./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_11-traces-max-simple_true.i --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_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/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_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_11-traces-max-simple_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/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_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/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 6ec45a8cc5eb531168b9afc45cc8af1360572640b5394bd745e0b1188f31bc79 --- 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 [2022-11-26 00:09:26,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:09:26,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:09:26,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:09:26,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:09:26,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:09:26,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:09:26,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:09:26,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:09:26,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:09:26,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:09:26,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:09:26,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:09:26,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:09:26,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:09:26,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:09:26,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:09:26,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:09:26,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:09:26,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:09:26,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:09:26,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:09:26,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:09:26,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:09:26,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:09:26,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:09:26,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:09:26,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:09:26,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:09:26,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:09:26,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:09:26,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:09:26,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:09:26,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:09:26,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:09:26,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:09:26,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:09:26,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:09:26,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:09:26,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:09:26,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:09:26,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-26 00:09:26,921 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:09:26,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:09:26,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:09:26,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:09:26,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:09:26,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:09:26,924 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:09:26,924 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:09:26,924 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:09:26,925 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:09:26,926 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:09:26,926 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:09:26,927 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:09:26,927 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:09:26,927 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:09:26,927 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:09:26,928 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:09:26,928 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:09:26,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:09:26,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:09:26,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:09:26,929 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:09:26,930 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:09:26,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:09:26,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:09:26,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:09:26,931 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:09:26,931 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:09:26,931 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:09:26,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:09:26,932 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:09:26,932 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:09:26,932 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:09:26,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:09:26,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:09:26,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:09:26,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:09:26,934 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:09:26,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:09:26,934 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:09:26,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:09:26,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:09:26,935 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_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ec45a8cc5eb531168b9afc45cc8af1360572640b5394bd745e0b1188f31bc79 [2022-11-26 00:09:27,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:09:27,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:09:27,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:09:27,308 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:09:27,309 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:09:27,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/36-apron_11-traces-max-simple_true.i [2022-11-26 00:09:30,405 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:09:30,702 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:09:30,702 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/sv-benchmarks/c/goblint-regression/36-apron_11-traces-max-simple_true.i [2022-11-26 00:09:30,718 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur/data/d6b5a267b/029e0d8a1f684553924d7c4b21939548/FLAG8cf8900c7 [2022-11-26 00:09:30,735 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur/data/d6b5a267b/029e0d8a1f684553924d7c4b21939548 [2022-11-26 00:09:30,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:09:30,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:09:30,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:09:30,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:09:30,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:09:30,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:09:30" (1/1) ... [2022-11-26 00:09:30,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d2a166f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:30, skipping insertion in model container [2022-11-26 00:09:30,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:09:30" (1/1) ... [2022-11-26 00:09:30,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:09:30,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:09:31,068 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_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/sv-benchmarks/c/goblint-regression/36-apron_11-traces-max-simple_true.i[1089,1102] [2022-11-26 00:09:31,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:09:31,246 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:09:31,261 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_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/sv-benchmarks/c/goblint-regression/36-apron_11-traces-max-simple_true.i[1089,1102] [2022-11-26 00:09:31,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:09:31,349 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:09:31,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31 WrapperNode [2022-11-26 00:09:31,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:09:31,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:09:31,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:09:31,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:09:31,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (1/1) ... [2022-11-26 00:09:31,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (1/1) ... [2022-11-26 00:09:31,432 INFO L138 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-11-26 00:09:31,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:09:31,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:09:31,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:09:31,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:09:31,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (1/1) ... [2022-11-26 00:09:31,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (1/1) ... [2022-11-26 00:09:31,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (1/1) ... [2022-11-26 00:09:31,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (1/1) ... [2022-11-26 00:09:31,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (1/1) ... [2022-11-26 00:09:31,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (1/1) ... [2022-11-26 00:09:31,483 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (1/1) ... [2022-11-26 00:09:31,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (1/1) ... [2022-11-26 00:09:31,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:09:31,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:09:31,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:09:31,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:09:31,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (1/1) ... [2022-11-26 00:09:31,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:09:31,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:09:31,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:09:31,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:09:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:09:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:09:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:09:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:09:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 