./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca --- 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-dbf71c6-m [2022-10-17 10:56:12,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:56:12,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:56:12,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:56:12,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:56:12,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:56:12,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:56:12,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:56:12,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:56:12,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:56:12,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:56:12,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:56:12,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:56:12,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:56:12,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:56:12,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:56:12,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:56:12,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:56:12,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:56:12,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:56:12,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:56:12,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:56:12,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:56:12,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:56:12,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:56:12,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:56:12,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:56:12,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:56:12,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:56:12,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:56:12,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:56:12,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:56:12,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:56:12,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:56:12,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:56:12,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:56:12,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:56:12,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:56:12,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:56:12,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:56:12,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:56:12,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:56:12,959 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:56:12,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:56:12,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:56:12,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:56:12,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:56:12,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:56:12,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:56:12,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:56:12,963 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:56:12,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:56:12,965 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:56:12,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:56:12,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:56:12,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:56:12,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:56:12,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:56:12,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:56:12,966 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:56:12,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:56:12,967 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:56:12,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:56:12,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:56:12,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:56:12,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:56:12,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:56:12,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:56:12,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:56:12,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:56:12,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:56:12,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:56:12,971 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:56:12,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:56:12,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:56:12,972 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_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca [2022-10-17 10:56:13,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:56:13,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:56:13,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:56:13,291 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:56:13,292 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:56:13,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2022-10-17 10:56:13,382 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/data/0e6a3621e/4602d6dc1477489c8aef82bd8492fbe8/FLAGc04c9c877 [2022-10-17 10:56:13,862 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:56:13,863 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2022-10-17 10:56:13,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/data/0e6a3621e/4602d6dc1477489c8aef82bd8492fbe8/FLAGc04c9c877 [2022-10-17 10:56:14,192 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/data/0e6a3621e/4602d6dc1477489c8aef82bd8492fbe8 [2022-10-17 10:56:14,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:56:14,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:56:14,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:14,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:56:14,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:56:14,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e71a80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14, skipping insertion in model container [2022-10-17 10:56:14,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:56:14,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:56:14,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c[4837,4850] [2022-10-17 10:56:14,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:14,482 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:56:14,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c[4837,4850] [2022-10-17 10:56:14,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:14,535 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:56:14,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14 WrapperNode [2022-10-17 10:56:14,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:14,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:14,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:56:14,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:56:14,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,623 INFO L138 Inliner]: procedures = 26, calls = 115, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 318 [2022-10-17 10:56:14,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:14,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:56:14,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:56:14,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:56:14,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,686 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:56:14,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:56:14,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:56:14,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:56:14,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (1/1) ... [2022-10-17 10:56:14,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:56:14,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:14,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:14,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb714d9-cd35-43aa-848c-9fba14553cd4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:56:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:56:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:56:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:56:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:56:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-10-17 10:56:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-10-17 10:56:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-10-17 10:56:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-10-17 10:56:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-10-17 10:56:14,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-10-17 10:56:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-10-17 10:56:14,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-10-17 10:56:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:56:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-10-17 10:56:14,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-10-17 10:56:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-10-17 10:56:14,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-10-17 10:56:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-10-17 10:56:14,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-10-17 10:56:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:56:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:56:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:56:14,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:56:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:56:14,825 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:56:14,935 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:56:14,937 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:56:15,371 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:56:15,559 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:56:15,559 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:56:15,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:56:15 BoogieIcfgContainer [2022-10-17 10:56:15,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:56:15,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:56:15,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:56:15,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:56:15,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:56:14" (1/3) ... [2022-10-17 10:56:15,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acb5f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:56:15, skipping insertion in model container [2022-10-17 10:56:15,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:14" (2/3) ... [2022-10-17 10:56:15,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acb5f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:56:15, skipping insertion in model container [2022-10-17 10:56:15,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:56:15" (3/3) ... [2022-10-17 10:56:15,572 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2022-10-17 10:56:15,581 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:56:15,591 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:56:15,591 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:56:15,591 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:56:15,742 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-10-17 10:56:15,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 211 transitions, 478 flow [2022-10-17 10:56:15,967 INFO L130 PetriNetUnfolder]: 2/204 cut-off events. [2022-10-17 10:56:15,969 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-10-17 10:56:15,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 204 events. 2/204 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 158. Up to 2 conditions per place. [2022-10-17 10:56:15,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 211 transitions, 478 flow [2022-10-17 10:56:15,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 205 places, 185 transitions, 412 flow [2022-10-17 10:56:16,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:56:16,009 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2b881e04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:56:16,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-17 10:56:16,087 INFO L130 PetriNetUnfolder]: 2/184 cut-off events. [2022-10-17 10:56:16,100 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-10-17 10:56:16,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:56:16,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:56:16,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-10-17 10:56:16,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:16,107 INFO L85 PathProgramCache]: Analyzing trace with hash -486853653, now seen corresponding path program 1 times [2022-10-17 10:56:16,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:16,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308238134] [2022-10-17 10:56:16,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:16,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:19,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:19,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:56:19,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308238134] [2022-10-17 10:56:19,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308238134] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:56:19,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:56:19,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-17 10:56:19,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334362367] [2022-10-17 10:56:19,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:56:19,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-17 10:56:19,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:56:19,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 10:56:19,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:56:19,707 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 211 [2022-10-17 10:56:19,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 185 transitions, 412 flow. Second operand has 10 states, 10 states have (on average 156.5) internal successors, (1565), 10 states have internal predecessors, (1565), 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) [2022-10-17 10:56:19,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:56:19,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 211 [2022-10-17 10:56:19,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand