./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_14-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a 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_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c --- 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-38b53e6 [2022-11-25 23:53:41,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:53:41,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:53:42,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:53:42,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:53:42,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:53:42,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:53:42,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:53:42,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:53:42,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:53:42,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:53:42,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:53:42,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:53:42,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:53:42,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:53:42,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:53:42,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:53:42,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:53:42,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:53:42,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:53:42,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:53:42,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:53:42,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:53:42,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:53:42,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:53:42,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:53:42,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:53:42,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:53:42,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:53:42,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:53:42,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:53:42,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:53:42,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:53:42,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:53:42,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:53:42,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:53:42,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:53:42,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:53:42,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:53:42,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:53:42,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:53:42,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-25 23:53:42,118 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:53:42,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:53:42,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:53:42,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:53:42,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:53:42,121 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:53:42,121 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:53:42,121 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:53:42,122 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:53:42,122 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:53:42,123 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:53:42,123 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:53:42,123 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:53:42,124 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:53:42,124 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:53:42,124 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:53:42,124 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:53:42,125 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:53:42,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 23:53:42,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 23:53:42,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:53:42,126 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:53:42,126 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:53:42,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:53:42,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:53:42,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:53:42,128 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 23:53:42,128 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 23:53:42,128 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 23:53:42,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:53:42,129 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:53:42,129 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:53:42,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:53:42,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:53:42,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:53:42,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:53:42,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:53:42,131 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:53:42,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:53:42,131 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:53:42,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:53:42,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:53:42,132 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_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2022-11-25 23:53:42,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:53:42,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:53:42,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:53:42,538 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:53:42,539 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:53:42,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/locks/test_locks_14-2.c [2022-11-25 23:53:45,630 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:53:45,850 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:53:45,851 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/sv-benchmarks/c/locks/test_locks_14-2.c [2022-11-25 23:53:45,863 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/data/8b61b8ea1/ab1b5fdc76b6414fb8a20a4aa23d44d8/FLAGe5530461d [2022-11-25 23:53:45,877 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/data/8b61b8ea1/ab1b5fdc76b6414fb8a20a4aa23d44d8 [2022-11-25 23:53:45,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:53:45,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:53:45,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:53:45,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:53:45,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:53:45,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:53:45" (1/1) ... [2022-11-25 23:53:45,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e97400e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:45, skipping insertion in model container [2022-11-25 23:53:45,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:53:45" (1/1) ... [2022-11-25 23:53:45,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:53:45,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:53:46,147 WARN L237 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_7aedc05f-acec-44d0-b90c-2542ff0148aa/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2022-11-25 23:53:46,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:53:46,165 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:53:46,190 WARN L237 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_7aedc05f-acec-44d0-b90c-2542ff0148aa/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2022-11-25 23:53:46,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:53:46,207 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:53:46,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46 WrapperNode [2022-11-25 23:53:46,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:53:46,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:53:46,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:53:46,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:53:46,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (1/1) ... [2022-11-25 23:53:46,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (1/1) ... [2022-11-25 23:53:46,258 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 184 [2022-11-25 23:53:46,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:53:46,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:53:46,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:53:46,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:53:46,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (1/1) ... [2022-11-25 23:53:46,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (1/1) ... [2022-11-25 