./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:16:31,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:16:31,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:16:32,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:16:32,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:16:32,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:16:32,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:16:32,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:16:32,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:16:32,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:16:32,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:16:32,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:16:32,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:16:32,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:16:32,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:16:32,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:16:32,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:16:32,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:16:32,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:16:32,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:16:32,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:16:32,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:16:32,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:16:32,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:16:32,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:16:32,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:16:32,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:16:32,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:16:32,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:16:32,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:16:32,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:16:32,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:16:32,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:16:32,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:16:32,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:16:32,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:16:32,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:16:32,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:16:32,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:16:32,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:16:32,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:16:32,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:16:32,135 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:16:32,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:16:32,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:16:32,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:16:32,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:16:32,141 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:16:32,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:16:32,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:16:32,143 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:16:32,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:16:32,144 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:16:32,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:16:32,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:16:32,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:16:32,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:16:32,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:16:32,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:16:32,146 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:16:32,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:16:32,146 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:16:32,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:16:32,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:16:32,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:16:32,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:16:32,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:16:32,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:16:32,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:16:32,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:16:32,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:16:32,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:16:32,149 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:16:32,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:16:32,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:16:32,150 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_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 [2022-11-02 20:16:32,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:16:32,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:16:32,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:16:32,595 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:16:32,596 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:16:32,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-11-02 20:16:32,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/data/0368f0462/ade21ecdc6524fae8bffbd389e8beb4a/FLAG5821f9a31 [2022-11-02 20:16:33,444 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:16:33,445 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-11-02 20:16:33,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/data/0368f0462/ade21ecdc6524fae8bffbd389e8beb4a/FLAG5821f9a31 [2022-11-02 20:16:33,681 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/data/0368f0462/ade21ecdc6524fae8bffbd389e8beb4a [2022-11-02 20:16:33,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:16:33,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:16:33,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:33,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:16:33,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:16:33,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c0eb7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33, skipping insertion in model container [2022-11-02 20:16:33,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:16:33,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:16:34,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2022-11-02 20:16:34,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:34,551 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:16:34,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2022-11-02 20:16:34,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:34,724 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:16:34,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34 WrapperNode [2022-11-02 20:16:34,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:34,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:34,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:16:34,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:16:34,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (1/1) ... [2022-11-02 20:16:34,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (1/1) ... [2022-11-02 20:16:34,857 INFO L138 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-11-02 20:16:34,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:34,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:16:34,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:16:34,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:16:34,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (1/1) ... [2022-11-02 20:16:34,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (1/1) ... [2022-11-02 20:16:34,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (1/1) ... [2022-11-02 20:16:34,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (1/1) ... [2022-11-02 20:16:34,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (1/1) ... [2022-11-02 20:16:34,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (1/1) ... [2022-11-02 20:16:34,917 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (1/1) ... [2022-11-02 20:16:34,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (1/1) ... [2022-11-02 20:16:34,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:16:34,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:16:34,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:16:34,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:16:34,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (1/1) ... [2022-11-02 20:16:34,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:16:34,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:34,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:34,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:16:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-02 20:16:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-11-02 20:16:35,035 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-11-02 