./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8 --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 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 --- 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-e04fb08 [2022-11-16 12:46:32,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:46:32,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:46:32,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:46:32,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:46:32,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:46:32,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:46:32,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:46:32,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:46:32,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:46:32,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:46:32,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:46:32,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:46:32,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:46:32,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:46:32,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:46:32,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:46:32,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:46:32,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:46:32,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:46:32,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:46:32,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:46:32,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:46:32,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:46:32,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:46:32,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:46:32,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:46:32,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:46:32,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:46:32,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:46:32,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:46:32,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:46:32,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:46:32,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:46:32,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:46:32,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:46:32,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:46:32,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:46:32,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:46:32,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:46:32,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:46:32,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:46:32,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:46:32,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:46:32,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:46:32,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:46:32,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:46:32,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:46:32,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:46:32,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:46:32,486 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:46:32,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:46:32,487 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:46:32,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:46:32,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:46:32,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:46:32,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:46:32,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:46:32,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:46:32,489 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:46:32,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:46:32,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:46:32,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:46:32,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:46:32,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:46:32,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:46:32,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:32,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:46:32,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:46:32,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:46:32,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:46:32,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:46:32,492 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:46:32,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:46:32,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:46:32,493 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_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 [2022-11-16 12:46:32,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:46:32,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:46:32,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:46:32,809 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:46:32,810 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:46:32,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2022-11-16 12:46:32,874 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/data/3a3244f46/b599cc7649e7443bbb1cbbed46242ebb/FLAGd2f33b022 [2022-11-16 12:46:33,329 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:46:33,330 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2022-11-16 12:46:33,342 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/data/3a3244f46/b599cc7649e7443bbb1cbbed46242ebb/FLAGd2f33b022 [2022-11-16 12:46:33,717 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/data/3a3244f46/b599cc7649e7443bbb1cbbed46242ebb [2022-11-16 12:46:33,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:46:33,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:46:33,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:33,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:46:33,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:46:33,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:33" (1/1) ... [2022-11-16 12:46:33,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd80c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:33, skipping insertion in model container [2022-11-16 12:46:33,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:33" (1/1) ... [2022-11-16 12:46:33,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:46:33,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:46:34,050 WARN L229 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_be73ba38-47b3-4f00-a51c-e3bc07edb47f/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-11-16 12:46:34,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:34,065 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:46:34,092 WARN L229 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_be73ba38-47b3-4f00-a51c-e3bc07edb47f/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-11-16 12:46:34,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:34,108 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:46:34,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34 WrapperNode [2022-11-16 12:46:34,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:34,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:34,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:46:34,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:46:34,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (1/1) ... [2022-11-16 12:46:34,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (1/1) ... [2022-11-16 