23:53:46,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (1/1) ... [2022-11-25 23:53:46,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (1/1) ... [2022-11-25 23:53:46,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (1/1) ... [2022-11-25 23:53:46,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (1/1) ... [2022-11-25 23:53:46,286 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (1/1) ... [2022-11-25 23:53:46,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (1/1) ... [2022-11-25 23:53:46,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:53:46,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:53:46,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:53:46,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:53:46,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (1/1) ... [2022-11-25 23:53:46,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:53:46,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:46,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:53:46,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:53:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:53:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:53:46,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:53:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:53:46,514 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:53:46,516 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:53:46,854 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:53:47,090 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:53:47,091 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:53:47,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:53:47 BoogieIcfgContainer [2022-11-25 23:53:47,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:53:47,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:53:47,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:53:47,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:53:47,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:53:45" (1/3) ... [2022-11-25 23:53:47,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b47032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:53:47, skipping insertion in model container [2022-11-25 23:53:47,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:46" (2/3) ... [2022-11-25 23:53:47,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b47032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:53:47, skipping insertion in model container [2022-11-25 23:53:47,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:53:47" (3/3) ... [2022-11-25 23:53:47,115 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2022-11-25 23:53:47,137 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:53:47,137 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:53:47,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:53:47,202 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;@38a96608, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:53:47,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:53:47,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 34 states have (on average 1.9411764705882353) internal successors, (66), 36 states have internal predecessors, (66), 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) [2022-11-25 23:53:47,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:53:47,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:47,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:53:47,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 23:53:47,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:47,221 INFO L85 PathProgramCache]: Analyzing trace with hash 9113736, now seen corresponding path program 1 times [2022-11-25 23:53:47,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:47,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546953187] [2022-11-25 23:53:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:47,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:47,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:47,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546953187] [2022-11-25 23:53:47,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546953187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:47,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:47,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:53:47,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041607548] [2022-11-25 23:53:47,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:47,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:53:47,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:47,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:53:47,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:53:47,438 INFO L87 Difference]: Start difference. First operand has 37 states, 34 states have (on average 1.9411764705882353) internal successors, (66), 36 states have internal predecessors, (66), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-25 23:53:47,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:47,471 INFO L93 Difference]: Finished difference Result 37 states and 64 transitions. [2022-11-25 23:53:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:53:47,474 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-25 23:53:47,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:47,483 INFO L225 Difference]: With dead ends: 37 [2022-11-25 23:53:47,484 INFO L226 Difference]: Without dead ends: 36 [2022-11-25 23:53:47,485 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 [2022-11-25 23:53:47,489 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:47,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:53:47,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-25 23:53:47,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-25 23:53:47,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 35 states have internal predecessors, (63), 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) [2022-11-25 23:53:47,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2022-11-25 23:53:47,527 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 4 [2022-11-25 23:53:47,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:47,527 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2022-11-25 23:53:47,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-25 23:53:47,528 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2022-11-25 23:53:47,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:53:47,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:47,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:53:47,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:53:47,530 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 23:53:47,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:47,531 INFO L85 PathProgramCache]: Analyzing trace with hash 274635153, now seen corresponding path program 1 times [2022-11-25 23:53:47,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:47,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865439849] [2022-11-25 23:53:47,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:47,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:47,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:47,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865439849] [2022-11-25 23:53:47,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865439849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:47,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:47,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:53:47,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164663066] [2022-11-25 23:53:47,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:47,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:47,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:47,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:47,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:47,599 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand has 3 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) [2022-11-25 23:53:47,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:47,614 INFO L93 Difference]: Finished difference Result 35 states and 62 transitions. [2022-11-25 23:53:47,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:47,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2022-11-25 23:53:47,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:47,616 INFO L225 Difference]: With dead ends: 35 [2022-11-25 23:53:47,616 INFO L226 Difference]: Without dead ends: 33 [2022-11-25 23:53:47,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:47,618 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 58 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:47,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 