20:16:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-11-02 20:16:35,036 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-11-02 20:16:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:16:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:16:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:16:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:16:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:16:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:16:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:16:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:16:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:16:35,040 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:16:35,465 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:16:35,479 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:16:35,738 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:16:35,747 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:16:35,748 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:16:35,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:35 BoogieIcfgContainer [2022-11-02 20:16:35,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:16:35,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:16:35,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:16:35,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:16:35,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:16:33" (1/3) ... [2022-11-02 20:16:35,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35461ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:16:35, skipping insertion in model container [2022-11-02 20:16:35,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:34" (2/3) ... [2022-11-02 20:16:35,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35461ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:16:35, skipping insertion in model container [2022-11-02 20:16:35,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:35" (3/3) ... [2022-11-02 20:16:35,762 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i [2022-11-02 20:16:35,773 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:16:35,786 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:16:35,787 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:16:35,787 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:16:35,853 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:16:35,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 95 transitions, 206 flow [2022-11-02 20:16:35,954 INFO L130 PetriNetUnfolder]: 1/93 cut-off events. [2022-11-02 20:16:35,954 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:16:35,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 93 events. 1/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2022-11-02 20:16:35,959 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 95 transitions, 206 flow [2022-11-02 20:16:35,964 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 71 transitions, 148 flow [2022-11-02 20:16:36,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:16:36,048 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@ad3801a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:16:36,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-02 20:16:36,117 INFO L130 PetriNetUnfolder]: 0/68 cut-off events. [2022-11-02 20:16:36,118 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:16:36,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:36,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:36,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 20:16:36,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:36,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1366006769, now seen corresponding path program 1 times [2022-11-02 20:16:36,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:36,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685251229] [2022-11-02 20:16:36,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:36,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:37,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:37,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:37,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685251229] [2022-11-02 20:16:37,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685251229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:37,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:37,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:16:37,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194247298] [2022-11-02 20:16:37,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:37,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:16:37,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:37,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:16:37,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:16:37,124 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 95 [2022-11-02 20:16:37,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 71 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:37,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 95 [2022-11-02 20:16:37,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:37,344 INFO L130 PetriNetUnfolder]: 6/114 cut-off events. [2022-11-02 20:16:37,347 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:16:37,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 114 events. 6/114 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 219 event pairs, 0 based on Foata normal form. 4/118 useless extension candidates. Maximal degree in co-relation 112. Up to 10 conditions per place. [2022-11-02 20:16:37,351 INFO L137 encePairwiseOnDemand]: 90/95 looper letters, 8 selfloop transitions, 2 changer transitions 10/82 dead transitions. [2022-11-02 20:16:37,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 82 transitions, 219 flow [2022-11-02 20:16:37,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:16:37,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-02 20:16:37,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 582 transitions. [2022-11-02 20:16:37,371 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8751879699248121 [2022-11-02 20:16:37,372 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 582 transitions. [2022-11-02 20:16:37,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 582 transitions. [2022-11-02 20:16:37,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:37,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 582 transitions. [2022-11-02 20:16:37,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 95.0) internal successors, (760), 8 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,397 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 95.0) internal successors, (760), 8 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,400 INFO L175 Difference]: Start difference. First operand has 78 places, 71 transitions, 148 flow. Second operand 7 states and 582 transitions. [2022-11-02 20:16:37,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 82 transitions, 219 flow [2022-11-02 20:16:37,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 82 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:16:37,410 INFO L231 Difference]: Finished difference. Result has 87 places, 71 transitions, 162 flow [2022-11-02 20:16:37,413 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=162, PETRI_PLACES=87, PETRI_TRANSITIONS=71} [2022-11-02 20:16:37,417 INFO L287 CegarLoopForPetriNet]: 78 programPoint places, 9 predicate places. [2022-11-02 20:16:37,418 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 71 transitions, 162 flow [2022-11-02 20:16:37,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:37,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:37,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:16:37,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 20:16:37,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:37,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1416224719, now seen corresponding path program 1 times [2022-11-02 20:16:37,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:37,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479834605] [2022-11-02 20:16:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:37,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:37,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:37,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:37,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479834605] [2022-11-02 20:16:37,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479834605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:37,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:37,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:37,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408168766] [2022-11-02 20:16:37,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:37,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:16:37,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:37,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:37,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:37,764 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2022-11-02 20:16:37,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 71 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:16:37,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2022-11-02 20:16:37,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:16:37,847 INFO L130 PetriNetUnfolder]: 3/88 cut-off events. [2022-11-02 20:16:37,847 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:16:37,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 88 events. 3/88 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 1 based on Foata normal form. 4/90 useless extension candidates. Maximal degree in co-relation 123. Up to 13 conditions per place. [2022-11-02 20:16:37,849 INFO L137 encePairwiseOnDemand]: 90/95 looper letters, 9 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2022-11-02 20:16:37,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 72 transitions, 194 flow [2022-11-02 20:16:37,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:37,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:16:37,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2022-11-02 20:16:37,851 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8701754385964913 [2022-11-02 20:16:37,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2022-11-02 20:16:37,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2022-11-02 20:16:37,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:37,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2022-11-02 20:16:37,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,857 INFO L175 Difference]: Start difference. First operand has 87 places, 71 transitions, 162 flow. Second operand 3 states and 248 transitions. [2022-11-02 20:16:37,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 72 transitions, 194 flow [2022-11-02 20:16:37,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 72 transitions, 184 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-11-02 20:16:37,861 INFO L231 Difference]: Finished difference. Result has 80 places, 71 transitions, 162 flow [2022-11-02 20:16:37,861 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=80, PETRI_TRANSITIONS=71} [2022-11-02 20:16:37,862 INFO L287 CegarLoopForPetriNet]: 78 programPoint places, 2 predicate places. [2022-11-02 20:16:37,863 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 71 transitions, 162 flow [2022-11-02 20:16:37,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:16:37,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:37,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:16:37,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 20:16:37,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:37,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1264517384, now seen corresponding path program 1 times [2022-11-02 20:16:37,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:37,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526565919] [2022-11-02 20:16:37,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:37,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:37,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:38,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:38,010 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:16:38,012 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-02 20:16:38,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-02 20:16:38,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-02 20:16:38,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-02 20:16:38,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:16:38,017 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-02 20:16:38,025 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:16:38,025 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:16:38,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:16:38 BasicIcfg [2022-11-02 20:16:38,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:16:38,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:16:38,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:16:38,113 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:16:38,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:35" (3/4) ... [2022-11-02 20:16:38,116 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-02 20:16:38,203 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:16:38,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:16:38,205 INFO L158 Benchmark]: Toolchain (without parser) took 4518.10ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 98.6MB in the beginning and 124.6MB in the end (delta: -25.9MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-11-02 20:16:38,206 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 29.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:16:38,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1032.00ms. Allocated memory is still 134.2MB. Free memory was 98.6MB in the beginning and 83.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 20:16:38,207 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.20ms. Allocated memory is still 134.2MB. Free memory was 83.3MB in the beginning and 80.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:16:38,207 INFO L158 Benchmark]: Boogie Preprocessor took 66.39ms. Allocated memory is still 134.2MB. Free memory was 80.5MB in the beginning and 78.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:16:38,208 INFO L158 Benchmark]: RCFGBuilder took 813.98ms. Allocated memory is still 134.2MB. Free memory was 78.4MB in the beginning and 59.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-02 20:16:38,209 INFO L158 Benchmark]: TraceAbstraction took 2356.04ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 58.6MB in the beginning and 132.9MB in the end (delta: -74.4MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2022-11-02 20:16:38,210 INFO L158 Benchmark]: Witness Printer took 94.38ms. Allocated memory is still 172.0MB. Free memory was 132.9MB in the beginning and 124.6MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 20:16:38,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 29.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1032.00ms. Allocated memory is still 134.2MB. Free memory was 98.6MB in the beginning and 83.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.20ms. Allocated memory is still 134.2MB. Free memory was 83.3MB in the beginning and 80.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.39ms. Allocated memory is still 134.2MB. Free memory was 80.5MB in the beginning and 78.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 813.98ms. Allocated memory is still 134.2MB. Free memory was 78.4MB in the beginning and 59.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2356.04ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 58.6MB in the beginning and 132.9MB in the end (delta: -74.4MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Witness Printer took 94.38ms. Allocated memory is still 172.0MB. Free memory was 132.9MB in the beginning and 124.6MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; VAL [g=0] [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [g=0, mut={4:0}] [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [cond={5:0}, g=0, mut={4:0}] [L1373] 0 pthread_t t1; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, t1={7:0}] [L1374] 0 pthread_t t2; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, t1={7:0}, t2={6:0}] [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, t1={7:0}, t2={6:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, t1={7:0}, t2={6:0}] [L1356] 1 g = 1 VAL [cond={5:0}, g=1, mut={4:0}, ptr={0:0}, ptr={0:0}, ptr={0:0}, ptr={0:0}] [L1366] 2 g = 0 VAL [cond={5:0}, g=0, mut={4:0}, ptr={0:0}, ptr={0:0}] [L1358] CALL 1 __VERIFIER_assert(g == 1) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond={5:0}, cond=0, g=0, mut={4:0}, ptr={0:0}, ptr={0:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, cond={5:0}, g=0, mut={4:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1377]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1375]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 127 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 17 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=1, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 207 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-02 20:16:38,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae9c840-74ea-44e8-98be-c75f0b190614/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE