./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/reorder_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh --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 898f8e4708144102795278f9f1417651c36b4d3f17c0ba18e240a325ff6101b3 --- 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-2329fc7 [2022-12-14 09:53:19,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:53:19,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:53:19,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:53:19,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:53:19,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:53:19,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:53:19,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:53:19,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:53:19,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:53:19,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:53:19,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:53:19,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:53:19,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:53:19,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:53:19,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:53:19,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:53:19,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:53:19,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:53:19,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:53:19,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:53:19,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:53:19,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:53:19,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:53:19,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:53:19,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:53:19,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:53:19,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:53:19,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:53:19,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:53:19,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:53:19,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:53:19,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:53:19,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:53:19,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:53:19,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:53:19,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:53:19,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:53:19,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:53:19,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:53:19,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:53:19,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:53:19,837 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:53:19,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:53:19,838 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:53:19,838 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:53:19,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:53:19,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:53:19,839 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:53:19,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:53:19,839 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:53:19,839 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:53:19,840 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:53:19,840 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:53:19,840 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:53:19,840 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:53:19,840 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:53:19,840 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:53:19,841 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:53:19,841 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:53:19,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:53:19,842 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:53:19,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:53:19,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:53:19,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:53:19,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:53:19,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:53:19,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:53:19,843 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:53:19,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:53:19,843 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:53:19,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:53:19,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:53:19,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:53:19,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:53:19,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:53:19,844 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:53:19,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:53:19,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:53:19,845 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:53:19,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:53:19,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:53:19,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:53:19,845 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_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 898f8e4708144102795278f9f1417651c36b4d3f17c0ba18e240a325ff6101b3 [2022-12-14 09:53:20,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:53:20,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:53:20,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:53:20,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:53:20,057 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:53:20,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread/reorder_5.i [2022-12-14 09:53:22,631 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:53:22,831 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:53:22,831 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/sv-benchmarks/c/pthread/reorder_5.i [2022-12-14 09:53:22,842 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/data/2650971e4/19b494d459f24e8684adc7fbdcea65fa/FLAG40fa7f8ca [2022-12-14 09:53:22,853 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/data/2650971e4/19b494d459f24e8684adc7fbdcea65fa [2022-12-14 09:53:22,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:53:22,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:53:22,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:53:22,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:53:22,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:53:22,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:53:22" (1/1) ... [2022-12-14 09:53:22,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2f79af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:22, skipping insertion in model container [2022-12-14 09:53:22,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:53:22" (1/1) ... [2022-12-14 09:53:22,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:53:22,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:53:23,302 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,308 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,310 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,311 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,313 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,315 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,315 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_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/sv-benchmarks/c/pthread/reorder_5.i[59395,59408] [2022-12-14 09:53:23,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:53:23,325 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:53:23,354 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,357 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,358 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,359 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,361 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,362 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:23,363 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_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/sv-benchmarks/c/pthread/reorder_5.i[59395,59408] [2022-12-14 09:53:23,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:53:23,412 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:53:23,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23 WrapperNode [2022-12-14 