12:46:34,170 INFO L138 Inliner]: procedures = 23, calls = 45, calls flagged for inlining = 17, calls inlined = 39, statements flattened = 349 [2022-11-16 12:46:34,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:34,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:46:34,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:46:34,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:46:34,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (1/1) ... [2022-11-16 12:46:34,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (1/1) ... [2022-11-16 12:46:34,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (1/1) ... [2022-11-16 12:46:34,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (1/1) ... [2022-11-16 12:46:34,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (1/1) ... [2022-11-16 12:46:34,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (1/1) ... [2022-11-16 12:46:34,241 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (1/1) ... [2022-11-16 12:46:34,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (1/1) ... [2022-11-16 12:46:34,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:46:34,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:46:34,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:46:34,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:46:34,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (1/1) ... [2022-11-16 12:46:34,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:34,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:34,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:46:34,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:46:34,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:46:34,335 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:46:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:46:34,335 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:46:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:46:34,336 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:46:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:46:34,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:46:34,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:46:34,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:46:34,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:46:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:46:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:46:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:46:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:46:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:46:34,339 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:46:34,453 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:46:34,456 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:46:35,214 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:46:35,830 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:46:35,830 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:46:35,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:35 BoogieIcfgContainer [2022-11-16 12:46:35,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:46:35,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:46:35,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:46:35,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:46:35,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:46:33" (1/3) ... [2022-11-16 12:46:35,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2804785f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:35, skipping insertion in model container [2022-11-16 12:46:35,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:34" (2/3) ... [2022-11-16 12:46:35,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2804785f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:35, skipping insertion in model container [2022-11-16 12:46:35,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:35" (3/3) ... [2022-11-16 12:46:35,844 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2022-11-16 12:46:35,854 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:46:35,865 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:46:35,866 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:46:35,866 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:46:35,960 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 12:46:35,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 125 transitions, 274 flow [2022-11-16 12:46:36,092 INFO L130 PetriNetUnfolder]: 1/122 cut-off events. [2022-11-16 12:46:36,092 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:46:36,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 122 events. 1/122 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2022-11-16 12:46:36,100 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 125 transitions, 274 flow [2022-11-16 12:46:36,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 111 transitions, 240 flow [2022-11-16 12:46:36,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:46:36,144 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;@395f6a07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:46:36,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 12:46:36,182 INFO L130 PetriNetUnfolder]: 1/110 cut-off events. [2022-11-16 12:46:36,182 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:46:36,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:36,183 INFO L209 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] [2022-11-16 12:46:36,184 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 1 more)] === [2022-11-16 12:46:36,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:36,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1217346723, now seen corresponding path program 1 times [2022-11-16 12:46:36,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:36,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457590408] [2022-11-16 12:46:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:36,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:44,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:44,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:44,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457590408] [2022-11-16 12:46:44,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457590408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:44,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:44,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:46:44,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222469151] [2022-11-16 12:46:44,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:44,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:46:44,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:44,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:46:44,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:46:44,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-16 12:46:44,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 111 transitions, 240 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:46:44,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:44,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-16 12:46:44,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:45,188 INFO L130 PetriNetUnfolder]: 14/201 cut-off events. [2022-11-16 12:46:45,188 INFO L131 PetriNetUnfolder]: For 56/63 co-relation queries the response was YES. [2022-11-16 12:46:45,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 201 events. 