states and 95 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:22,560 INFO L93 Difference]: Finished difference Result 99 states and 184 transitions. [2022-11-02 20:16:22,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:22,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:16:22,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:22,563 INFO L225 Difference]: With dead ends: 99 [2022-11-02 20:16:22,563 INFO L226 Difference]: Without dead ends: 99 [2022-11-02 20:16:22,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:22,565 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 76 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:22,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 240 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:22,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-02 20:16:22,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2022-11-02 20:16:22,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.90625) internal successors, (183), 96 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2022-11-02 20:16:22,583 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2022-11-02 20:16:22,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:22,589 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2022-11-02 20:16:22,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,590 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2022-11-02 20:16:22,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:16:22,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:22,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:22,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:16:22,594 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:22,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:22,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1188560455, now seen corresponding path program 1 times [2022-11-02 20:16:22,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:22,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192480534] [2022-11-02 20:16:22,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:22,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:22,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:22,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192480534] [2022-11-02 20:16:22,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192480534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:22,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:22,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:22,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830935811] [2022-11-02 20:16:22,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:22,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:22,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:22,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:22,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:22,694 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:22,732 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2022-11-02 20:16:22,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:22,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:16:22,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:22,735 INFO L225 Difference]: With dead ends: 98 [2022-11-02 20:16:22,735 INFO L226 Difference]: Without dead ends: 98 [2022-11-02 20:16:22,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:22,737 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 14 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:22,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 184 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:22,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-02 20:16:22,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-11-02 20:16:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.8969072164948453) internal successors, (184), 97 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2022-11-02 20:16:22,752 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2022-11-02 20:16:22,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:22,752 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2022-11-02 20:16:22,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,753 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2022-11-02 20:16:22,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:16:22,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:22,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:22,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:16:22,755 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:22,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:22,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1112269327, now seen corresponding path program 1 times [2022-11-02 20:16:22,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:22,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5408643] [2022-11-02 20:16:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:22,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:22,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:22,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:22,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5408643] [2022-11-02 20:16:22,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5408643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:22,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:22,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:22,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407071195] [2022-11-02 20:16:22,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:22,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:22,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:22,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:22,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:22,896 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:22,920 INFO L93 Difference]: Finished difference Result 137 states and 251 transitions. [2022-11-02 20:16:22,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:22,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:16:22,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:22,923 INFO L225 Difference]: With dead ends: 137 [2022-11-02 20:16:22,923 INFO L226 Difference]: Without dead ends: 137 [2022-11-02 20:16:22,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:22,925 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 76 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:22,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 134 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:22,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-02 20:16:22,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2022-11-02 20:16:22,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.8656716417910448) internal successors, (250), 134 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2022-11-02 20:16:22,940 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2022-11-02 20:16:22,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:22,941 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2022-11-02 20:16:22,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:22,941 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2022-11-02 20:16:22,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:16:22,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:22,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:22,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:16:22,943 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:22,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:22,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1112262135, now seen corresponding path program 1 times [2022-11-02 20:16:22,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:22,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104246821] [2022-11-02 20:16:22,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:22,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:23,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:23,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:23,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104246821] [2022-11-02 20:16:23,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104246821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:23,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:23,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:23,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511877982] [2022-11-02 20:16:23,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:23,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:23,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:23,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:23,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:23,040 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:23,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:23,062 INFO L93 Difference]: Finished difference Result 135 states and 244 transitions. [2022-11-02 20:16:23,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:23,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:16:23,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:23,065 INFO L225 Difference]: With dead ends: 135 [2022-11-02 20:16:23,065 INFO L226 Difference]: Without dead ends: 135 [2022-11-02 20:16:23,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:23,067 