60 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:53:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-25 23:53:47,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-25 23:53:47,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.875) internal successors, (60), 32 states have internal predecessors, (60), 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) [2022-11-25 23:53:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 60 transitions. [2022-11-25 23:53:47,624 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 60 transitions. Word has length 5 [2022-11-25 23:53:47,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:47,625 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 60 transitions. [2022-11-25 23:53:47,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-25 23:53:47,625 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 60 transitions. [2022-11-25 23:53:47,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:53:47,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:47,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:53:47,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:53:47,627 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 23:53:47,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:47,627 INFO L85 PathProgramCache]: Analyzing trace with hash -67997349, now seen corresponding path program 1 times [2022-11-25 23:53:47,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:47,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016151829] [2022-11-25 23:53:47,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:47,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:47,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:47,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:47,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016151829] [2022-11-25 23:53:47,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016151829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:47,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:47,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:53:47,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273932295] [2022-11-25 23:53:47,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:47,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:53:47,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:47,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:53:47,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:53:47,808 INFO L87 Difference]: Start difference. First operand 33 states and 60 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:47,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:47,856 INFO L93 Difference]: Finished difference Result 63 states and 114 transitions. [2022-11-25 23:53:47,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:53:47,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 23:53:47,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:47,858 INFO L225 Difference]: With dead ends: 63 [2022-11-25 23:53:47,858 INFO L226 Difference]: Without dead ends: 63 [2022-11-25 23:53:47,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:53:47,860 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 55 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:47,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 164 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:53:47,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-25 23:53:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 33. [2022-11-25 23:53:47,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.84375) internal successors, (59), 32 states have internal predecessors, (59), 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) [2022-11-25 23:53:47,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 59 transitions. [2022-11-25 23:53:47,867 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 59 transitions. Word has length 6 [2022-11-25 23:53:47,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:47,868 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 59 transitions. [2022-11-25 23:53:47,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:47,868 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 59 transitions. [2022-11-25 23:53:47,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:53:47,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:47,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:53:47,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:53:47,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 23:53:47,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:47,871 INFO L85 PathProgramCache]: Analyzing trace with hash -67990157, now seen corresponding path program 1 times [2022-11-25 23:53:47,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:47,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199582987] [2022-11-25 23:53:47,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:47,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:53:47,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:53:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:53:47,926 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:53:47,927 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:53:47,928 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-11-25 23:53:47,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-11-25 23:53:47,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:53:47,935 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 23:53:47,938 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:53:47,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:53:47 BoogieIcfgContainer [2022-11-25 23:53:47,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:53:47,968 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:53:47,968 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:53:47,968 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:53:47,969 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:53:47" (3/4) ... [2022-11-25 23:53:47,972 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:53:47,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:53:47,973 INFO L158 Benchmark]: Toolchain (without parser) took 2092.36ms. Allocated memory is still 157.3MB. Free memory was 126.0MB in the beginning and 115.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-11-25 23:53:47,974 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory was 94.9MB in the beginning and 94.9MB in the end (delta: 86.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:53:47,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.54ms. Allocated memory is still 157.3MB. Free memory was 126.0MB in the beginning and 120.3MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 23:53:47,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.26ms. Allocated memory is still 157.3MB. Free memory was 120.3MB in the beginning and 118.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:53:47,976 INFO L158 Benchmark]: Boogie Preprocessor took 29.03ms. Allocated memory is still 157.3MB. Free memory was 118.2MB in the beginning and 116.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:53:47,976 INFO L158 Benchmark]: RCFGBuilder took 799.72ms. Allocated memory is still 157.3MB. Free memory was 116.9MB in the beginning and 87.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-25 23:53:47,977 INFO L158 Benchmark]: TraceAbstraction took 859.15ms. Allocated memory is still 157.3MB. Free memory was 86.8MB in the beginning and 115.4MB in the end (delta: -28.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:53:47,977 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 157.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:53:47,980 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory was 94.9MB in the beginning and 94.9MB in the end (delta: 86.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.54ms. Allocated memory is still 157.3MB. Free memory was 126.0MB in the beginning and 120.3MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.26ms. Allocated memory is still 157.3MB. Free memory was 120.3MB in the beginning and 118.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.03ms. Allocated memory is still 157.3MB. Free memory was 118.2MB in the beginning and 116.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 799.72ms. Allocated memory is still 157.3MB. Free memory was 116.9MB in the beginning and 87.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 859.15ms. Allocated memory is still 157.3MB. Free memory was 86.8MB in the beginning and 115.4MB in the end (delta: -28.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 157.3MB. Free memory is still 115.4MB. 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: 219]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 219. 