./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.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_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8 --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 bdbcb1f6d336419408bc21eb9ac3a89d4566c9a0348f626a712e605b31e52535 --- 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 [2022-12-13 21:19:20,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:19:20,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:19:20,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:19:20,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:19:20,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:19:20,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:19:20,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:19:20,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:19:20,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:19:20,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:19:20,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:19:20,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:19:20,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:19:20,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:19:20,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:19:20,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:19:20,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:19:20,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:19:20,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:19:20,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:19:20,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:19:20,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:19:20,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:19:20,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:19:20,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:19:20,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:19:20,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:19:20,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:19:20,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:19:20,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:19:20,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:19:20,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:19:20,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:19:20,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:19:20,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:19:20,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:19:20,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:19:20,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:19:20,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:19:20,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:19:20,330 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:19:20,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:19:20,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:19:20,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:19:20,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:19:20,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:19:20,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:19:20,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:19:20,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:19:20,347 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:19:20,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:19:20,348 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:19:20,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:19:20,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:19:20,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:19:20,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:19:20,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:19:20,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:19:20,348 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:19:20,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:19:20,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:19:20,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:19:20,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:19:20,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:19:20,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:19:20,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:19:20,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:19:20,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:19:20,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:19:20,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:19:20,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:19:20,350 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:19:20,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:19:20,350 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:19:20,350 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:19:20,350 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:19:20,350 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdbcb1f6d336419408bc21eb9ac3a89d4566c9a0348f626a712e605b31e52535 [2022-12-13 21:19:20,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:19:20,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:19:20,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:19:20,531 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:19:20,531 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:19:20,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i [2022-12-13 21:19:23,166 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:19:23,390 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:19:23,391 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i [2022-12-13 21:19:23,404 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/data/2c073a05d/bf441a572d92488d80170e07a1f1ebdf/FLAGbe0be3f88 [2022-12-13 21:19:23,418 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/data/2c073a05d/bf441a572d92488d80170e07a1f1ebdf [2022-12-13 21:19:23,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:19:23,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:19:23,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:19:23,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:19:23,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:19:23,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ddd38a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23, skipping insertion in model container [2022-12-13 21:19:23,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:19:23,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:19:23,561 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_e895c36a-c485-4b23-b46e-e04fad4cb961/sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2022-12-13 21:19:23,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:19:23,661 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:19:23,670 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_e895c36a-c485-4b23-b46e-e04fad4cb961/sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2022-12-13 21:19:23,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:19:23,709 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:19:23,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23 WrapperNode [2022-12-13 21:19:23,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:19:23,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:19:23,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:19:23,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:19:23,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,737 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2022-12-13 21:19:23,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:19:23,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:19:23,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:19:23,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:19:23,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:19:23,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:19:23,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:19:23,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:19:23,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (1/1) ... [2022-12-13 21:19:23,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:19:23,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:19:23,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:19:23,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:19:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:19:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:19:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 21:19:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:19:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:19:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 21:19:23,806 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 21:19:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:19:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:19:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:19:23,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:19:23,808 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 21:19:23,904 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:19:23,906 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:19:24,063 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:19:24,071 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:19:24,071 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:19:24,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:19:24 BoogieIcfgContainer [2022-12-13 21:19:24,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:19:24,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:19:24,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:19:24,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:19:24,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:19:23" (1/3) ... [2022-12-13 