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 74 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:23,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 212 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:23,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-02 20:16:23,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2022-11-02 20:16:23,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.8409090909090908) internal successors, (243), 132 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2022-11-02 20:16:23,081 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2022-11-02 20:16:23,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:23,082 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2022-11-02 20:16:23,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:23,083 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2022-11-02 20:16:23,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:16:23,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:23,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:23,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:16:23,085 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:23,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:23,086 INFO L85 PathProgramCache]: Analyzing trace with hash -476078575, now seen corresponding path program 1 times [2022-11-02 20:16:23,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:23,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258836995] [2022-11-02 20:16:23,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:23,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:23,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:23,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:23,205 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:16:23,207 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-11-02 20:16:23,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-11-02 20:16:23,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:16:23,218 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:23,233 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:16:23,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:16:23 BoogieIcfgContainer [2022-11-02 20:16:23,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:16:23,345 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:16:23,345 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:16:23,345 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:16:23,346 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:21" (3/4) ... [2022-11-02 20:16:23,350 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:16:23,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:16:23,352 INFO L158 Benchmark]: Toolchain (without parser) took 3092.18ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 56.6MB in the beginning and 102.2MB in the end (delta: -45.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:23,353 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 96.5MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:23,354 INFO L158 Benchmark]: CACSL2BoogieTranslator took 535.40ms. Allocated memory is still 96.5MB. Free memory was 56.3MB in the beginning and 70.8MB in the end (delta: -14.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:16:23,354 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.02ms. Allocated memory is still 96.5MB. Free memory was 70.8MB in the beginning and 68.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:16:23,355 INFO L158 Benchmark]: Boogie Preprocessor took 45.02ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 67.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:23,357 INFO L158 Benchmark]: RCFGBuilder took 606.04ms. Allocated memory is still 96.5MB. Free memory was 67.4MB in the beginning and 50.2MB in the end (delta: 17.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-02 20:16:23,358 INFO L158 Benchmark]: TraceAbstraction took 1810.90ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 49.5MB in the beginning and 102.2MB in the end (delta: -52.7MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2022-11-02 20:16:23,358 INFO L158 Benchmark]: Witness Printer took 5.93ms. Allocated memory is still 127.9MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:23,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 96.5MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 535.40ms. Allocated memory is still 96.5MB. Free memory was 56.3MB in the beginning and 70.8MB in the end (delta: -14.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.02ms. Allocated memory is still 96.5MB. Free memory was 70.8MB in the beginning and 68.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.02ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 67.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 606.04ms. Allocated memory is still 96.5MB. Free memory was 67.4MB in the beginning and 50.2MB in the end (delta: 17.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1810.90ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 49.5MB in the beginning and 102.2MB in the end (delta: -52.7MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * Witness Printer took 5.93ms. Allocated memory is still 127.9MB. Free memory is still 102.2MB. There was no memory consumed. 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 - UnprovableResult [Line: 233]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 233. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; VAL [p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L93] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L97] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L101] COND FALSE !(p3 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L105] COND TRUE p4 != 0 [L106] lk4 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L109] COND TRUE p5 != 0 [L110] lk5 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L113] COND TRUE p6 != 0 [L114] lk6 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L117] COND TRUE p7 != 0 [L118] lk7 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L121] COND TRUE p8 != 0 [L122] lk8 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L125] COND TRUE p9 != 0 [L126] lk9 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L129] COND TRUE p10 != 0 [L130] lk10 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L133] COND FALSE !(p11 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L137] COND TRUE p12 != 0 [L138] lk12 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L141] COND TRUE p13 != 0 [L142] lk13 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L145] COND TRUE p14 != 0 [L146] lk14 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L149] COND TRUE p15 != 0 [L150] lk15 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L155] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L160] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L233] reach_error() VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] - UnprovableResult [Line: 6]: 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 1 procedures, 56 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 332 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 332 mSDsluCounter, 967 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 303 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 664 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 [2022-11-02 20:16:23,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/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 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_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- 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 [2022-11-02 20:16:26,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:16:26,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:16:26,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:16:26,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:16:26,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:16:26,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:16:26,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:16:26,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:16:26,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:16:26,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:16:26,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:16:26,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:16:26,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:16:26,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:16:26,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:16:26,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:16:26,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:16:26,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:16:26,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:16:26,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:16:26,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:16:26,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:16:26,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:16:26,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:16:26,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:16:26,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:16:26,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:16:26,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:16:26,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:16:26,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:16:26,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:16:26,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:16:26,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:16:26,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:16:26,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:16:26,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:16:26,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:16:26,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:16:26,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:16:26,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:16:26,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-02 