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; [L51] int cond; VAL [p1=0, p10=1, p11=0, p12=1, p13=0, p14=0, p2=0, p3=1, p4=0, p5=1, p6=1, p7=1, p8=0, p9=1] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 [L88] COND FALSE !(p1 != 0) [L92] COND FALSE !(p2 != 0) [L96] COND TRUE p3 != 0 [L97] lk3 = 1 [L100] COND FALSE !(p4 != 0) [L104] COND TRUE p5 != 0 [L105] lk5 = 1 [L108] COND TRUE p6 != 0 [L109] lk6 = 1 [L112] COND TRUE p7 != 0 [L113] lk7 = 1 [L116] COND FALSE !(p8 != 0) [L120] COND TRUE p9 != 0 [L121] lk9 = 1 [L124] COND TRUE p10 != 0 [L125] lk10 = 1 [L128] COND FALSE !(p11 != 0) [L132] COND TRUE p12 != 0 [L133] lk12 = 1 [L136] COND FALSE !(p13 != 0) [L140] COND FALSE !(p14 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=0, p14=0, p2=0, p3=1, p4=0, p5=1, p6=1, p7=1, p8=0, p9=1] [L146] COND FALSE !(p1 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=0, p14=0, p2=0, p3=1, p4=0, p5=1, p6=1, p7=1, p8=0, p9=1] [L151] COND FALSE !(p2 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=0, p14=0, p2=0, p3=1, p4=0, p5=1, p6=1, p7=1, p8=0, p9=1] [L219] reach_error() VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=0, p14=0, p2=0, p3=1, p4=0, p5=1, p6=1, p7=1, p8=0, 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, 37 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 285 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 109 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 176 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 30 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2022-11-25 23:53:48,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/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 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_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c --- 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-38b53e6 [2022-11-25 23:53:50,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:53:50,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:53:50,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:53:50,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:53:50,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:53:50,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:53:50,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:53:50,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:53:50,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:53:50,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:53:50,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:53:50,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:53:50,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:53:50,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:53:50,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:53:50,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:53:50,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:53:50,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:53:50,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:53:50,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:53:50,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:53:50,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:53:50,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:53:50,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:53:50,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:53:50,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:53:50,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:53:50,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:53:50,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:53:50,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:53:50,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:53:50,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:53:50,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:53:50,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:53:50,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:53:50,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:53:50,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:53:50,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:53:50,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:53:50,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:53:50,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-25 23:53:50,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:53:50,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:53:50,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:53:50,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:53:50,798 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:53:50,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:53:50,799 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:53:50,799 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:53:50,799 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:53:50,800 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:53:50,801 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:53:50,801 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:53:50,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 23:53:50,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 23:53:50,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:53:50,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:53:50,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:53:50,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:53:50,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:53:50,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:53:50,804 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 23:53:50,804 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 23:53:50,804 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 23:53:50,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:53:50,805 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:53:50,805 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:53:50,805 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:53:50,805 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:53:50,805 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:53:50,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:53:50,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:53:50,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:53:50,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:53:50,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:53:50,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:53:50,807 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:53:50,808 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:53:50,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:53:50,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:53:50,808 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_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2022-11-25 23:53:51,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:53:51,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:53:51,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:53:51,199 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:53:51,200 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:53:51,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/locks/test_locks_14-2.c [2022-11-25 23:53:54,569 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:53:54,808 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:53:54,809 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/sv-benchmarks/c/locks/test_locks_14-2.c [2022-11-25 23:53:54,817 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/data/f32a0acd0/eac1157d0f2b470890dd2ffe59afb36d/FLAG5b4682783 [2022-11-25 23:53:54,830 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/data/f32a0acd0/eac1157d0f2b470890dd2ffe59afb36d [2022-11-25 23:53:54,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:53:54,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:53:54,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:53:54,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:53:54,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:53:54,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:53:54" (1/1) ... [2022-11-25 23:53:54,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a28dadb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:54, skipping insertion in model container [2022-11-25 23:53:54,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:53:54" (1/1) ... [2022-11-25 23:53:54,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:53:54,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:53:55,050 WARN L237 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_7aedc05f-acec-44d0-b90c-2542ff0148aa/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2022-11-25 