./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 5e519f3a 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_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-5e519f3 [2022-11-02 20:43:54,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:43:54,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:43:54,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:43:54,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:43:54,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:43:54,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:43:54,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:43:54,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:43:54,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:43:54,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:43:54,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:43:54,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:43:54,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:43:54,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:43:54,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:43:54,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:43:54,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:43:54,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:43:54,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:43:54,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:43:54,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:43:54,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:43:54,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:43:54,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:43:54,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:43:54,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:43:54,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:43:54,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:43:54,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:43:54,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:43:54,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:43:54,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:43:54,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:43:54,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:43:54,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:43:54,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:43:54,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:43:54,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:43:54,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:43:54,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:43:54,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:43:54,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:43:54,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:43:54,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:43:54,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:43:54,261 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:43:54,261 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:43:54,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:43:54,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:43:54,262 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:43:54,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:43:54,263 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:43:54,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:43:54,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:43:54,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:43:54,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:43:54,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:43:54,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:43:54,265 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:43:54,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:43:54,265 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:43:54,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:43:54,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:43:54,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:43:54,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:43:54,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:43:54,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:43:54,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:43:54,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:43:54,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:43:54,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:43:54,267 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:43:54,268 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:43:54,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:43:54,268 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_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca [2022-11-02 20:43:54,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:43:54,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:43:54,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:43:54,681 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:43:54,682 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:43:54,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2022-11-02 20:43:54,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/data/a8e66d973/ff233fd1a2454f37b5b2d0290debb290/FLAG28636e289 [2022-11-02 20:43:55,417 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:43:55,418 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2022-11-02 20:43:55,424 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/data/a8e66d973/ff233fd1a2454f37b5b2d0290debb290/FLAG28636e289 [2022-11-02 20:43:55,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/data/a8e66d973/ff233fd1a2454f37b5b2d0290debb290 [2022-11-02 20:43:55,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:43:55,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:43:55,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:43:55,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:43:55,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:43:55,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:43:55" (1/1) ... [2022-11-02 20:43:55,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d68970e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:55, skipping insertion in model container [2022-11-02 20:43:55,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:43:55" (1/1) ... [2022-11-02 20:43:55,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:43:55,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:43:56,094 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_60f2a853-41cb-43fd-99a0-83cdb4b65823/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c[4837,4850] [2022-11-02 20:43:56,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:43:56,109 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:43:56,152 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_60f2a853-41cb-43fd-99a0-83cdb4b65823/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c[4837,4850] [2022-11-02 20:43:56,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:43:56,171 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:43:56,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56 WrapperNode [2022-11-02 20:43:56,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:43:56,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:43:56,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:43:56,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:43:56,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (1/1) ... [2022-11-02 20:43:56,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (1/1) ... [2022-11-02 20:43:56,234 INFO L138 Inliner]: procedures = 26, calls = 115, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 318 [2022-11-02 20:43:56,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:43:56,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:43:56,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:43:56,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:43:56,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (1/1) ... [2022-11-02 20:43:56,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (1/1) ... [2022-11-02 20:43:56,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (1/1) ... [2022-11-02 20:43:56,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (1/1) ... [2022-11-02 20:43:56,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (1/1) ... [2022-11-02 20:43:56,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (1/1) ... [2022-11-02 20:43:56,266 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (1/1) ... [2022-11-02 20:43:56,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (1/1) ... [2022-11-02 20:43:56,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:43:56,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:43:56,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:43:56,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:43:56,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (1/1) ... [2022-11-02 20:43:56,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:43:56,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:43:56,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:43:56,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f2a853-41cb-43fd-99a0-83cdb4b65823/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:43:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:43:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:43:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:43:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:43:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:43:56,412 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:43:56,413 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:43:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:43:56,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:43:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:43:56,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-02 20:43:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-02 20:43:56,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:43:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-02 20:43:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-02 20:43:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-02 20:43:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-02 20:43:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-11-02 20:43:56,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-11-02 20:43:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:43:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:43:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:43:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:43:56,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:43:56,423 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:43:56,663 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:43:56,666 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:43:57,150 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:43:57,343 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:43:57,343 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:43:57,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:43:57 BoogieIcfgContainer [2022-11-02 20:43:57,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:43:57,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:43:57,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:43:57,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:43:57,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:43:55" (1/3) ... [2022-11-02 20:43:57,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7725903b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:43:57, skipping insertion in model container [2022-11-02 20:43:57,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:43:56" (2/3) ... [2022-11-02 20:43:57,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7725903b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:43:57, skipping insertion in model container [2022-11-02 20:43:57,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:43:57" (3/3) ... [2022-11-02 20:43:57,360 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2022-11-02 20:43:57,370 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:43:57,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:43:57,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:43:57,382 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:43:57,602 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-11-02 20:43:57,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 211 transitions, 478 flow [2022-11-02 20:43:57,837 INFO L130 PetriNetUnfolder]: 2/204 cut-off events. [2022-11-02 20:43:57,837 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-02 20:43:57,842 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. [2022-11-02 20:43:57,842 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 211 transitions, 478 flow [2022-11-02 20:43:57,856 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 205 places, 185 transitions, 412 flow [2022-11-02 20:43:57,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:43:57,892 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;@41a60eb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:43:57,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-02 20:43:57,984 INFO L130 PetriNetUnfolder]: 2/184 cut-off events. [2022-11-02 20:43:57,984 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-02 20:43:57,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:43:57,986 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] [2022-11-02 20:43:57,987 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)] === [2022-11-02 20:43:57,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:57,995 INFO L85 PathProgramCache]: Analyzing trace with hash -486853653, now seen corresponding path program 1 times [2022-11-02 20:43:58,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:43:58,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145792722] [2022-11-02 20:43:58,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:58,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:43:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:44:01,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:44:01,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:44:01,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145792722] [2022-11-02 20:44:01,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145792722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:44:01,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:44:01,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:44:01,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633717450] [2022-11-02 20:44:01,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:44:01,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:44:01,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:44:01,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:44:01,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:44:02,003 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 211 [2022-11-02 20:44:02,013 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) [2022-11-02 20:44:02,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:44:02,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 211 [2022-11-02 20:44:02,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand