./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 78eedbb170ccb94e306b53f35c5dd71f86d003c1abe4d157fc2c720e38b8df88 --- 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-4e7fbc6 [2022-11-23 14:11:04,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:11:04,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:11:04,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:11:04,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:11:04,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:11:04,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:11:04,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:11:04,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:11:04,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:11:04,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:11:04,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:11:04,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:11:04,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:11:04,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:11:04,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:11:04,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:11:04,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:11:04,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:11:04,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:11:04,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:11:04,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:11:04,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:11:04,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:11:04,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:11:04,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:11:04,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:11:04,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:11:04,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:11:04,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:11:04,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:11:04,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:11:04,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:11:04,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:11:04,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:11:04,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:11:04,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:11:04,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:11:04,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:11:04,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:11:04,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:11:04,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:11:04,825 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:11:04,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:11:04,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:11:04,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:11:04,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:11:04,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:11:04,828 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:11:04,828 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:11:04,828 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:11:04,828 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:11:04,829 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:11:04,829 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:11:04,830 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:11:04,830 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:11:04,830 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:11:04,830 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:11:04,831 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:11:04,831 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:11:04,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:11:04,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:11:04,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:11:04,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:11:04,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:11:04,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:11:04,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:11:04,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:11:04,834 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:11:04,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:11:04,834 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:11:04,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:11:04,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:11:04,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:11:04,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:11:04,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:11:04,835 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:11:04,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:11:04,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:11:04,836 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:11:04,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:11:04,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:11:04,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:11:04,838 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_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78eedbb170ccb94e306b53f35c5dd71f86d003c1abe4d157fc2c720e38b8df88 [2022-11-23 14:11:05,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:11:05,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:11:05,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:11:05,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:11:05,215 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:11:05,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-11-23 14:11:08,251 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:11:08,567 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:11:08,568 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-11-23 14:11:08,595 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/data/e52182404/b31ab63e6e94446fa632e69fded03a8d/FLAG1f9d8cb52 [2022-11-23 14:11:08,617 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/data/e52182404/b31ab63e6e94446fa632e69fded03a8d [2022-11-23 14:11:08,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:11:08,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:11:08,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:11:08,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:11:08,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:11:08,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:08" (1/1) ... [2022-11-23 14:11:08,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c541484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:08, skipping insertion in model container [2022-11-23 14:11:08,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:08" (1/1) ... [2022-11-23 14:11:08,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:11:08,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:11:08,949 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-11-23 14:11:09,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:11:09,439 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:11:09,458 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-11-23 14:11:09,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:11:09,612 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:11:09,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09 WrapperNode [2022-11-23 14:11:09,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:11:09,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:11:09,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:11:09,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:11:09,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (1/1) ... [2022-11-23 14:11:09,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (1/1) ... [2022-11-23 14:11:09,693 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-11-23 14:11:09,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:11:09,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:11:09,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:11:09,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:11:09,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (1/1) ... [2022-11-23 14:11:09,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (1/1) ... [2022-11-23 14:11:09,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (1/1) ... [2022-11-23 14:11:09,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (1/1) ... [2022-11-23 14:11:09,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (1/1) ... [2022-11-23 14:11:09,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (1/1) ... [2022-11-23 14:11:09,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (1/1) ... [2022-11-23 14:11:09,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (1/1) ... [2022-11-23 14:11:09,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:11:09,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:11:09,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:11:09,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:11:09,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (1/1) ... [2022-11-23 14:11:09,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:11:09,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:11:09,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:11:09,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:11:09,810 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-23 14:11:09,810 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-11-23 14:11:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-11-23 14:11:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-11-23 14:11:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-11-23 14:11:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:11:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:11:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:11:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:11:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 14:11:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:11:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:11:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:11:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:11:09,813 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:11:10,145 