14/201 cut-off events. For 56/63 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 428 event pairs, 1 based on Foata normal form. 6/201 useless extension candidates. Maximal degree in co-relation 136. Up to 25 conditions per place. [2022-11-16 12:46:45,192 INFO L137 encePairwiseOnDemand]: 114/125 looper letters, 48 selfloop transitions, 8 changer transitions 10/135 dead transitions. [2022-11-16 12:46:45,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 135 transitions, 450 flow [2022-11-16 12:46:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:46:45,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 12:46:45,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 890 transitions. [2022-11-16 12:46:45,213 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.712 [2022-11-16 12:46:45,214 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 890 transitions. [2022-11-16 12:46:45,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 890 transitions. [2022-11-16 12:46:45,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:45,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 890 transitions. [2022-11-16 12:46:45,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 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) [2022-11-16 12:46:45,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 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) [2022-11-16 12:46:45,239 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 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) [2022-11-16 12:46:45,242 INFO L175 Difference]: Start difference. First operand has 120 places, 111 transitions, 240 flow. Second operand 10 states and 890 transitions. [2022-11-16 12:46:45,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 135 transitions, 450 flow [2022-11-16 12:46:45,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 135 transitions, 418 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:46:45,260 INFO L231 Difference]: Finished difference. Result has 128 places, 113 transitions, 267 flow [2022-11-16 12:46:45,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=267, PETRI_PLACES=128, PETRI_TRANSITIONS=113} [2022-11-16 12:46:45,267 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 8 predicate places. [2022-11-16 12:46:45,268 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 113 transitions, 267 flow [2022-11-16 12:46:45,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:46:45,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:45,270 INFO L209 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] [2022-11-16 12:46:45,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:46:45,271 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 12:46:45,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:45,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1868688449, now seen corresponding path program 2 times [2022-11-16 12:46:45,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:45,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045531420] [2022-11-16 12:46:45,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:45,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:50,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:50,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:50,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045531420] [2022-11-16 12:46:50,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045531420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:50,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:50,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:46:50,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143890734] [2022-11-16 12:46:50,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:50,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:46:50,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:50,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:46:50,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:46:50,227 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-16 12:46:50,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 113 transitions, 267 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:46:50,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:50,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-16 12:46:50,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:50,917 INFO L130 PetriNetUnfolder]: 13/232 cut-off events. [2022-11-16 12:46:50,917 INFO L131 PetriNetUnfolder]: For 50/53 co-relation queries the response was YES. [2022-11-16 12:46:50,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 232 events. 13/232 cut-off events. For 50/53 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 649 event pairs, 3 based on Foata normal form. 2/230 useless extension candidates. Maximal degree in co-relation 371. Up to 34 conditions per place. [2022-11-16 12:46:50,920 INFO L137 encePairwiseOnDemand]: 116/125 looper letters, 47 selfloop transitions, 9 changer transitions 8/133 dead transitions. [2022-11-16 12:46:50,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 133 transitions, 463 flow [2022-11-16 12:46:50,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:46:50,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 12:46:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 720 transitions. [2022-11-16 12:46:50,923 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.72 [2022-11-16 12:46:50,923 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 720 transitions. [2022-11-16 12:46:50,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 720 transitions. [2022-11-16 12:46:50,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:50,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 720 transitions. [2022-11-16 12:46:50,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 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) [2022-11-16 12:46:50,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-16 12:46:50,930 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-16 12:46:50,930 INFO L175 Difference]: Start difference. First operand has 128 places, 113 transitions, 267 flow. Second operand 8 states and 720 transitions. [2022-11-16 12:46:50,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 133 transitions, 463 flow [2022-11-16 12:46:50,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 133 transitions, 447 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-11-16 12:46:50,935 INFO L231 Difference]: Finished difference. Result has 131 places, 114 transitions, 300 flow [2022-11-16 12:46:50,936 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=300, PETRI_PLACES=131, PETRI_TRANSITIONS=114} [2022-11-16 12:46:50,937 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 11 predicate places. [2022-11-16 12:46:50,937 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 114 transitions, 300 flow [2022-11-16 12:46:50,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:46:50,938 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:50,938 INFO L209 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] [2022-11-16 12:46:50,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:46:50,939 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 12:46:50,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:50,939 INFO L85 PathProgramCache]: Analyzing trace with hash -639988517, now seen corresponding path program 3 times [2022-11-16 12:46:50,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:50,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787997836] [2022-11-16 12:46:50,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:50,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:56,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:56,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787997836] [2022-11-16 