./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b 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_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9 --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 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b --- 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-6b4ec56 [2022-11-20 21:28:53,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:28:53,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:28:53,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:28:53,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:28:53,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:28:53,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:28:53,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:28:53,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:28:53,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:28:53,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:28:53,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:28:53,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:28:53,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:28:53,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:28:53,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:28:53,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:28:53,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:28:53,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:28:53,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:28:53,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:28:53,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:28:53,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:28:53,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:28:53,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:28:53,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:28:53,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:28:53,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:28:53,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:28:53,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:28:53,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:28:53,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:28:53,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:28:53,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:28:53,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:28:53,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:28:53,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:28:53,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:28:53,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:28:53,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:28:53,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:28:53,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-20 21:28:53,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:28:53,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:28:53,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:28:53,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:28:53,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:28:53,928 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:28:53,929 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:28:53,929 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:28:53,929 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:28:53,929 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:28:53,931 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:28:53,931 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:28:53,931 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:28:53,931 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:28:53,932 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:28:53,932 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:28:53,932 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:28:53,932 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:28:53,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 21:28:53,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 21:28:53,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:28:53,934 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:28:53,935 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 21:28:53,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:28:53,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:28:53,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:28:53,935 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 21:28:53,936 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 21:28:53,936 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 21:28:53,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:28:53,937 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 21:28:53,937 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:28:53,937 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:28:53,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:28:53,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:28:53,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:28:53,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:28:53,938 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:28:53,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:28:53,939 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:28:53,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:28:53,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:28:53,940 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_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b [2022-11-20 21:28:54,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:28:54,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:28:54,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:28:54,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:28:54,241 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:28:54,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2022-11-20 21:28:57,394 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:28:57,696 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:28:57,696 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2022-11-20 21:28:57,710 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/data/838155c7f/cd753c9ecbcb43d586d2711332ea914c/FLAG7f0dc4b69 [2022-11-20 21:28:57,725 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/data/838155c7f/cd753c9ecbcb43d586d2711332ea914c [2022-11-20 21:28:57,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:28:57,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:28:57,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:28:57,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:28:57,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:28:57,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:57" (1/1) ... [2022-11-20 21:28:57,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c2c276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:57, skipping insertion in model container [2022-11-20 21:28:57,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:57" (1/1) ... [2022-11-20 21:28:57,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:28:57,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:28:58,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:28:58,357 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:28:58,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:28:58,491 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:28:58,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58 WrapperNode [2022-11-20 21:28:58,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:28:58,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:28:58,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:28:58,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:28:58,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (1/1) ... [2022-11-20 21:28:58,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (1/1) ... [2022-11-20 21:28:58,539 INFO L138 Inliner]: procedures = 266, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-11-20 21:28:58,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:28:58,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:28:58,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:28:58,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:28:58,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (1/1) ... [2022-11-20 21:28:58,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (1/1) ... [2022-11-20 