20:16:26,446 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:16:26,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:16:26,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:16:26,449 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:16:26,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:16:26,450 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:16:26,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:16:26,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:16:26,452 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:16:26,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:16:26,454 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:16:26,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:16:26,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:16:26,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:16:26,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:16:26,455 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-02 20:16:26,455 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-02 20:16:26,456 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-02 20:16:26,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:16:26,456 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:16:26,456 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:16:26,456 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:16:26,457 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:16:26,457 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:16:26,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:16:26,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:16:26,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:16:26,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:16:26,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:16:26,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:16:26,458 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:16:26,459 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:16:26,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:16:26,459 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_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2022-11-02 20:16:26,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:16:26,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:16:26,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:16:26,932 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:16:26,937 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:16:26,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/locks/test_locks_15-1.c [2022-11-02 20:16:27,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/data/7ba4d297f/9227d90fd92e4faa934623f6c394ef4e/FLAGa9c050224 [2022-11-02 20:16:27,650 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:16:27,650 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/sv-benchmarks/c/locks/test_locks_15-1.c [2022-11-02 20:16:27,669 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/data/7ba4d297f/9227d90fd92e4faa934623f6c394ef4e/FLAGa9c050224 [2022-11-02 20:16:27,983 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/data/7ba4d297f/9227d90fd92e4faa934623f6c394ef4e [2022-11-02 20:16:27,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:16:27,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:16:27,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:27,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:16:28,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:16:28,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:27" (1/1) ... [2022-11-02 20:16:28,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51fd0192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28, skipping insertion in model container [2022-11-02 20:16:28,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:27" (1/1) ... [2022-11-02 20:16:28,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:16:28,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:16:28,262 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2022-11-02 20:16:28,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:28,280 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:16:28,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2022-11-02 20:16:28,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:28,380 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:16:28,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28 WrapperNode [2022-11-02 20:16:28,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:28,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:28,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:16:28,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:16:28,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (1/1) ... [2022-11-02 20:16:28,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (1/1) ... [2022-11-02 20:16:28,428 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 179 [2022-11-02 20:16:28,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:28,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:16:28,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:16:28,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:16:28,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (1/1) ... [2022-11-02 20:16:28,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (1/1) ... [2022-11-02 20:16:28,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (1/1) ... [2022-11-02 20:16:28,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (1/1) ... [2022-11-02 20:16:28,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (1/1) ... [2022-11-02 20:16:28,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (1/1) ... [2022-11-02 20:16:28,486 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (1/1) ... [2022-11-02 20:16:28,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (1/1) ... [2022-11-02 20:16:28,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:16:28,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:16:28,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:16:28,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:16:28,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (1/1) ... [2022-11-02 20:16:28,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:16:28,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:28,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:28,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:16:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:16:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:16:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:16:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 20:16:28,748 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:16:28,751 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:16:29,247 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:16:29,256 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:16:29,268 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:16:29,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:29 BoogieIcfgContainer [2022-11-02 20:16:29,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:16:29,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:16:29,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:16:29,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:16:29,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:16:27" (1/3) ... [2022-11-02 20:16:29,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef04f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:16:29, skipping insertion in model container [2022-11-02 20:16:29,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:28" (2/3) ... [2022-11-02 20:16:29,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef04f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:16:29, skipping insertion in model container [2022-11-02 20:16:29,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:29" (3/3) ... [2022-11-02 20:16:29,314 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2022-11-02 20:16:29,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:16:29,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 20:16:29,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:16:29,450 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;@3030177c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:16:29,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-02 20:16:29,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 55 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:29,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:16:29,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:29,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:16:29,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:29,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:29,494 