12:46:56,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787997836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:56,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:56,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:46:56,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814665032] [2022-11-16 12:46:56,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:56,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:46:56,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:56,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:46:56,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:46:56,255 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-16 12:46:56,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 114 transitions, 300 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:46:56,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:56,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-16 12:46:56,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:57,115 INFO L130 PetriNetUnfolder]: 11/213 cut-off events. [2022-11-16 12:46:57,115 INFO L131 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2022-11-16 12:46:57,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 213 events. 11/213 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 516 event pairs, 2 based on Foata normal form. 1/212 useless extension candidates. Maximal degree in co-relation 371. Up to 27 conditions per place. [2022-11-16 12:46:57,118 INFO L137 encePairwiseOnDemand]: 116/125 looper letters, 45 selfloop transitions, 8 changer transitions 10/132 dead transitions. [2022-11-16 12:46:57,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 132 transitions, 493 flow [2022-11-16 12:46:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:46:57,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 12:46:57,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 719 transitions. [2022-11-16 12:46:57,122 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.719 [2022-11-16 12:46:57,124 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 719 transitions. [2022-11-16 12:46:57,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 719 transitions. [2022-11-16 12:46:57,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:57,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 719 transitions. [2022-11-16 12:46:57,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 89.875) internal successors, (719), 8 states have internal predecessors, (719), 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) [2022-11-16 12:46:57,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-16 12:46:57,130 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-16 12:46:57,131 INFO L175 Difference]: Start difference. First operand has 131 places, 114 transitions, 300 flow. Second operand 8 states and 719 transitions. [2022-11-16 12:46:57,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 132 transitions, 493 flow [2022-11-16 12:46:57,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 132 transitions, 465 flow, removed 11 selfloop flow, removed 4 redundant places. [2022-11-16 12:46:57,140 INFO L231 Difference]: Finished difference. Result has 135 places, 113 transitions, 302 flow [2022-11-16 12:46:57,141 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=302, PETRI_PLACES=135, PETRI_TRANSITIONS=113} [2022-11-16 12:46:57,143 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 15 predicate places. [2022-11-16 12:46:57,144 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 113 transitions, 302 flow [2022-11-16 12:46:57,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:46:57,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:57,145 INFO L209 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] [2022-11-16 12:46:57,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:46:57,146 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 12:46:57,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:57,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1028867345, now seen corresponding path program 4 times [2022-11-16 12:46:57,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:57,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562486520] [2022-11-16 12:46:57,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:57,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:01,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:47:01,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:01,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562486520] [2022-11-16 12:47:01,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562486520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:01,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:01,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:47:01,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822676343] [2022-11-16 12:47:01,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:01,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:47:01,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:01,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:47:01,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:47:01,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-16 12:47:01,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 113 transitions, 302 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:47:01,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:01,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-16 12:47:01,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:02,538 INFO L130 PetriNetUnfolder]: 5/153 cut-off events. [2022-11-16 12:47:02,539 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2022-11-16 12:47:02,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 153 events. 5/153 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 196 event pairs, 0 based on Foata normal form. 1/154 useless extension candidates. Maximal degree in co-relation 267. Up to 25 conditions per place. [2022-11-16 12:47:02,540 INFO L137 encePairwiseOnDemand]: 116/125 looper letters, 36 selfloop transitions, 7 changer transitions 11/123 dead transitions. [2022-11-16 12:47:02,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 123 transitions, 449 flow [2022-11-16 12:47:02,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:47:02,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 12:47:02,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 710 transitions. [2022-11-16 12:47:02,543 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.71 [2022-11-16 12:47:02,543 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 710 transitions. [2022-11-16 12:47:02,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 710 transitions. [2022-11-16 12:47:02,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:02,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 710 transitions. [2022-11-16 12:47:02,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 88.75) internal successors, (710), 8 states have internal predecessors, (710), 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) [2022-11-16 12:47:02,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-16 12:47:02,549 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-16 12:47:02,549 INFO L175 Difference]: Start difference. First operand has 135 places, 113 transitions, 302 flow. Second operand 8 states and 710 transitions. [2022-11-16 12:47:02,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 123 transitions, 449 flow [2022-11-16 12:47:02,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 