21:28:58,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (1/1) ... [2022-11-20 21:28:58,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (1/1) ... [2022-11-20 21:28:58,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (1/1) ... [2022-11-20 21:28:58,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (1/1) ... [2022-11-20 21:28:58,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (1/1) ... [2022-11-20 21:28:58,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (1/1) ... [2022-11-20 21:28:58,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:28:58,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:28:58,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:28:58,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:28:58,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (1/1) ... [2022-11-20 21:28:58,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:28:58,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:28:58,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:28:58,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:28:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:28:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:28:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 21:28:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 21:28:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:28:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 21:28:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 21:28:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:28:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:28:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:28:58,688 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 21:28:58,876 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:28:58,878 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:28:59,037 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:28:59,044 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:28:59,044 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 21:28:59,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:59 BoogieIcfgContainer [2022-11-20 21:28:59,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:28:59,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:28:59,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:28:59,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:28:59,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:28:57" (1/3) ... [2022-11-20 21:28:59,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1de2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:59, skipping insertion in model container [2022-11-20 21:28:59,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:58" (2/3) ... [2022-11-20 21:28:59,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1de2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:59, skipping insertion in model container [2022-11-20 21:28:59,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:59" (3/3) ... [2022-11-20 21:28:59,057 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2022-11-20 21:28:59,078 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:28:59,079 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 21:28:59,079 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 21:28:59,133 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 21:28:59,192 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 21:28:59,214 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 63 transitions, 131 flow [2022-11-20 21:28:59,219 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 63 transitions, 131 flow [2022-11-20 21:28:59,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 131 flow [2022-11-20 21:28:59,285 INFO L130 PetriNetUnfolder]: 3/62 cut-off events. [2022-11-20 21:28:59,291 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 21:28:59,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2022-11-20 21:28:59,300 INFO L119 LiptonReduction]: Number of co-enabled transitions 468 [2022-11-20 21:29:01,812 INFO L134 LiptonReduction]: Checked pairs total: 778 [2022-11-20 21:29:01,812 INFO L136 LiptonReduction]: Total number of compositions: 63 [2022-11-20 21:29:01,822 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 16 transitions, 37 flow [2022-11-20 21:29:01,842 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 34 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 33 states have internal predecessors, (58), 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) [2022-11-20 21:29:01,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:29:01,871 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;@6764f477, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:29:01,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 21:29:01,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 33 states have internal predecessors, (58), 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) [2022-11-20 21:29:01,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 21:29:01,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:29:01,880 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 21:29:01,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2022-11-20 21:29:01,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:29:01,890 INFO L85 PathProgramCache]: Analyzing trace with hash 241, now seen corresponding path program 1 times [2022-11-20 21:29:01,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:29:01,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029167738] [2022-11-20 21:29:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:29:01,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:29:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:29:02,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:29:02,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:29:02,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029167738] [2022-11-20 21:29:02,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029167738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:29:02,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:29:02,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 21:29:02,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755814611] [2022-11-20 21:29:02,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:29:02,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 21:29:02,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:29:02,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 21:29:02,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 21:29:02,040 INFO L87 Difference]: Start difference. First operand has 34 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 33 states have internal predecessors, (58), 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) [2022-11-20 21:29:02,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:29:02,074 INFO L93 Difference]: Finished difference Result 32 states and 56 transitions. [2022-11-20 21:29:02,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 21:29:02,077 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 [2022-11-20 21:29:02,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:29:02,084 INFO L225 Difference]: With dead ends: 32 [2022-11-20 21:29:02,085 INFO L226 Difference]: Without dead ends: 32 [2022-11-20 21:29:02,086 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 [2022-11-20 21:29:02,090 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 [2022-11-20 21:29:02,092 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] [2022-11-20 21:29:02,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-20 21:29:02,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-20 21:29:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 31 states have internal predecessors, (56), 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) [2022-11-20 21:29:02,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 56 transitions. [2022-11-20 21:29:02,129 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 56 transitions. Word has length 1 [2022-11-20 21:29:02,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:29:02,130 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 56 transitions. [2022-11-20 21:29:02,134 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) [2022-11-20 21:29:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 56 transitions. [2022-11-20 21:29:02,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 