23:53:55,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:53:55,078 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:53:55,131 WARN L237 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_7aedc05f-acec-44d0-b90c-2542ff0148aa/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2022-11-25 23:53:55,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:53:55,151 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:53:55,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55 WrapperNode [2022-11-25 23:53:55,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:53:55,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:53:55,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:53:55,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:53:55,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (1/1) ... [2022-11-25 23:53:55,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (1/1) ... [2022-11-25 23:53:55,223 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 169 [2022-11-25 23:53:55,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:53:55,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:53:55,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:53:55,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:53:55,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (1/1) ... [2022-11-25 23:53:55,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (1/1) ... [2022-11-25 23:53:55,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (1/1) ... [2022-11-25 23:53:55,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (1/1) ... [2022-11-25 23:53:55,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (1/1) ... [2022-11-25 23:53:55,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (1/1) ... [2022-11-25 23:53:55,279 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (1/1) ... [2022-11-25 23:53:55,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (1/1) ... [2022-11-25 23:53:55,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:53:55,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:53:55,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:53:55,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:53:55,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (1/1) ... [2022-11-25 23:53:55,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:53:55,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:55,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:53:55,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:53:55,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:53:55,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:53:55,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:53:55,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:53:55,550 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:53:55,553 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:53:55,981 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:53:55,988 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:53:56,002 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:53:56,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:53:56 BoogieIcfgContainer [2022-11-25 23:53:56,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:53:56,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:53:56,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:53:56,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:53:56,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:53:54" (1/3) ... [2022-11-25 23:53:56,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a87197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:53:56, skipping insertion in model container [2022-11-25 23:53:56,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:55" (2/3) ... [2022-11-25 23:53:56,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a87197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:53:56, skipping insertion in model container [2022-11-25 23:53:56,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:53:56" (3/3) ... [2022-11-25 23:53:56,014 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2022-11-25 23:53:56,034 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:53:56,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:53:56,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:53:56,106 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;@9ae7ac2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:53:56,107 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:53:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 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) [2022-11-25 23:53:56,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:53:56,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:56,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:53:56,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 23:53:56,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:56,129 INFO L85 PathProgramCache]: Analyzing trace with hash 28943010, now seen corresponding path program 1 times [2022-11-25 23:53:56,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:53:56,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893798766] [2022-11-25 23:53:56,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:56,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:56,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:53:56,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:53:56,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 23:53:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:56,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 23:53:56,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:56,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:56,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:56,287 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:53:56,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893798766] [2022-11-25 23:53:56,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893798766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:56,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:56,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:53:56,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476209558] [2022-11-25 23:53:56,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:56,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:53:56,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:53:56,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:53:56,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:53:56,370 INFO L87 Difference]: Start difference. First operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 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) [2022-11-25 23:53:56,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:56,402 INFO L93 Difference]: Finished difference Result 53 states and 94 transitions. [2022-11-25 23:53:56,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:53:56,406 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 [2022-11-25 23:53:56,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:56,419 INFO L225 Difference]: With dead ends: 53 [2022-11-25 23:53:56,419 INFO L226 Difference]: Without dead ends: 51 [2022-11-25 23:53:56,422 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 [2022-11-25 23:53:56,425 INFO L413 NwaCegarLoop]: 94 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, 94 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 [2022-11-25 23:53:56,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:53:56,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-25 23:53:56,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-25 23:53:56,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 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) [2022-11-25 23:53:56,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 92 transitions. [2022-11-25 23:53:56,464 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 92 transitions. Word has length 5 [2022-11-25 23:53:56,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:56,464 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 92 transitions. [2022-11-25 23:53:56,464 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) [2022-11-25 23:53:56,465 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 92 transitions. [2022-11-25 23:53:56,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:53:56,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:56,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:53:56,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:56,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:56,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 23:53:56,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:56,676 INFO L85 PathProgramCache]: Analyzing trace with hash 