21:19:24,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9dd8564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:19:24, skipping insertion in model container [2022-12-13 21:19:24,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:23" (2/3) ... [2022-12-13 21:19:24,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9dd8564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:19:24, skipping insertion in model container [2022-12-13 21:19:24,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:19:24" (3/3) ... [2022-12-13 21:19:24,082 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i [2022-12-13 21:19:24,091 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 21:19:24,100 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:19:24,100 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-13 21:19:24,100 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:19:24,145 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 21:19:24,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 91 transitions, 190 flow [2022-12-13 21:19:24,211 INFO L130 PetriNetUnfolder]: 3/90 cut-off events. [2022-12-13 21:19:24,211 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 21:19:24,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 3/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-12-13 21:19:24,215 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 91 transitions, 190 flow [2022-12-13 21:19:24,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 82 transitions, 167 flow [2022-12-13 21:19:24,223 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:19:24,231 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 82 transitions, 167 flow [2022-12-13 21:19:24,233 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 82 transitions, 167 flow [2022-12-13 21:19:24,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 82 transitions, 167 flow [2022-12-13 21:19:24,255 INFO L130 PetriNetUnfolder]: 3/82 cut-off events. [2022-12-13 21:19:24,256 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:19:24,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 3/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-12-13 21:19:24,257 INFO L119 LiptonReduction]: Number of co-enabled transitions 768 [2022-12-13 21:19:26,151 INFO L134 LiptonReduction]: Checked pairs total: 1836 [2022-12-13 21:19:26,151 INFO L136 LiptonReduction]: Total number of compositions: 82 [2022-12-13 21:19:26,162 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:19:26,166 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;@2b24ff85, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:19:26,166 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 21:19:26,167 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 21:19:26,167 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:19:26,167 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:19:26,168 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 21:19:26,168 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 21:19:26,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:19:26,171 INFO L85 PathProgramCache]: Analyzing trace with hash 335, now seen corresponding path program 1 times [2022-12-13 21:19:26,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:19:26,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768098404] [2022-12-13 21:19:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:19:26,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:19:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:26,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:19:26,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:19:26,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768098404] [2022-12-13 21:19:26,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768098404] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:19:26,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:19:26,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 21:19:26,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948911580] [2022-12-13 21:19:26,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:19:26,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:19:26,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:19:26,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:19:26,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:19:26,279 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 173 [2022-12-13 21:19:26,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 20 transitions, 43 flow. Second operand has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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) [2022-12-13 21:19:26,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:19:26,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 173 [2022-12-13 21:19:26,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:19:26,317 INFO L130 PetriNetUnfolder]: 28/78 cut-off events. [2022-12-13 21:19:26,317 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:19:26,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 78 events. 28/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 254 event pairs, 28 based on Foata normal form. 5/62 useless extension candidates. Maximal degree in co-relation 143. Up to 70 conditions per place. [2022-12-13 21:19:26,318 INFO L137 encePairwiseOnDemand]: 170/173 looper letters, 13 selfloop transitions, 0 changer transitions 0/16 dead transitions. [2022-12-13 21:19:26,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 61 flow [2022-12-13 21:19:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:19:26,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 21:19:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 182 transitions. [2022-12-13 21:19:26,328 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5260115606936416 [2022-12-13 21:19:26,329 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 182 transitions. [2022-12-13 21:19:26,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 182 transitions. [2022-12-13 21:19:26,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:19:26,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 182 transitions. [2022-12-13 21:19:26,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 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) [2022-12-13 21:19:26,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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) [2022-12-13 21:19:26,337 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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) [2022-12-13 21:19:26,338 INFO L175 Difference]: Start difference. First operand has 22 places, 20 transitions, 43 flow. Second operand 2 states and 182 transitions. [2022-12-13 21:19:26,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 61 flow [2022-12-13 21:19:26,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 21:19:26,342 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 34 flow [2022-12-13 21:19:26,343 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=34, PETRI_PLACES=20, PETRI_TRANSITIONS=16} [2022-12-13 21:19:26,346 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, -2 predicate places. [2022-12-13 21:19:26,346 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 16 transitions, 34 flow [2022-12-13 21:19:26,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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) [2022-12-13 21:19:26,347 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:19:26,347 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 21:19:26,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:19:26,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 21:19:26,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:19:26,348 INFO L85 PathProgramCache]: Analyzing trace with hash 10231963, now seen corresponding path program 1 times [2022-12-13 21:19:26,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:19:26,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730048320] [2022-12-13 21:19:26,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:19:26,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:19:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:26,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:19:26,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:19:26,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730048320] [2022-12-13 21:19:26,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730048320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:19:26,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:19:26,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 21:19:26,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237333797] [2022-12-13 21:19:26,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:19:26,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:19:26,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:19:26,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:19:26,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:19:26,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 173 [2022-12-13 21:19:26,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2022-12-13 21:19:26,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:19:26,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 173 [2022-12-13 21:19:26,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:19:26,524 INFO L130 PetriNetUnfolder]: 31/90 cut-off events. [2022-12-13 21:19:26,524 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:19:26,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 90 events. 