INFO L85 PathProgramCache]: Analyzing trace with hash 28959891, now seen corresponding path program 1 times [2022-11-02 20:16:29,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:29,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640246185] [2022-11-02 20:16:29,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:29,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:29,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:29,518 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:29,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:16:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:29,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 20:16:29,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:29,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:29,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:29,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640246185] [2022-11-02 20:16:29,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640246185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:29,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:29,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:29,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408260225] [2022-11-02 20:16:29,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:29,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:16:29,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:29,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:16:29,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:16:29,747 INFO L87 Difference]: Start difference. First operand has 56 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 55 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:29,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:29,785 INFO L93 Difference]: Finished difference Result 56 states and 100 transitions. [2022-11-02 20:16:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:16:29,788 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:16:29,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:29,801 INFO L225 Difference]: With dead ends: 56 [2022-11-02 20:16:29,801 INFO L226 Difference]: Without dead ends: 54 [2022-11-02 20:16:29,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:16:29,812 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:29,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:29,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-02 20:16:29,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-02 20:16:29,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.8846153846153846) internal successors, (98), 53 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:29,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2022-11-02 20:16:29,874 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 5 [2022-11-02 20:16:29,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:29,874 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2022-11-02 20:16:29,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:29,875 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2022-11-02 20:16:29,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:16:29,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:29,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:16:29,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:30,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:30,091 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:30,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:30,092 INFO L85 PathProgramCache]: Analyzing trace with hash 889700683, now seen corresponding path program 1 times [2022-11-02 20:16:30,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:30,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750344375] [2022-11-02 20:16:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:30,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:30,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:30,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:30,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:16:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:30,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:16:30,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:30,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:30,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:30,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:30,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750344375] [2022-11-02 20:16:30,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750344375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:30,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:30,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:16:30,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503528361] [2022-11-02 20:16:30,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:30,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:30,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:30,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:30,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:30,219 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:30,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:30,246 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2022-11-02 20:16:30,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:30,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-02 20:16:30,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:30,248 INFO L225 Difference]: With dead ends: 53 [2022-11-02 20:16:30,249 INFO L226 Difference]: Without dead ends: 51 [2022-11-02 20:16:30,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:30,251 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:30,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:30,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-02 20:16:30,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-02 20:16:30,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.9) internal successors, (95), 50 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:30,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 95 transitions. [2022-11-02 20:16:30,261 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 95 transitions. Word has length 6 [2022-11-02 20:16:30,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:30,262 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 95 transitions. [2022-11-02 20:16:30,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:30,262 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2022-11-02 20:16:30,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:16:30,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:30,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:30,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:30,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:30,479 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:30,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:30,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1188553263, now seen corresponding path program 1 times [2022-11-02 20:16:30,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:30,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102990869] [2022-11-02 20:16:30,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:30,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:30,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:30,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:30,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:16:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:30,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:16:30,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:30,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:30,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:30,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:30,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102990869] [2022-11-02 20:16:30,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102990869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:30,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:30,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:30,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93141197] [2022-11-02 20:16:30,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:30,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:30,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:30,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:30,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:30,669 INFO L87 Difference]: Start difference. First operand 51 states and 95 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:30,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:30,720 INFO L93 Difference]: Finished difference Result 99 states and 184 transitions. [2022-11-02 20:16:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:30,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:16:30,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:30,728 INFO L225 Difference]: With dead ends: 99 [2022-11-02 20:16:30,729 INFO L226 Difference]: Without dead ends: 99 [2022-11-02 20:16:30,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:30,733 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 