09:53:23,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:53:23,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:53:23,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:53:23,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:53:23,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (1/1) ... [2022-12-14 09:53:23,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (1/1) ... [2022-12-14 09:53:23,447 INFO L138 Inliner]: procedures = 369, calls = 39, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 149 [2022-12-14 09:53:23,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:53:23,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:53:23,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:53:23,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:53:23,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (1/1) ... [2022-12-14 09:53:23,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (1/1) ... [2022-12-14 09:53:23,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (1/1) ... [2022-12-14 09:53:23,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (1/1) ... [2022-12-14 09:53:23,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (1/1) ... [2022-12-14 09:53:23,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (1/1) ... [2022-12-14 09:53:23,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (1/1) ... [2022-12-14 09:53:23,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (1/1) ... [2022-12-14 09:53:23,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:53:23,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:53:23,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:53:23,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:53:23,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (1/1) ... [2022-12-14 09:53:23,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:53:23,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:53:23,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:53:23,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:53:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:53:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:53:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:53:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-12-14 09:53:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-12-14 09:53:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:53:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:53:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-12-14 09:53:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-12-14 09:53:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:53:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:53:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:53:23,538 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 09:53:23,643 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:53:23,645 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:53:23,847 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:53:23,853 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:53:23,853 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 09:53:23,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:53:23 BoogieIcfgContainer [2022-12-14 09:53:23,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:53:23,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:53:23,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:53:23,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:53:23,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:53:22" (1/3) ... [2022-12-14 09:53:23,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e421a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:53:23, skipping insertion in model container [2022-12-14 09:53:23,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:23" (2/3) ... [2022-12-14 09:53:23,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e421a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:53:23, skipping insertion in model container [2022-12-14 09:53:23,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:53:23" (3/3) ... [2022-12-14 09:53:23,861 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2022-12-14 09:53:23,867 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 09:53:23,874 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:53:23,875 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:53:23,875 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 09:53:23,921 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-14 09:53:23,953 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:53:23,965 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 173 transitions, 368 flow [2022-12-14 09:53:23,968 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 173 transitions, 368 flow [2022-12-14 09:53:23,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 173 transitions, 368 flow [2022-12-14 09:53:24,057 INFO L130 PetriNetUnfolder]: 37/349 cut-off events. [2022-12-14 09:53:24,057 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-14 09:53:24,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 349 events. 37/349 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1150 event pairs, 0 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 190. Up to 8 conditions per place. [2022-12-14 09:53:24,065 INFO L119 LiptonReduction]: Number of co-enabled transitions 2234 [2022-12-14 09:53:33,057 INFO L134 LiptonReduction]: Checked pairs total: 3979 [2022-12-14 09:53:33,057 INFO L136 LiptonReduction]: Total number of compositions: 191 [2022-12-14 09:53:33,063 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 27 transitions, 76 flow [2022-12-14 09:53:33,076 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 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) [2022-12-14 09:53:33,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:53:33,092 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;@65b4e616, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:53:33,092 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 09:53:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 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) [2022-12-14 09:53:33,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:53:33,098 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:33,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:53:33,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-14 09:53:33,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:33,102 INFO L85 PathProgramCache]: Analyzing trace with hash 619295636, now seen corresponding path program 1 times [2022-12-14 09:53:33,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:33,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092871356] [2022-12-14 09:53:33,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:33,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:53:33,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:53:33,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:53:33,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092871356] [2022-12-14 09:53:33,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092871356] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:53:33,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:53:33,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:53:33,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252131585] [2022-12-14 09:53:33,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:53:33,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:53:33,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:53:33,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:53:33,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:53:33,371 INFO L87 Difference]: Start difference. First operand has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:53:33,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:53:33,437 INFO L93 Difference]: Finished difference Result 111 states and 194 transitions. [2022-12-14 09:53:33,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:53:33,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 09:53:33,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:53:33,444 INFO L225 Difference]: With dead ends: 111 [2022-12-14 09:53:33,444 INFO L226 Difference]: Without dead ends: 106 [2022-12-14 09:53:33,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:53:33,447 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:53:33,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:53:33,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-12-14 09:53:33,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-12-14 09:53:33,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 98 states have (on average 1.9285714285714286) internal successors, (189), 105 states have internal predecessors, (189), 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) [2022-12-14 09:53:33,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 189 transitions. [2022-12-14 09:53:33,473 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 189 transitions. Word has length 5 [2022-12-14 09:53:33,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:53:33,474 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 189 transitions. [2022-12-14 09:53:33,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:53:33,474 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 189 transitions. [2022-12-14 09:53:33,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:53:33,474 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:33,474 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 09:53:33,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:53:33,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-14 09:53:33,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:33,475 INFO L85 PathProgramCache]: Analyzing trace with hash 2021355438, now seen corresponding path program 1 times [2022-12-14 09:53:33,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:33,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855480748] [2022-12-14 09:53:33,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:33,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:53:33,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:53:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:53:33,563 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:53:33,564 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:53:33,565 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-12-14 09:53:33,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-12-14 09:53:33,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-14 09:53:33,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-14 09:53:33,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:53:33,568 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 09:53:33,570 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 09:53:33,570 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-14 09:53:33,593 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-14 09:53:33,596 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:53:33,596 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 193 transitions, 434 flow [2022-12-14 09:53:33,596 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 193 transitions, 434 flow [2022-12-14 09:53:33,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 193 transitions, 434 flow [2022-12-14 09:53:33,691 INFO L130 PetriNetUnfolder]: 149/1088 cut-off events. [2022-12-14 09:53:33,691 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-14 09:53:33,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 1088 events. 149/1088 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5603 event pairs, 1 based on Foata normal form. 0/946 useless extension candidates. Maximal degree in co-relation 640. Up to 32 conditions per place. [2022-12-14 09:53:33,705 INFO L119 LiptonReduction]: Number of co-enabled transitions 5132 [2022-12-14 09:53:41,359 INFO L134 LiptonReduction]: Checked pairs total: 10540 [2022-12-14 09:53:41,359 INFO L136 LiptonReduction]: Total number of compositions: 202 [2022-12-14 09:53:41,360 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 39 transitions, 126 flow [2022-12-14 09:53:41,423 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 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) [2022-12-14 09:53:41,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:53:41,425 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;@65b4e616, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:53:41,425 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-14 09:53:41,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 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) [2022-12-14 09:53:41,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:53:41,430 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:41,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:53:41,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 09:53:41,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:41,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1013290492, now seen corresponding path program 1 times [2022-12-14 09:53:41,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:41,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775786679] [2022-12-14 09:53:41,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:41,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:53:41,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:53:41,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:53:41,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775786679] [2022-12-14 09:53:41,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775786679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:53:41,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:53:41,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:53:41,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763683525] [2022-12-14 09:53:41,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:53:41,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:53:41,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:53:41,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:53:41,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:53:41,501 INFO L87 Difference]: Start difference. First operand has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:53:41,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:53:41,599 INFO L93 Difference]: Finished difference Result 2203 states and 6526 transitions. [2022-12-14 09:53:41,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:53:41,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 09:53:41,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:53:41,619 INFO L225 Difference]: With dead ends: 2203 [2022-12-14 09:53:41,619 INFO L226 Difference]: Without dead ends: 2170 [2022-12-14 09:53:41,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:53:41,621 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 25 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:53:41,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 12 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:53:41,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2022-12-14 09:53:41,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2170. [2022-12-14 09:53:41,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2134 states have (on average 3.036551077788191) internal successors, (6480), 2169 states have internal predecessors, (6480), 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) [2022-12-14 09:53:41,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 6480 transitions. [2022-12-14 09:53:41,716 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 6480 transitions. Word has length 5 [2022-12-14 09:53:41,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:53:41,717 INFO L495 AbstractCegarLoop]: Abstraction has 2170 states and 6480 transitions. [2022-12-14 09:53:41,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:53:41,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 6480 transitions. [2022-12-14 09:53:41,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 09:53:41,718 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:41,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:53:41,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:53:41,718 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 09:53:41,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:41,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1498117487, now seen corresponding path program 1 times [2022-12-14 09:53:41,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:41,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677081911] [2022-12-14 09:53:41,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:41,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:53:41,750 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:53:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:53:41,783 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:53:41,783 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:53:41,783 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-14 09:53:41,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-14 09:53:41,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-14 09:53:41,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-14 09:53:41,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-14 09:53:41,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:53:41,785 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 09:53:41,789 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-12-14 09:53:41,789 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:53:41,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:53:41 BasicIcfg [2022-12-14 09:53:41,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:53:41,823 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:53:41,823 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:53:41,823 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:53:41,824 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:53:23" (3/4) ... [2022-12-14 09:53:41,825 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 09:53:41,866 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:53:41,866 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:53:41,867 INFO L158 Benchmark]: Toolchain (without parser) took 19010.36ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 108.1MB in the beginning and 84.9MB in the end (delta: 23.2MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2022-12-14 09:53:41,867 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:53:41,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.80ms. Allocated memory is still 148.9MB. Free memory was 107.6MB in the beginning and 68.2MB in the end (delta: 39.