00:09:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 00:09:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:09:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:09:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:09:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:09:31,579 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:09:31,797 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:09:31,799 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:09:32,030 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:09:32,037 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:09:32,038 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:09:32,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:09:32 BoogieIcfgContainer [2022-11-26 00:09:32,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:09:32,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:09:32,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:09:32,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:09:32,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:09:30" (1/3) ... [2022-11-26 00:09:32,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1650722a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:09:32, skipping insertion in model container [2022-11-26 00:09:32,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:09:31" (2/3) ... [2022-11-26 00:09:32,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1650722a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:09:32, skipping insertion in model container [2022-11-26 00:09:32,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:09:32" (3/3) ... [2022-11-26 00:09:32,050 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_11-traces-max-simple_true.i [2022-11-26 00:09:32,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:09:32,070 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-26 00:09:32,071 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:09:32,121 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:09:32,177 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:09:32,196 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 74 transitions, 153 flow [2022-11-26 00:09:32,205 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 74 transitions, 153 flow [2022-11-26 00:09:32,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 74 transitions, 153 flow [2022-11-26 00:09:32,257 INFO L130 PetriNetUnfolder]: 2/73 cut-off events. [2022-11-26 00:09:32,257 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:09:32,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 61 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2022-11-26 00:09:32,264 INFO L119 LiptonReduction]: Number of co-enabled transitions 884 [2022-11-26 00:09:35,307 INFO L134 LiptonReduction]: Checked pairs total: 1227 [2022-11-26 00:09:35,307 INFO L136 LiptonReduction]: Total number of compositions: 77 [2022-11-26 00:09:35,317 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 17 transitions, 39 flow [2022-11-26 00:09:35,332 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 42 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 41 states have internal predecessors, (72), 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) [2022-11-26 00:09:35,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:09:35,359 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;@5a2067ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:09:35,360 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-26 00:09:35,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 41 states have internal predecessors, (72), 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) [2022-11-26 00:09:35,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:09:35,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:35,368 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:09:35,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-26 00:09:35,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:35,375 INFO L85 PathProgramCache]: Analyzing trace with hash 281, now seen corresponding path program 1 times [2022-11-26 00:09:35,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:35,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161364617] [2022-11-26 00:09:35,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:35,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:35,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:09:35,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:35,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161364617] [2022-11-26 00:09:35,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161364617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:09:35,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:09:35,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:09:35,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852251573] [2022-11-26 00:09:35,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:35,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:09:35,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:35,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:09:35,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:09:35,548 INFO L87 Difference]: Start difference. First operand has 42 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 41 states have internal predecessors, (72), 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, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-26 00:09:35,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:35,596 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2022-11-26 00:09:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:09:35,600 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-26 00:09:35,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:35,609 INFO L225 Difference]: With dead ends: 32 [2022-11-26 00:09:35,609 INFO L226 Difference]: Without dead ends: 30 [2022-11-26 00:09:35,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:09:35,618 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:35,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:09:35,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-26 00:09:35,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-26 00:09:35,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 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) [2022-11-26 00:09:35,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 47 transitions. [2022-11-26 00:09:35,666 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 47 transitions. Word has length 1 [2022-11-26 00:09:35,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:35,667 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 47 transitions. [2022-11-26 00:09:35,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-26 00:09:35,669 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2022-11-26 00:09:35,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:09:35,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:35,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:09:35,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:09:35,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-26 00:09:35,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:35,673 INFO L85 PathProgramCache]: Analyzing trace with hash 265899235, now seen corresponding path program 1 times [2022-11-26 00:09:35,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:35,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872534697] [2022-11-26 00:09:35,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:35,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:09:36,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:36,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872534697] [2022-11-26 00:09:36,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872534697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:09:36,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:09:36,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:09:36,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630053948] [2022-11-26 00:09:36,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:36,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:09:36,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:36,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:09:36,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:09:36,020 INFO L87 Difference]: Start difference. First operand 30 states and 47 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-26 00:09:36,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:36,055 INFO L93 Difference]: Finished difference Result 36 states and 53 transitions. [2022-11-26 00:09:36,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:09:36,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-11-26 00:09:36,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:36,057 INFO L225 Difference]: With dead ends: 36 [2022-11-26 00:09:36,057 INFO L226 Difference]: Without dead ends: 36 [2022-11-26 00:09:36,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:09:36,059 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:36,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:09:36,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-26 00:09:36,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2022-11-26 00:09:36,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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) [2022-11-26 00:09:36,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 46 transitions. [2022-11-26 00:09:36,067 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 46 transitions. Word has length 5 [2022-11-26 00:09:36,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:36,067 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 46 transitions. [2022-11-26 00:09:36,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-26 00:09:36,068 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2022-11-26 00:09:36,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:09:36,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:36,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:09:36,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:09:36,070 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-26 00:09:36,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:36,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2127806925, now seen corresponding path program 1 times [2022-11-26 00:09:36,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:36,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754436665] [2022-11-26 00:09:36,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:36,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:36,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:09:36,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:36,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754436665] [2022-11-26 00:09:36,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754436665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:09:36,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:09:36,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:09:36,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530873672] [2022-11-26 00:09:36,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:36,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:09:36,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:36,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:09:36,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:09:36,175 INFO L87 Difference]: Start difference. First operand 30 states and 46 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-26 00:09:36,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:36,196 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2022-11-26 00:09:36,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:09:36,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-26 00:09:36,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:36,197 INFO L225 Difference]: With dead ends: 20 [2022-11-26 00:09:36,198 INFO L226 Difference]: Without dead ends: 20 [2022-11-26 00:09:36,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:09:36,199 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:36,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:09:36,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-26 00:09:36,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-26 00:09:36,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:09:36,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-11-26 00:09:36,204 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 7 [2022-11-26 00:09:36,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:36,205 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-26 00:09:36,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-26 00:09:36,206 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-11-26 00:09:36,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:09:36,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:36,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:09:36,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:09:36,207 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-26 00:09:36,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:36,208 INFO L85 PathProgramCache]: Analyzing trace with hash 2126077671, now seen corresponding path program 1 times [2022-11-26 00:09:36,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:36,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351437518] [2022-11-26 00:09:36,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:36,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:36,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:09:36,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:36,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351437518] [2022-11-26 00:09:36,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351437518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:09:36,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:09:36,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:09:36,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850503159] [2022-11-26 00:09:36,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:36,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:09:36,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:36,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:09:36,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:09:36,401 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-26 00:09:36,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:36,421 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-26 00:09:36,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:09:36,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-26 00:09:36,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:36,423 INFO L225 Difference]: With dead ends: 16 [2022-11-26 00:09:36,423 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:09:36,424 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 [2022-11-26 00:09:36,428 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:36,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:09:36,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:09:36,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:09:36,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:09:36,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:09:36,432 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2022-11-26 00:09:36,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:36,433 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:09:36,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-26 00:09:36,433 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:09:36,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:09:36,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 7 remaining) [2022-11-26 00:09:36,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-26 00:09:36,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2022-11-26 00:09:36,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (3 of 7 remaining) [2022-11-26 00:09:36,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-11-26 00:09:36,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-26 00:09:36,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-26 00:09:36,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:09:36,444 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-26 00:09:36,449 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:09:36,450 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:09:36,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:09:36 BasicIcfg [2022-11-26 00:09:36,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:09:36,460 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:09:36,461 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:09:36,461 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:09:36,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:09:32" (3/4) ... [2022-11-26 00:09:36,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:09:36,474 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-26 00:09:36,478 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-26 00:09:36,478 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-26 00:09:36,478 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-26 00:09:36,479 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:09:36,513 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:09:36,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:09:36,514 INFO L158 Benchmark]: Toolchain (without parser) took 5773.72ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 142.7MB in the beginning and 85.1MB in the end (delta: 57.6MB). Peak memory consumption was 93.1MB. Max. memory is 16.1GB. [2022-11-26 00:09:36,514 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:09:36,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.80ms. Allocated memory is still 176.2MB. Free memory was 142.7MB in the beginning and 133.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-26 00:09:36,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.80ms. Allocated memory is still 176.2MB. Free memory was 133.5MB in the beginning and 131.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:09:36,515 INFO L158 Benchmark]: Boogie Preprocessor took 61.56ms. Allocated memory is still 176.2MB. Free memory was 131.4MB in the beginning and 129.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:09:36,515 INFO L158 Benchmark]: RCFGBuilder took 544.27ms. Allocated memory is still 176.2MB. Free memory was 129.5MB in the beginning and 117.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:09:36,516 INFO L158 Benchmark]: TraceAbstraction took 4416.86ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 115.8MB in the beginning and 88.2MB in the end (delta: 27.6MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2022-11-26 00:09:36,516 INFO L158 Benchmark]: Witness Printer took 53.42ms. Allocated memory is still 211.8MB. Free memory was 88.2MB in the beginning and 85.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:09:36,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.80ms. Allocated memory is still 176.2MB. Free memory was 142.7MB in the beginning and 133.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.80ms. Allocated memory is still 176.2MB. Free memory was 133.5MB in the beginning and 131.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.56ms. Allocated memory is still 176.2MB. Free memory was 131.4MB in the beginning and 129.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 544.27ms. Allocated memory is still 176.2MB. Free memory was 129.5MB in the beginning and 117.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4416.86ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 115.8MB in the beginning and 88.2MB in the end (delta: 27.6MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. * Witness Printer took 53.42ms. Allocated memory is still 211.8MB. Free memory was 88.2MB in the beginning and 85.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 76 PlacesBefore, 20 PlacesAfterwards, 74 TransitionsBefore, 17 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 7 FixpointIterations, 30 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 1227 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 939, independent: 862, independent conditional: 0, independent unconditional: 862, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 641, independent: 619, independent conditional: 0, independent unconditional: 619, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 641, independent: 605, independent conditional: 0, independent unconditional: 605, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 90, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 939, independent: 243, independent conditional: 0, independent unconditional: 243, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 641, unknown conditional: 0, unknown unconditional: 641] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 690]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 4 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-26 00:09:36,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d14ed2-ad4c-4575-b21e-da6d8fa3c63a/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: TRUE