889700139, now seen corresponding path program 1 times [2022-11-25 23:53:56,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:53:56,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932241566] [2022-11-25 23:53:56,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:56,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:56,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:53:56,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:53:56,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 23:53:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:56,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:56,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:56,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:56,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:56,754 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:53:56,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932241566] [2022-11-25 23:53:56,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932241566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:56,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:56,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:53:56,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889415269] [2022-11-25 23:53:56,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:56,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:56,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:53:56,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:56,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:56,759 INFO L87 Difference]: Start difference. First operand 51 states and 92 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) [2022-11-25 23:53:56,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:56,789 INFO L93 Difference]: Finished difference Result 50 states and 91 transitions. [2022-11-25 23:53:56,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:56,790 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 [2022-11-25 23:53:56,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:56,792 INFO L225 Difference]: With dead ends: 50 [2022-11-25 23:53:56,792 INFO L226 Difference]: Without dead ends: 48 [2022-11-25 23:53:56,792 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 [2022-11-25 23:53:56,797 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 86 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 91 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 [2022-11-25 23:53:56,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 91 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:53:56,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-25 23:53:56,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-25 23:53:56,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 47 states have internal predecessors, (89), 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) [2022-11-25 23:53:56,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 89 transitions. [2022-11-25 23:53:56,810 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 89 transitions. Word has length 6 [2022-11-25 23:53:56,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:56,811 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 89 transitions. [2022-11-25 23:53:56,812 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) [2022-11-25 23:53:56,812 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 89 transitions. [2022-11-25 23:53:56,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 23:53:56,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:56,814 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] [2022-11-25 23:53:56,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-25 23:53:57,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:57,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 23:53:57,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:57,027 INFO L85 PathProgramCache]: Analyzing trace with hash 792943379, now seen corresponding path program 1 times [2022-11-25 23:53:57,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:53:57,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896528821] [2022-11-25 23:53:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:57,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:57,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:53:57,030 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:53:57,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 23:53:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:57,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:57,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:57,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:57,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:57,167 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:53:57,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896528821] [2022-11-25 23:53:57,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896528821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:57,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:57,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:53:57,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783433156] [2022-11-25 23:53:57,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:57,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:57,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:53:57,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:57,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:57,170 INFO L87 Difference]: Start difference. First operand 48 states and 89 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 23:53:57,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:57,197 INFO L93 Difference]: Finished difference Result 93 states and 173 transitions. [2022-11-25 23:53:57,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:57,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2022-11-25 23:53:57,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:57,199 INFO L225 Difference]: With dead ends: 93 [2022-11-25 23:53:57,199 INFO L226 Difference]: Without dead ends: 93 [2022-11-25 23:53:57,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:57,201 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 68 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:57,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 174 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:53:57,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-25 23:53:57,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 63. [2022-11-25 23:53:57,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.903225806451613) internal successors, (118), 62 states have internal predecessors, (118), 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) [2022-11-25 23:53:57,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2022-11-25 23:53:57,211 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2022-11-25 23:53:57,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:57,212 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2022-11-25 23:53:57,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 23:53:57,212 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2022-11-25 23:53:57,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 23:53:57,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:57,213 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] [2022-11-25 23:53:57,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:57,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:57,424 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 23:53:57,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:57,427 INFO L85 PathProgramCache]: Analyzing trace with hash 792950571, now seen corresponding path program 1 times [2022-11-25 23:53:57,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:53:57,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392042101] [2022-11-25 23:53:57,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:57,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:57,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:53:57,436 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:53:57,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 23:53:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:57,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:57,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:57,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:57,588 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:53:57,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392042101] [2022-11-25 23:53:57,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392042101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:57,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:57,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:53:57,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390215520] [2022-11-25 