31/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 331 event pairs, 15 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 174. Up to 51 conditions per place. [2022-12-13 21:19:26,525 INFO L137 encePairwiseOnDemand]: 168/173 looper letters, 14 selfloop transitions, 4 changer transitions 3/23 dead transitions. [2022-12-13 21:19:26,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 23 transitions, 90 flow [2022-12-13 21:19:26,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:19:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:19:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2022-12-13 21:19:26,528 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5048169556840078 [2022-12-13 21:19:26,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2022-12-13 21:19:26,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2022-12-13 21:19:26,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:19:26,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2022-12-13 21:19:26,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2022-12-13 21:19:26,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2022-12-13 21:19:26,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2022-12-13 21:19:26,531 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 34 flow. Second operand 3 states and 262 transitions. [2022-12-13 21:19:26,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 23 transitions, 90 flow [2022-12-13 21:19:26,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 23 transitions, 90 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 21:19:26,532 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 56 flow [2022-12-13 21:19:26,532 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2022-12-13 21:19:26,533 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2022-12-13 21:19:26,533 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 56 flow [2022-12-13 21:19:26,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2022-12-13 21:19:26,533 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:19:26,533 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:19:26,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:19:26,534 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 21:19:26,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:19:26,534 INFO L85 PathProgramCache]: Analyzing trace with hash -152871504, now seen corresponding path program 1 times [2022-12-13 21:19:26,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:19:26,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933897878] [2022-12-13 21:19:26,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:19:26,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:19:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:26,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:19:26,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:19:26,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933897878] [2022-12-13 21:19:26,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933897878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:19:26,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:19:26,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:19:26,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113295624] [2022-12-13 21:19:26,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:19:26,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:19:26,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:19:26,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:19:26,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:19:26,638 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 173 [2022-12-13 21:19:26,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2022-12-13 21:19:26,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:19:26,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 173 [2022-12-13 21:19:26,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:19:26,677 INFO L130 PetriNetUnfolder]: 22/76 cut-off events. [2022-12-13 21:19:26,678 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-13 21:19:26,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 76 events. 22/76 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 250 event pairs, 6 based on Foata normal form. 4/68 useless extension candidates. Maximal degree in co-relation 184. Up to 40 conditions per place. [2022-12-13 21:19:26,678 INFO L137 encePairwiseOnDemand]: 167/173 looper letters, 14 selfloop transitions, 5 changer transitions 5/25 dead transitions. [2022-12-13 21:19:26,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 25 transitions, 126 flow [2022-12-13 21:19:26,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:19:26,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:19:26,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2022-12-13 21:19:26,681 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48747591522157996 [2022-12-13 21:19:26,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2022-12-13 21:19:26,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2022-12-13 21:19:26,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:19:26,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2022-12-13 21:19:26,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2022-12-13 21:19:26,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2022-12-13 21:19:26,684 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2022-12-13 21:19:26,684 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 56 flow. Second operand 3 states and 253 transitions. [2022-12-13 21:19:26,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 25 transitions, 126 flow [2022-12-13 21:19:26,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:19:26,685 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 65 flow [2022-12-13 21:19:26,685 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2022-12-13 21:19:26,686 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 3 predicate places. [2022-12-13 21:19:26,686 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 65 flow [2022-12-13 21:19:26,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2022-12-13 21:19:26,686 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:19:26,686 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:19:26,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:19:26,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 21:19:26,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:19:26,687 INFO L85 PathProgramCache]: Analyzing trace with hash -153288537, now seen corresponding path program 1 times [2022-12-13 21:19:26,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:19:26,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031287668] [2022-12-13 21:19:26,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:19:26,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:19:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:26,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:19:26,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:19:26,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031287668] [2022-12-13 21:19:26,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031287668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:19:26,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:19:26,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:19:26,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641276802] [2022-12-13 21:19:26,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:19:26,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:19:26,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:19:26,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:19:26,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:19:26,748 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 173 [2022-12-13 21:19:26,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2022-12-13 21:19:26,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:19:26,748 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 173 [2022-12-13 21:19:26,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:19:26,774 INFO L130 PetriNetUnfolder]: 5/34 cut-off events. [2022-12-13 21:19:26,774 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-12-13 21:19:26,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 34 events. 5/34 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 4 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 99. Up to 21 conditions per place. [2022-12-13 21:19:26,775 INFO L137 encePairwiseOnDemand]: 168/173 looper letters, 8 selfloop transitions, 2 changer transitions 3/15 dead transitions. [2022-12-13 21:19:26,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 15 transitions, 88 flow [2022-12-13 21:19:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:19:26,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:19:26,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2022-12-13 21:19:26,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4932562620423892 [2022-12-13 21:19:26,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2022-12-13 21:19:26,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2022-12-13 21:19:26,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:19:26,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2022-12-13 21:19:26,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2022-12-13 21:19:26,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2022-12-13 21:19:26,778 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2022-12-13 21:19:26,778 INFO L175 Difference]: Start difference. First operand has 25 places, 17 transitions, 65 flow. Second operand 3 states and 256 transitions. [2022-12-13 21:19:26,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 15 transitions, 88 flow [2022-12-13 21:19:26,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 15 transitions, 80 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 21:19:26,779 INFO L231 Difference]: Finished difference. Result has 24 places, 12 transitions, 46 flow [2022-12-13 21:19:26,779 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=24, PETRI_TRANSITIONS=12} [2022-12-13 