123 transitions, 420 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-11-16 12:47:02,554 INFO L231 Difference]: Finished difference. Result has 134 places, 111 transitions, 283 flow [2022-11-16 12:47:02,554 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=283, PETRI_PLACES=134, PETRI_TRANSITIONS=111} [2022-11-16 12:47:02,555 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 14 predicate places. [2022-11-16 12:47:02,555 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 111 transitions, 283 flow [2022-11-16 12:47:02,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:47:02,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:02,556 INFO L209 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] [2022-11-16 12:47:02,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:47:02,557 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 12:47:02,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:02,557 INFO L85 PathProgramCache]: Analyzing trace with hash -292194155, now seen corresponding path program 5 times [2022-11-16 12:47:02,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:02,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188100359] [2022-11-16 12:47:02,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:02,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:47:08,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:08,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188100359] [2022-11-16 12:47:08,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188100359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:08,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:08,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:47:08,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968615706] [2022-11-16 12:47:08,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:08,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:47:08,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:08,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:47:08,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:47:08,209 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-16 12:47:08,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 111 transitions, 283 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:47:08,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:08,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-16 12:47:08,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:09,289 INFO L130 PetriNetUnfolder]: 1/135 cut-off events. [2022-11-16 12:47:09,289 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-11-16 12:47:09,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 135 events. 1/135 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 106 event pairs, 0 based on Foata normal form. 1/136 useless extension candidates. Maximal degree in co-relation 223. Up to 25 conditions per place. [2022-11-16 12:47:09,293 INFO L137 encePairwiseOnDemand]: 116/125 looper letters, 35 selfloop transitions, 5 changer transitions 10/119 dead transitions. [2022-11-16 12:47:09,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 119 transitions, 416 flow [2022-11-16 12:47:09,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:47:09,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 12:47:09,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 707 transitions. [2022-11-16 12:47:09,296 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.707 [2022-11-16 12:47:09,296 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 707 transitions. [2022-11-16 12:47:09,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 707 transitions. [2022-11-16 12:47:09,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:09,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 707 transitions. [2022-11-16 12:47:09,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 88.375) internal successors, (707), 8 states have internal predecessors, (707), 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) [2022-11-16 12:47:09,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-16 12:47:09,302 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-16 12:47:09,302 INFO L175 Difference]: Start difference. First operand has 134 places, 111 transitions, 283 flow. Second operand 8 states and 707 transitions. [2022-11-16 12:47:09,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 119 transitions, 416 flow [2022-11-16 12:47:09,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 119 transitions, 376 flow, removed 8 selfloop flow, removed 9 redundant places. [2022-11-16 12:47:09,308 INFO L231 Difference]: Finished difference. Result has 132 places, 109 transitions, 260 flow [2022-11-16 12:47:09,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=260, PETRI_PLACES=132, PETRI_TRANSITIONS=109} [2022-11-16 12:47:09,311 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 12 predicate places. [2022-11-16 12:47:09,311 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 109 transitions, 260 flow [2022-11-16 12:47:09,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:47:09,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:09,312 INFO L209 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] [2022-11-16 12:47:09,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:47:09,312 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 12:47:09,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:09,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1300846673, now seen corresponding path program 6 times [2022-11-16 12:47:09,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:09,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918011265] [2022-11-16 12:47:09,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:09,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:47:12,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:12,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918011265] [2022-11-16 12:47:12,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918011265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:12,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:12,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:47:12,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362902517] [2022-11-16 12:47:12,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:12,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:47:12,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:12,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:47:12,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:47:12,769 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-11-16 12:47:12,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 109 transitions, 260 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:47:12,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:12,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-11-16 12:47:12,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:13,460 INFO L130 PetriNetUnfolder]: 0/106 cut-off events. [2022-11-16 12:47:13,460 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-16 12:47:13,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 106 events. 