76 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:30,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 240 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:30,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-02 20:16:30,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2022-11-02 20:16:30,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.90625) internal successors, (183), 96 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:30,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2022-11-02 20:16:30,760 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2022-11-02 20:16:30,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:30,760 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2022-11-02 20:16:30,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2022-11-02 20:16:30,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:16:30,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:30,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:30,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:30,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:30,977 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:30,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:30,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1188560455, now seen corresponding path program 1 times [2022-11-02 20:16:30,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:30,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395291903] [2022-11-02 20:16:30,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:30,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:30,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:30,992 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:31,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:16:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:31,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:16:31,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:31,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:31,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:31,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:31,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395291903] [2022-11-02 20:16:31,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395291903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:31,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:31,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:31,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499756252] [2022-11-02 20:16:31,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:31,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:31,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:31,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:31,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:31,182 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:31,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:31,204 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2022-11-02 20:16:31,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:31,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:16:31,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:31,206 INFO L225 Difference]: With dead ends: 98 [2022-11-02 20:16:31,207 INFO L226 Difference]: Without dead ends: 98 [2022-11-02 20:16:31,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:31,209 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 14 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:31,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 184 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:31,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-02 20:16:31,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-11-02 20:16:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.8969072164948453) internal successors, (184), 97 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:31,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2022-11-02 20:16:31,221 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2022-11-02 20:16:31,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:31,221 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2022-11-02 20:16:31,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:31,222 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2022-11-02 20:16:31,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:16:31,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:31,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:31,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:31,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:31,438 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:31,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:31,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1112269327, now seen corresponding path program 1 times [2022-11-02 20:16:31,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:31,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547100869] [2022-11-02 20:16:31,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:31,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:31,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:31,441 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:31,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:16:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:31,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:16:31,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:31,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:31,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:31,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:31,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547100869] [2022-11-02 20:16:31,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547100869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:31,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:31,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:31,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829443565] [2022-11-02 20:16:31,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:31,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:31,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:31,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:31,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:31,558 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:31,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:31,578 INFO L93 Difference]: Finished difference Result 137 states and 251 transitions. [2022-11-02 20:16:31,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:31,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:16:31,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:31,581 INFO L225 Difference]: With dead ends: 137 [2022-11-02 20:16:31,581 INFO L226 Difference]: Without dead ends: 137 [2022-11-02 20:16:31,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:31,582 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 76 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:31,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 134 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-02 20:16:31,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2022-11-02 20:16:31,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.8656716417910448) internal successors, (250), 134 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:31,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2022-11-02 20:16:31,609 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2022-11-02 20:16:31,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:31,610 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2022-11-02 20:16:31,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:31,610 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2022-11-02 20:16:31,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:16:31,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:31,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:31,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-02 20:16:31,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:31,828 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:31,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:31,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1112262135, now seen corresponding path program 1 times [2022-11-02 20:16:31,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:31,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224719939] [2022-11-02 20:16:31,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:31,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:31,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:31,832 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:31,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:16:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:31,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:16:31,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:31,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:31,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:31,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:16:31,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224719939] [2022-11-02 20:16:31,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224719939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:31,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:31,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:31,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212069104] [2022-11-02 20:16:31,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:31,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:31,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:16:31,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:31,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:31,985 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:32,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:32,008 INFO L93 Difference]: Finished difference Result 135 states and 244 transitions. [2022-11-02 20:16:32,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:32,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:16:32,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:16:32,011 INFO L225 Difference]: With dead ends: 135 [2022-11-02 20:16:32,011 INFO L226 Difference]: Without dead ends: 135 [2022-11-02 20:16:32,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:32,012 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 74 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:16:32,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 212 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:16:32,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-02 20:16:32,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2022-11-02 20:16:32,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.8409090909090908) internal successors, (243), 132 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:32,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2022-11-02 20:16:32,023 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2022-11-02 20:16:32,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:16:32,023 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2022-11-02 20:16:32,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:32,024 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2022-11-02 20:16:32,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:16:32,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:16:32,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:32,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:32,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:32,240 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 20:16:32,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:32,241 INFO L85 PathProgramCache]: Analyzing trace with hash -476078575, now seen corresponding path program 1 times [2022-11-02 20:16:32,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:16:32,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545119994] [2022-11-02 20:16:32,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:32,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:16:32,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:16:32,243 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:16:32,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 20:16:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:32,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:32,386 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-02 20:16:32,386 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:16:32,387 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-11-02 20:16:32,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-11-02 20:16:32,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:32,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:16:32,606 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:32,610 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:16:32,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:16:32 BoogieIcfgContainer [2022-11-02 20:16:32,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:16:32,667 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:16:32,667 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:16:32,668 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:16:32,668 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:29" (3/4) ... [2022-11-02 20:16:32,672 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:16:32,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:16:32,673 INFO L158 Benchmark]: Toolchain (without parser) took 4682.46ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 55.7MB in the beginning and 56.9MB in the end (delta: -1.1MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-11-02 20:16:32,674 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 75.5MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:32,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.97ms. Allocated memory is still 75.5MB. Free memory was 55.5MB in the beginning and 56.9MB in the end (delta: -1.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 20:16:32,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.78ms. Allocated memory is still 75.5MB. Free memory was 56.7MB in the beginning and 54.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:16:32,675 INFO L158 Benchmark]: Boogie Preprocessor took 63.08ms. Allocated memory is still 75.5MB. Free memory was 54.8MB in the beginning and 53.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:32,675 INFO L158 Benchmark]: RCFGBuilder took 777.71ms. Allocated memory is still 75.5MB. Free memory was 53.2MB in the beginning and 36.2MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-02 20:16:32,676 INFO L158 Benchmark]: TraceAbstraction took 3363.46ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 56.7MB in the beginning and 56.9MB in the end (delta: -182.4kB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-11-02 20:16:32,676 INFO L158 Benchmark]: Witness Printer took 5.28ms. Allocated memory is still 98.6MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:32,679 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 75.5MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.97ms. Allocated memory is still 75.5MB. Free memory was 55.5MB in the beginning and 56.9MB in the end (delta: -1.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.78ms. Allocated memory is still 75.5MB. Free memory was 56.7MB in the beginning and 54.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.08ms. Allocated memory is still 75.5MB. Free memory was 54.8MB in the beginning and 53.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 777.71ms. Allocated memory is still 75.5MB. Free memory was 53.2MB in the beginning and 36.2MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3363.46ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 56.7MB in the beginning and 56.9MB in the end (delta: -182.4kB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Witness Printer took 5.28ms. Allocated memory is still 98.6MB. Free memory is still 56.9MB. There was no memory consumed. 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 - UnprovableResult [Line: 233]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 233. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0] [L93] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0] [L97] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0] [L101] COND FALSE !(p3 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0] [L105] COND TRUE p4 != 0 [L106] lk4 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2] [L109] COND TRUE p5 != 0 [L110] lk5 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2] [L113] COND TRUE p6 != 0 [L114] lk6 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2] [L117] COND TRUE p7 != 0 [L118] lk7 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2] [L121] COND TRUE p8 != 0 [L122] lk8 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2] [L125] COND TRUE p9 != 0 [L126] lk9 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L129] COND TRUE p10 != 0 [L130] lk10 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L133] COND FALSE !(p11 != 0) VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L137] COND TRUE p12 != 0 [L138] lk12 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L141] COND TRUE p13 != 0 [L142] lk13 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L145] COND TRUE p14 != 0 [L146] lk14 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L149] COND TRUE p15 != 0 [L150] lk15 = 1 VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p15=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L155] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p15=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L160] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p15=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L233] reach_error() VAL [cond=2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p15=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] - UnprovableResult [Line: 6]: 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 1 procedures, 56 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 332 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 332 mSDsluCounter, 967 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 303 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 664 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 287 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 [2022-11-02 20:16:32,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f361759-dd5b-419b-a8d0-eb2e29f09156/bin/uautomizer-Dbtcem3rbc/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 Result: UNKNOWN: Overapproximated counterexample