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:11:10,147 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:11:10,383 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:11:10,390 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:11:10,390 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:11:10,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:10 BoogieIcfgContainer [2022-11-23 14:11:10,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:11:10,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:11:10,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:11:10,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:11:10,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:11:08" (1/3) ... [2022-11-23 14:11:10,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6feb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:10, skipping insertion in model container [2022-11-23 14:11:10,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:09" (2/3) ... [2022-11-23 14:11:10,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6feb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:10, skipping insertion in model container [2022-11-23 14:11:10,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:10" (3/3) ... [2022-11-23 14:11:10,402 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-11-23 14:11:10,417 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:11:10,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:11:10,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:11:10,430 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:11:10,532 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 14:11:10,575 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:11:10,593 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 94 transitions, 204 flow [2022-11-23 14:11:10,602 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 94 transitions, 204 flow [2022-11-23 14:11:10,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 94 transitions, 204 flow [2022-11-23 14:11:10,681 INFO L130 PetriNetUnfolder]: 1/92 cut-off events. [2022-11-23 14:11:10,681 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 14:11:10,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 92 events. 1/92 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-11-23 14:11:10,688 INFO L119 LiptonReduction]: Number of co-enabled transitions 876 [2022-11-23 14:11:15,550 INFO L134 LiptonReduction]: Checked pairs total: 2351 [2022-11-23 14:11:15,550 INFO L136 LiptonReduction]: Total number of compositions: 80 [2022-11-23 14:11:15,560 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 23 transitions, 62 flow [2022-11-23 14:11:15,581 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 80 states, 78 states have (on average 2.051282051282051) internal successors, (160), 79 states have internal predecessors, (160), 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) [2022-11-23 14:11:15,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:11:15,609 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=FINITE_AUTOMATA, 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;@382060d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:11:15,610 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 14:11:15,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 78 states have (on average 2.051282051282051) internal successors, (160), 79 states have internal predecessors, (160), 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) [2022-11-23 14:11:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:11:15,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:11:15,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:11:15,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-23 14:11:15,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:11:15,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1242480161, now seen corresponding path program 1 times [2022-11-23 14:11:15,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:11:15,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060885515] [2022-11-23 14:11:15,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:15,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:11:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:11:15,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:11:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:11:15,977 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:11:15,979 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:11:15,981 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-23 14:11:15,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-23 14:11:15,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-23 14:11:15,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-23 14:11:15,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:11:15,988 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:11:15,999 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 14:11:15,999 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:11:16,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:11:16 BasicIcfg [2022-11-23 14:11:16,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:11:16,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:11:16,051 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:11:16,051 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:11:16,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:10" (3/4) ... [2022-11-23 14:11:16,054 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 14:11:16,120 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:11:16,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:11:16,128 INFO L158 Benchmark]: Toolchain (without parser) took 7501.18ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 114.2MB in the beginning and 95.7MB in the end (delta: 18.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-23 14:11:16,128 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:11:16,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 983.39ms. Allocated memory is still 159.4MB. Free memory was 113.9MB in the beginning and 119.8MB in the end (delta: -5.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-23 14:11:16,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.07ms. Allocated memory is still 159.4MB. Free memory was 119.8MB in the beginning and 117.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:11:16,130 INFO L158 Benchmark]: Boogie Preprocessor took 36.79ms. Allocated memory is still 159.4MB. Free memory was 117.1MB in the beginning and 114.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:11:16,131 INFO L158 Benchmark]: RCFGBuilder took 660.93ms. Allocated memory is still 159.4MB. Free memory was 114.3MB in the beginning and 95.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 14:11:16,131 INFO L158 Benchmark]: TraceAbstraction took 5656.31ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 94.8MB in the beginning and 98.8MB in the end (delta: -4.0MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2022-11-23 14:11:16,134 INFO L158 Benchmark]: Witness Printer took 75.48ms. Allocated memory is still 192.9MB. Free memory was 98.8MB in the beginning and 95.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:11:16,136 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 113.2MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 983.39ms. Allocated memory is still 159.4MB. Free memory was 113.9MB in the beginning and 119.8MB in the end (delta: -5.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.07ms. Allocated memory is still 159.4MB. Free memory was 119.8MB in the beginning and 117.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.79ms. Allocated memory is still 159.4MB. Free memory was 117.1MB in the beginning and 114.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 660.93ms. Allocated memory is still 159.4MB. Free memory was 114.3MB in the beginning and 95.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5656.31ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 94.8MB in the beginning and 98.8MB in the end (delta: -4.0MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * Witness Printer took 75.48ms. Allocated memory is still 192.9MB. Free memory was 98.8MB in the beginning and 95.7MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.9s, 100 PlacesBefore, 29 PlacesAfterwards, 94 TransitionsBefore, 23 TransitionsAfterwards, 876 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 80 TotalNumberOfCompositions, 2351 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1477, independent: 1340, independent conditional: 0, independent unconditional: 1340, dependent: 137, dependent conditional: 0, dependent unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 676, independent: 642, independent conditional: 0, independent unconditional: 642, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 676, independent: 625, independent conditional: 0, independent unconditional: 625, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1477, independent: 698, independent conditional: 0, independent unconditional: 698, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 676, unknown conditional: 0, unknown unconditional: 676] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 84, Positive conditional cache size: 0, Positive unconditional cache size: 84, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, 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 - 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; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [#in~argv={1151:1150}, #in~ptr={0:0}, argc=1152, argv={1151:1150}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, t1={6:0}, t2={5:0}, unknown-#in~argc-unknown=1152] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [#in~argv={1151:1150}, #in~ptr={0:0}, argc=1152, argv={1151:1150}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, t1={6:0}, t2={5:0}, unknown-#in~argc-unknown=1152] [L1365] CALL 2 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [#in~ptr={0:0}, cond=0, cond={4:0}, g=0, mut={3:0}, unknown-#in~cond-unknown=0] - 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 126 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-11-23 14:11:16,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe34dee-5bd5-41fd-a02f-ffd84546b1e1/bin/utaipan-Q6hlc19bkW/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