0/106 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 0 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2022-11-16 12:47:13,461 INFO L137 encePairwiseOnDemand]: 116/125 looper letters, 0 selfloop transitions, 0 changer transitions 106/106 dead transitions. [2022-11-16 12:47:13,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 106 transitions, 330 flow [2022-11-16 12:47:13,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:47:13,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 12:47:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 696 transitions. [2022-11-16 12:47:13,463 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.696 [2022-11-16 12:47:13,463 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 696 transitions. [2022-11-16 12:47:13,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 696 transitions. [2022-11-16 12:47:13,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:13,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 696 transitions. [2022-11-16 12:47:13,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 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) [2022-11-16 12:47:13,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-16 12:47:13,468 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-11-16 12:47:13,468 INFO L175 Difference]: Start difference. First operand has 132 places, 109 transitions, 260 flow. Second operand 8 states and 696 transitions. [2022-11-16 12:47:13,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 106 transitions, 330 flow [2022-11-16 12:47:13,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 106 transitions, 306 flow, removed 3 selfloop flow, removed 8 redundant places. [2022-11-16 12:47:13,471 INFO L231 Difference]: Finished difference. Result has 124 places, 0 transitions, 0 flow [2022-11-16 12:47:13,471 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=124, PETRI_TRANSITIONS=0} [2022-11-16 12:47:13,471 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2022-11-16 12:47:13,472 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 0 transitions, 0 flow [2022-11-16 12:47:13,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-11-16 12:47:13,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-16 12:47:13,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-16 12:47:13,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-16 12:47:13,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-16 12:47:13,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:47:13,477 INFO L444 BasicCegarLoop]: Path program histogram: [6] [2022-11-16 12:47:13,480 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:47:13,480 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:47:13,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:47:13 BasicIcfg [2022-11-16 12:47:13,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:47:13,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:47:13,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:47:13,487 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:47:13,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:35" (3/4) ... [2022-11-16 12:47:13,490 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:47:13,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 12:47:13,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 12:47:13,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-16 12:47:13,501 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-16 12:47:13,502 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:47:13,502 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:47:13,502 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:47:13,548 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:47:13,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:47:13,556 INFO L158 Benchmark]: Toolchain (without parser) took 39831.09ms. Allocated memory was 127.9MB in the beginning and 899.7MB in the end (delta: 771.8MB). Free memory was 90.6MB in the beginning and 614.9MB in the end (delta: -524.4MB). Peak memory consumption was 246.9MB. Max. memory is 16.1GB. [2022-11-16 12:47:13,558 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory was 106.8MB in the beginning and 106.7MB in the end (delta: 120.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:47:13,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.88ms. Allocated memory is still 127.9MB. Free memory was 90.4MB in the beginning and 103.5MB in the end (delta: -13.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:47:13,559 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.08ms. Allocated memory is still 127.9MB. Free memory was 103.5MB in the beginning and 100.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:47:13,559 INFO L158 Benchmark]: Boogie Preprocessor took 69.69ms. Allocated memory is still 127.9MB. Free memory was 100.4MB in the beginning and 98.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:47:13,559 INFO L158 Benchmark]: RCFGBuilder took 1585.14ms. Allocated memory is still 127.9MB. Free memory was 98.3MB in the beginning and 74.9MB in the end (delta: 23.4MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2022-11-16 12:47:13,560 INFO L158 Benchmark]: TraceAbstraction took 37650.19ms. Allocated memory was 127.9MB in the beginning and 899.7MB in the end (delta: 771.8MB). Free memory was 74.6MB in the beginning and 618.1MB in the end (delta: -543.5MB). Peak memory consumption was 229.3MB. Max. memory is 16.1GB. [2022-11-16 12:47:13,560 INFO L158 Benchmark]: Witness Printer took 68.48ms. Allocated memory is still 899.7MB. Free memory was 618.1MB in the beginning and 614.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:47:13,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory was 106.8MB in the beginning and 106.7MB in the end (delta: 120.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.88ms. Allocated memory is still 127.9MB. Free memory was 90.4MB in the beginning and 103.5MB in the end (delta: -13.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.08ms. Allocated memory is still 127.9MB. Free memory was 103.5MB in the beginning and 100.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.69ms. Allocated memory is still 127.9MB. Free memory was 100.4MB in the beginning and 98.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1585.14ms. Allocated memory is still 127.9MB. Free memory was 98.3MB in the beginning and 74.9MB in the end (delta: 23.4MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. * TraceAbstraction took 37650.19ms. Allocated memory was 127.9MB in the beginning and 899.7MB in the end (delta: 771.8MB). Free memory was 74.6MB in the beginning and 618.1MB in the end (delta: -543.5MB). Peak memory consumption was 229.3MB. Max. memory is 16.1GB. * Witness Printer took 68.48ms. Allocated memory is still 899.7MB. Free memory was 618.1MB in the beginning and 614.9MB 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: - PositiveResult [Line: 100]: 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 7 procedures, 140 locations, 4 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: 37.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 311 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 311 mSDsluCounter, 679 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 497 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 701 IncrementalHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 182 mSDtfsCounter, 701 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=302occurred in iteration=3, InterpolantAutomatonStates: 50, 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: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 29.8s InterpolantComputationTime, 654 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 648 ConstructedInterpolants, 0 QuantifiedInterpolants, 5496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:47:13,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be73ba38-47b3-4f00-a51c-e3bc07edb47f/bin/uautomizer-tPACEb0tL8/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