21:19:26,780 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2022-12-13 21:19:26,780 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 12 transitions, 46 flow [2022-12-13 21:19:26,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2022-12-13 21:19:26,781 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:19:26,781 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:19:26,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:19:26,781 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 21:19:26,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:19:26,782 INFO L85 PathProgramCache]: Analyzing trace with hash -456977775, now seen corresponding path program 1 times [2022-12-13 21:19:26,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:19:26,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265916766] [2022-12-13 21:19:26,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:19:26,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:19:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:26,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:19:26,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:19:26,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265916766] [2022-12-13 21:19:26,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265916766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:19:26,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:19:26,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:19:26,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239666710] [2022-12-13 21:19:26,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:19:26,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:19:26,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:19:26,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:19:26,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:19:26,935 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 173 [2022-12-13 21:19:26,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 12 transitions, 46 flow. Second operand has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 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) [2022-12-13 21:19:26,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:19:26,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 173 [2022-12-13 21:19:26,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:19:26,953 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-13 21:19:26,953 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 21:19:26,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 9 events. 0/9 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 3/12 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-12-13 21:19:26,954 INFO L137 encePairwiseOnDemand]: 170/173 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2022-12-13 21:19:26,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 9 transitions, 52 flow [2022-12-13 21:19:26,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 21:19:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 21:19:26,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2022-12-13 21:19:26,956 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44653179190751446 [2022-12-13 21:19:26,956 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 309 transitions. [2022-12-13 21:19:26,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 309 transitions. [2022-12-13 21:19:26,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:19:26,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 309 transitions. [2022-12-13 21:19:26,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2022-12-13 21:19:26,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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) [2022-12-13 21:19:26,958 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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) [2022-12-13 21:19:26,958 INFO L175 Difference]: Start difference. First operand has 24 places, 12 transitions, 46 flow. Second operand 4 states and 309 transitions. [2022-12-13 21:19:26,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 9 transitions, 52 flow [2022-12-13 21:19:26,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 9 transitions, 39 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 21:19:26,958 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2022-12-13 21:19:26,958 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2022-12-13 21:19:26,959 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, -5 predicate places. [2022-12-13 21:19:26,959 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2022-12-13 21:19:26,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 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) [2022-12-13 21:19:26,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-13 21:19:26,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-13 21:19:26,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-13 21:19:26,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-12-13 21:19:26,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-13 21:19:26,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:19:26,966 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 21:19:26,971 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 21:19:26,971 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:19:26,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:19:26 BasicIcfg [2022-12-13 21:19:26,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:19:26,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:19:26,976 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:19:26,976 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:19:26,976 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:19:24" (3/4) ... [2022-12-13 21:19:26,979 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 21:19:26,985 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 21:19:26,988 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-13 21:19:26,988 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 21:19:26,988 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 21:19:26,988 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 21:19:27,021 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:19:27,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:19:27,022 INFO L158 Benchmark]: Toolchain (without parser) took 3599.84ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 88.4MB in the beginning and 114.3MB in the end (delta: -25.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:19:27,022 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:19:27,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.87ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 69.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 21:19:27,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.65ms. Allocated memory is still 123.7MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:19:27,023 INFO L158 Benchmark]: Boogie Preprocessor took 15.13ms. Allocated memory is still 123.7MB. Free memory was 67.4MB in the beginning and 65.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:19:27,024 INFO L158 Benchmark]: RCFGBuilder took 319.96ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 65.8MB in the beginning and 117.4MB in the end (delta: -51.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 21:19:27,024 INFO L158 Benchmark]: TraceAbstraction took 2898.98ms. Allocated memory is still 148.9MB. Free memory was 116.7MB in the beginning and 117.5MB in the end (delta: -739.0kB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2022-12-13 21:19:27,024 INFO L158 Benchmark]: Witness Printer took 46.04ms. Allocated memory is still 148.9MB. Free memory was 117.5MB in the beginning and 114.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:19:27,026 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.87ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 69.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.65ms. Allocated memory is still 123.7MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.13ms. Allocated memory is still 123.7MB. Free memory was 67.4MB in the beginning and 65.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 319.96ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 65.8MB in the beginning and 117.4MB in the end (delta: -51.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2898.98ms. Allocated memory is still 148.9MB. Free memory was 116.7MB in the beginning and 117.5MB in the end (delta: -739.0kB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. * Witness Printer took 46.04ms. Allocated memory is still 148.9MB. Free memory was 117.5MB in the beginning and 114.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 83 PlacesBefore, 22 PlacesAfterwards, 82 TransitionsBefore, 20 TransitionsAfterwards, 768 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 82 TotalNumberOfCompositions, 1836 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 946, independent: 798, independent conditional: 0, independent unconditional: 798, dependent: 148, dependent conditional: 0, dependent unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 456, independent: 421, independent conditional: 0, independent unconditional: 421, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 946, independent: 377, independent conditional: 0, independent unconditional: 377, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 456, unknown conditional: 0, unknown unconditional: 456] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 114 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 7 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 21:19:27,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e895c36a-c485-4b23-b46e-e04fad4cb961/bin/uautomizer-uyxdKDjOR8/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 Result: TRUE