21:29:02,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:29:02,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 21:29:02,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:29:02,137 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2022-11-20 21:29:02,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:29:02,139 INFO L85 PathProgramCache]: Analyzing trace with hash 7298625, now seen corresponding path program 1 times [2022-11-20 21:29:02,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:29:02,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397180687] [2022-11-20 21:29:02,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:29:02,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:29:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:29:02,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:29:02,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:29:02,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397180687] [2022-11-20 21:29:02,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397180687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:29:02,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:29:02,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:29:02,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982854972] [2022-11-20 21:29:02,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:29:02,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:29:02,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:29:02,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:29:02,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:29:02,426 INFO L87 Difference]: Start difference. First operand 32 states and 56 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-11-20 21:29:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:29:02,469 INFO L93 Difference]: Finished difference Result 27 states and 47 transitions. [2022-11-20 21:29:02,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:29:02,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 [2022-11-20 21:29:02,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:29:02,475 INFO L225 Difference]: With dead ends: 27 [2022-11-20 21:29:02,475 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 21:29:02,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:29:02,477 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:29:02,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:29:02,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 21:29:02,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 21:29:02,480 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) [2022-11-20 21:29:02,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 21:29:02,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-11-20 21:29:02,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:29:02,481 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 21:29:02,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-11-20 21:29:02,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 21:29:02,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 21:29:02,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2022-11-20 21:29:02,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2022-11-20 21:29:02,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2022-11-20 21:29:02,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-20 21:29:02,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 21:29:02,488 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 21:29:02,491 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 21:29:02,491 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:29:02,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:29:02 BasicIcfg [2022-11-20 21:29:02,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:29:02,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:29:02,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:29:02,496 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:29:02,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:59" (3/4) ... [2022-11-20 21:29:02,500 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 21:29:02,507 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 21:29:02,512 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-20 21:29:02,513 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 21:29:02,513 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 21:29:02,566 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 21:29:02,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:29:02,567 INFO L158 Benchmark]: Toolchain (without parser) took 4837.74ms. Allocated memory is still 195.0MB. Free memory was 148.0MB in the beginning and 92.5MB in the end (delta: 55.5MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2022-11-20 21:29:02,568 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:29:02,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 761.15ms. Allocated memory is still 195.0MB. Free memory was 148.0MB in the beginning and 120.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-20 21:29:02,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.00ms. Allocated memory is still 195.0MB. Free memory was 120.8MB in the beginning and 118.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:29:02,569 INFO L158 Benchmark]: Boogie Preprocessor took 56.80ms. Allocated memory is still 195.0MB. Free memory was 118.7MB in the beginning and 117.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:29:02,569 INFO L158 Benchmark]: RCFGBuilder took 448.37ms. Allocated memory is still 195.0MB. Free memory was 117.2MB in the beginning and 105.2MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 21:29:02,570 INFO L158 Benchmark]: TraceAbstraction took 3445.10ms. Allocated memory is still 195.0MB. Free memory was 104.6MB in the beginning and 95.6MB in the end (delta: 8.9MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-11-20 21:29:02,570 INFO L158 Benchmark]: Witness Printer took 71.76ms. Allocated memory is still 195.0MB. Free memory was 95.6MB in the beginning and 92.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 21:29:02,573 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 761.15ms. Allocated memory is still 195.0MB. Free memory was 148.0MB in the beginning and 120.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.00ms. Allocated memory is still 195.0MB. Free memory was 120.8MB in the beginning and 118.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.80ms. Allocated memory is still 195.0MB. Free memory was 118.7MB in the beginning and 117.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 448.37ms. Allocated memory is still 195.0MB. Free memory was 117.2MB in the beginning and 105.2MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3445.10ms. Allocated memory is still 195.0MB. Free memory was 104.6MB in the beginning and 95.6MB in the end (delta: 8.9MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Witness Printer took 71.76ms. Allocated memory is still 195.0MB. Free memory was 95.6MB in the beginning and 92.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 64 PlacesBefore, 19 PlacesAfterwards, 63 TransitionsBefore, 16 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 5 FixpointIterations, 31 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 778 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 567, independent: 509, independent conditional: 0, independent unconditional: 509, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 359, independent: 339, independent conditional: 0, independent unconditional: 339, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 359, independent: 330, independent conditional: 0, independent unconditional: 330, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 29, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 164, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 567, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 359, unknown conditional: 0, unknown unconditional: 359] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, 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: 936]: 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, 72 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 1 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 21:29:02,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f8d0744-3d35-4dc1-a17e-34ec5d137989/bin/utaipan-6cKwYrpEi9/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