23:53:57,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:57,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:57,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:53:57,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:57,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:57,591 INFO L87 Difference]: Start difference. First operand 63 states and 118 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 23:53:57,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:57,616 INFO L93 Difference]: Finished difference Result 94 states and 173 transitions. [2022-11-25 23:53:57,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:57,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2022-11-25 23:53:57,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:57,619 INFO L225 Difference]: With dead ends: 94 [2022-11-25 23:53:57,619 INFO L226 Difference]: Without dead ends: 94 [2022-11-25 23:53:57,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:57,621 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 71 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 224 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 [2022-11-25 23:53:57,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:53:57,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-25 23:53:57,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2022-11-25 23:53:57,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.89010989010989) internal successors, (172), 91 states have internal predecessors, (172), 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) [2022-11-25 23:53:57,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 172 transitions. [2022-11-25 23:53:57,636 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 172 transitions. Word has length 21 [2022-11-25 23:53:57,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:57,637 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 172 transitions. [2022-11-25 23:53:57,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 23:53:57,637 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2022-11-25 23:53:57,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 23:53:57,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:57,638 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] [2022-11-25 23:53:57,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-25 23:53:57,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:57,852 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 23:53:57,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:57,852 INFO L85 PathProgramCache]: Analyzing trace with hash -795404523, now seen corresponding path program 1 times [2022-11-25 23:53:57,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:53:57,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588370628] [2022-11-25 23:53:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:57,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:57,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:53:57,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:53:57,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 23:53:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:57,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:57,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:57,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:57,949 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:53:57,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588370628] [2022-11-25 23:53:57,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588370628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:57,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:57,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:53:57,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96534179] [2022-11-25 23:53:57,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:57,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:57,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:53:57,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:57,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:57,952 INFO L87 Difference]: Start difference. First operand 92 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 23:53:57,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:57,974 INFO L93 Difference]: Finished difference Result 96 states and 173 transitions. [2022-11-25 23:53:57,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:57,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2022-11-25 23:53:57,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:57,976 INFO L225 Difference]: With dead ends: 96 [2022-11-25 23:53:57,976 INFO L226 Difference]: Without dead ends: 96 [2022-11-25 23:53:57,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:57,978 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 69 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 198 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 [2022-11-25 23:53:57,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 198 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:53:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-25 23:53:57,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2022-11-25 23:53:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.8494623655913978) internal successors, (172), 93 states have internal predecessors, (172), 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) [2022-11-25 23:53:57,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2022-11-25 23:53:57,989 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 21 [2022-11-25 23:53:57,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:57,989 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2022-11-25 23:53:57,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 23:53:57,990 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2022-11-25 23:53:57,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 23:53:57,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:57,991 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] [2022-11-25 23:53:58,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:58,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:58,202 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 23:53:58,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:58,203 INFO L85 PathProgramCache]: Analyzing trace with hash -795397331, now seen corresponding path program 1 times [2022-11-25 23:53:58,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:53:58,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662428220] [2022-11-25 23:53:58,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:58,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:58,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:53:58,204 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:53:58,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-25 23:53:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:58,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:58,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:58,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:58,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:58,310 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:53:58,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662428220] [2022-11-25 23:53:58,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662428220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:58,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:58,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:53:58,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634881830] [2022-11-25 23:53:58,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:58,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:58,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:53:58,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:58,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:58,313 INFO L87 Difference]: Start difference. First operand 94 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 23:53:58,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:58,357 INFO L93 Difference]: Finished difference Result 127 states and 228 transitions. [2022-11-25 23:53:58,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:58,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2022-11-25 23:53:58,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:58,359 INFO L225 Difference]: With dead ends: 127 [2022-11-25 23:53:58,359 INFO L226 Difference]: Without dead ends: 127 [2022-11-25 23:53:58,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:58,361 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 70 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 