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-14 09:53:41,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.62ms. Allocated memory is still 148.9MB. Free memory was 68.2MB in the beginning and 65.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:53:41,868 INFO L158 Benchmark]: Boogie Preprocessor took 20.20ms. Allocated memory is still 148.9MB. Free memory was 65.6MB in the beginning and 63.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:53:41,868 INFO L158 Benchmark]: RCFGBuilder took 386.78ms. Allocated memory is still 148.9MB. Free memory was 63.5MB in the beginning and 105.4MB in the end (delta: -41.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-12-14 09:53:41,868 INFO L158 Benchmark]: TraceAbstraction took 17966.00ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 104.7MB in the beginning and 90.1MB in the end (delta: 14.5MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2022-12-14 09:53:41,869 INFO L158 Benchmark]: Witness Printer took 43.35ms. Allocated memory is still 180.4MB. Free memory was 90.1MB in the beginning and 84.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 09:53:41,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.80ms. Allocated memory is still 148.9MB. Free memory was 107.6MB in the beginning and 68.2MB in the end (delta: 39.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.62ms. Allocated memory is still 148.9MB. Free memory was 68.2MB in the beginning and 65.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.20ms. Allocated memory is still 148.9MB. Free memory was 65.6MB in the beginning and 63.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 386.78ms. Allocated memory is still 148.9MB. Free memory was 63.5MB in the beginning and 105.4MB in the end (delta: -41.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * TraceAbstraction took 17966.00ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 104.7MB in the beginning and 90.1MB in the end (delta: 14.5MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. * Witness Printer took 43.35ms. Allocated memory is still 180.4MB. Free memory was 90.1MB in the beginning and 84.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1s, 161 PlacesBefore, 28 PlacesAfterwards, 173 TransitionsBefore, 27 TransitionsAfterwards, 2234 CoEnabledTransitionPairs, 9 FixpointIterations, 68 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 26 ConcurrentYvCompositions, 13 ChoiceCompositions, 191 TotalNumberOfCompositions, 3979 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3069, independent: 3017, independent conditional: 0, independent unconditional: 3017, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1760, independent: 1744, independent conditional: 0, independent unconditional: 1744, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1760, independent: 1744, independent conditional: 0, independent unconditional: 1744, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3069, independent: 1273, independent conditional: 0, independent unconditional: 1273, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 1760, unknown conditional: 0, unknown unconditional: 1760] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8s, 180 PlacesBefore, 40 PlacesAfterwards, 193 TransitionsBefore, 39 TransitionsAfterwards, 5132 CoEnabledTransitionPairs, 8 FixpointIterations, 67 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 32 ConcurrentYvCompositions, 14 ChoiceCompositions, 202 TotalNumberOfCompositions, 10540 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7845, independent: 7751, independent conditional: 0, independent unconditional: 7751, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3790, independent: 3756, independent conditional: 0, independent unconditional: 3756, 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: 3790, independent: 3751, independent conditional: 0, independent unconditional: 3751, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 40, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7845, independent: 3995, independent conditional: 0, independent unconditional: 3995, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 3790, unknown conditional: 0, unknown unconditional: 3790] , Statistics on independence cache: Total cache size (in pairs): 204, Positive cache size: 196, Positive conditional cache size: 0, Positive unconditional cache size: 196, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1287]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1227] 0 static int iSet = 4; [L1228] 0 static int iCheck = 1; [L1229] 0 static int a = 0; [L1230] 0 static int b = 0; [L1237] 0 int i, err; [L1238] COND TRUE 0 argc != 1 [L1239] COND FALSE 0 !(argc != 3) [L1247] EXPR 0 \read(iSet) [L1247] 0 iSet > 100000 || iCheck > 100000 [L1247] EXPR 0 \read(iCheck) [L1247] 0 iSet > 100000 || iCheck > 100000 [L1247] COND FALSE 0 !(iSet > 100000 || iCheck > 100000) [L1250] EXPR 0 \read(iSet) [L1250] 0 pthread_t setPool[iSet]; [L1251] EXPR 0 \read(iCheck) [L1251] 0 pthread_t checkPool[iCheck]; [L1252] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={50:49}, argv={50:49}, b=0, checkPool={14:0}, i=0, iCheck={11:0}, iSet={10:0}, setPool={13:0}] [L1252] EXPR 0 \read(iSet) [L1252] COND TRUE 0 i < iSet [L1253] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={50:49}, argv={50:49}, b=0, checkPool={14:0}, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=1, setPool={13:0}] [L1280] 1 a = 1 VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}] [L1253] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=1, argc=3, argv={50:49}, argv={50:49}, b=0, checkPool={14:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=1, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, setPool={13:0}] [L1253] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1252] 0 i++ VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=1, argc=3, argv={50:49}, argv={50:49}, b=0, checkPool={14:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=51, i=1, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={13:0}] [L1252] EXPR 0 \read(iSet) [L1252] COND FALSE 0 !(i < iSet) [L1258] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=1, argc=3, argv={50:49}, argv={50:49}, b=0, checkPool={14:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=51, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={13:0}] [L1258] EXPR 0 \read(iCheck) [L1258] COND TRUE 0 i < iCheck [L1259-L1260] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=1, argc=3, argv={50:49}, argv={50:49}, b=0, checkPool={14:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=51, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, param={0:0}, pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0))=2, setPool={13:0}] [L1285] COND TRUE 2 ! ((a == 0 && b == 0) || (a == 1 && b == -1)) [L1287] 2 reach_error() VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}] - UnprovableResult [Line: 1259]: 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: 1253]: 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, 172 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 187 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 6 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2267occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-12-14 09:53:41,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a288dd-8fcf-48d1-a02d-6918164f4fbc/bin/utaipan-gh47qXpMRh/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