125 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 [2022-11-25 23:53:58,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 125 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:53:58,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-25 23:53:58,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2022-11-25 23:53:58,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 124 states have internal predecessors, (227), 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) [2022-11-25 23:53:58,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 227 transitions. [2022-11-25 23:53:58,387 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 227 transitions. Word has length 21 [2022-11-25 23:53:58,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:58,387 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 227 transitions. [2022-11-25 23:53:58,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 23:53:58,387 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 227 transitions. [2022-11-25 23:53:58,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 23:53:58,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:58,388 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] [2022-11-25 23:53:58,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:58,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:58,589 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 23:53:58,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:58,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1816465685, now seen corresponding path program 1 times [2022-11-25 23:53:58,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:53:58,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343951077] [2022-11-25 23:53:58,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:58,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:58,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:53:58,595 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:53:58,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-25 23:53:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:53:58,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:53:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:53:58,706 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:53:58,706 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:53:58,707 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-11-25 23:53:58,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-11-25 23:53:58,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:58,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:53:58,924 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:53:58,927 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:53:58,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:53:58 BoogieIcfgContainer [2022-11-25 23:53:58,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:53:58,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:53:58,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:53:58,975 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:53:58,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:53:56" (3/4) ... [2022-11-25 23:53:58,984 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:53:58,984 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:53:58,986 INFO L158 Benchmark]: Toolchain (without parser) took 4149.71ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 54.4MB in the beginning and 56.5MB in the end (delta: -2.2MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-11-25 23:53:58,990 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 37.1MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:53:58,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.11ms. Allocated memory is still 75.5MB. Free memory was 54.2MB in the beginning and 42.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:53:58,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.63ms. Allocated memory is still 75.5MB. Free memory was 42.2MB in the beginning and 40.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:53:58,995 INFO L158 Benchmark]: Boogie Preprocessor took 57.73ms. Allocated memory is still 75.5MB. Free memory was 40.4MB in the beginning and 38.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:53:58,996 INFO L158 Benchmark]: RCFGBuilder took 721.61ms. Allocated memory is still 75.5MB. Free memory was 38.7MB in the beginning and 41.8MB in the end (delta: -3.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-11-25 23:53:58,996 INFO L158 Benchmark]: TraceAbstraction took 2966.60ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 57.0MB in the end (delta: -15.8MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2022-11-25 23:53:58,996 INFO L158 Benchmark]: Witness Printer took 9.59ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 56.5MB in the end (delta: 452.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:53:58,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 37.1MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.11ms. Allocated memory is still 75.5MB. Free memory was 54.2MB in the beginning and 42.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.63ms. Allocated memory is still 75.5MB. Free memory was 42.2MB in the beginning and 40.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.73ms. Allocated memory is still 75.5MB. Free memory was 40.4MB in the beginning and 38.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 721.61ms. Allocated memory is still 75.5MB. Free memory was 38.7MB in the beginning and 41.8MB in the end (delta: -3.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2966.60ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 57.0MB in the end (delta: -15.8MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 9.59ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 56.5MB in the end (delta: 452.1kB). 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: 219]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 219. 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; [L51] int cond; [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0] [L88] COND FALSE !(p1 != 0) VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0] [L92] COND FALSE !(p2 != 0) VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0] [L96] COND FALSE !(p3 != 0) VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=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] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=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] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=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] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=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] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=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] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=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] [L124] COND TRUE p10 != 0 [L125] lk10 = 1 VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=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] [L128] COND FALSE !(p11 != 0) VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=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] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=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] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=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] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=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, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L146] COND FALSE !(p1 != 0) VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=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, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L151] COND FALSE !(p2 != 0) VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=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, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L219] reach_error() VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=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, 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, 53 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 906 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 624 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, 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, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 239 SizeOfPredicates, 0 NumberOfNonLiveVariables, 275 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 [2022-11-25 23:53:59,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aedc05f-acec-44d0-b90c-2542ff0148aa/bin/utaipan-ByfvJB40ur/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