./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 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_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/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_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/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_cd2b8233-4171-4b54-9e77-259416e79a44/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 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-2329fc7 [2022-12-13 16:10:33,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:10:33,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:10:33,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:10:33,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:10:33,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:10:33,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:10:33,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:10:33,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:10:33,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:10:33,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:10:33,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:10:33,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:10:33,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:10:33,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:10:33,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:10:33,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:10:33,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:10:33,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:10:33,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:10:33,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:10:33,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:10:33,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:10:33,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:10:33,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:10:33,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:10:33,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:10:33,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:10:33,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:10:33,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:10:33,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:10:33,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:10:33,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:10:33,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:10:33,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:10:33,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:10:33,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:10:33,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:10:33,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:10:33,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:10:33,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:10:33,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 16:10:33,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:10:33,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:10:33,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:10:33,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:10:33,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:10:33,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:10:33,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:10:33,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:10:33,400 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:10:33,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:10:33,400 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:10:33,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:10:33,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:10:33,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:10:33,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:10:33,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:10:33,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:10:33,401 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:10:33,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:10:33,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:10:33,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:10:33,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:10:33,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:10:33,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:10:33,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:10:33,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:10:33,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:10:33,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:10:33,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:10:33,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:10:33,403 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:10:33,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:10:33,403 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:10:33,403 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:10:33,404 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:10:33,404 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_cd2b8233-4171-4b54-9e77-259416e79a44/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 [2022-12-13 16:10:33,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:10:33,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:10:33,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:10:33,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:10:33,616 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:10:33,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2022-12-13 16:10:36,138 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:10:36,290 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:10:36,290 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2022-12-13 16:10:36,295 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8/data/61cb1b469/ba06b39a5bd24a559782524e7b0b8962/FLAGb3ebe606b [2022-12-13 16:10:36,307 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8/data/61cb1b469/ba06b39a5bd24a559782524e7b0b8962 [2022-12-13 16:10:36,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:10:36,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:10:36,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:10:36,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:10:36,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:10:36,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@643adefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36, skipping insertion in model container [2022-12-13 16:10:36,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:10:36,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:10:36,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:10:36,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:10:36,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:10:36,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:10:36,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:10:36,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:10:36,481 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_cd2b8233-4171-4b54-9e77-259416e79a44/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-12-13 16:10:36,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:10:36,499 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:10:36,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:10:36,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:10:36,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:10:36,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:10:36,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:10:36,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:10:36,525 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_cd2b8233-4171-4b54-9e77-259416e79a44/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-12-13 16:10:36,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:10:36,542 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:10:36,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36 WrapperNode [2022-12-13 16:10:36,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:10:36,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:10:36,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:10:36,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:10:36,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,590 INFO L138 Inliner]: procedures = 23, calls = 45, calls flagged for inlining = 17, calls inlined = 39, statements flattened = 349 [2022-12-13 16:10:36,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:10:36,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:10:36,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:10:36,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:10:36,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,619 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:10:36,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:10:36,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:10:36,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:10:36,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (1/1) ... [2022-12-13 16:10:36,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:10:36,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:10:36,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:10:36,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:10:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:10:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 16:10:36,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 16:10:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 16:10:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 16:10:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 16:10:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 16:10:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:10:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:10:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:10:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 16:10:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 16:10:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:10:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:10:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:10:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:10:36,694 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 16:10:36,789 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:10:36,791 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:10:37,178 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:10:37,545 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:10:37,545 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:10:37,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:37 BoogieIcfgContainer [2022-12-13 16:10:37,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:10:37,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:10:37,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:10:37,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:10:37,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:10:36" (1/3) ... [2022-12-13 16:10:37,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7874e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:10:37, skipping insertion in model container [2022-12-13 16:10:37,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:36" (2/3) ... [2022-12-13 16:10:37,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7874e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:10:37, skipping insertion in model container [2022-12-13 16:10:37,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:37" (3/3) ... [2022-12-13 16:10:37,553 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2022-12-13 16:10:37,559 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 16:10:37,567 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:10:37,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 16:10:37,567 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:10:37,628 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 16:10:37,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 125 transitions, 274 flow [2022-12-13 16:10:37,704 INFO L130 PetriNetUnfolder]: 1/122 cut-off events. [2022-12-13 16:10:37,704 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 16:10:37,707 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. [2022-12-13 16:10:37,707 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 125 transitions, 274 flow [2022-12-13 16:10:37,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 111 transitions, 240 flow [2022-12-13 16:10:37,713 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:10:37,721 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 111 transitions, 240 flow [2022-12-13 16:10:37,723 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 111 transitions, 240 flow [2022-12-13 16:10:37,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 111 transitions, 240 flow [2022-12-13 16:10:37,745 INFO L130 PetriNetUnfolder]: 1/111 cut-off events. [2022-12-13 16:10:37,745 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 16:10:37,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 1/111 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-12-13 16:10:37,746 INFO L119 LiptonReduction]: Number of co-enabled transitions 270 [2022-12-13 16:10:46,031 INFO L134 LiptonReduction]: Checked pairs total: 429 [2022-12-13 16:10:46,032 INFO L136 LiptonReduction]: Total number of compositions: 98 [2022-12-13 16:10:46,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:10:46,046 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;@d80f7d5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:10:46,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 16:10:46,053 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2022-12-13 16:10:46,053 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 16:10:46,053 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:10:46,053 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:46,054 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)] === [2022-12-13 16:10:46,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:46,057 INFO L85 PathProgramCache]: Analyzing trace with hash 236358026, now seen corresponding path program 1 times [2022-12-13 16:10:46,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:46,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139482188] [2022-12-13 16:10:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:46,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:48,828 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 16:10:48,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:48,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139482188] [2022-12-13 16:10:48,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139482188] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:48,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:48,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:10:48,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734853483] [2022-12-13 16:10:48,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:48,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:10:48,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:48,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:10:48,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:10:48,950 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 223 [2022-12-13 16:10:48,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:48,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:10:48,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 223 [2022-12-13 16:10:48,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:10:49,302 INFO L130 PetriNetUnfolder]: 38/100 cut-off events. [2022-12-13 16:10:49,302 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-12-13 16:10:49,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 100 events. 38/100 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 282 event pairs, 2 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 169. Up to 38 conditions per place. [2022-12-13 16:10:49,304 INFO L137 encePairwiseOnDemand]: 218/223 looper letters, 32 selfloop transitions, 6 changer transitions 7/45 dead transitions. [2022-12-13 16:10:49,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 228 flow [2022-12-13 16:10:49,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:10:49,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:10:49,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 568 transitions. [2022-12-13 16:10:49,317 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42451420029895365 [2022-12-13 16:10:49,318 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 568 transitions. [2022-12-13 16:10:49,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 568 transitions. [2022-12-13 16:10:49,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:10:49,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 568 transitions. [2022-12-13 16:10:49,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.66666666666667) internal successors, (568), 6 states have internal predecessors, (568), 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 16:10:49,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:49,336 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:49,338 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 6 states and 568 transitions. [2022-12-13 16:10:49,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 45 transitions, 228 flow [2022-12-13 16:10:49,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 45 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 16:10:49,343 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 71 flow [2022-12-13 16:10:49,345 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=38, 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=6, PETRI_FLOW=71, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2022-12-13 16:10:49,349 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2022-12-13 16:10:49,349 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 71 flow [2022-12-13 16:10:49,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:49,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:10:49,350 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:49,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:10:49,350 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)] === [2022-12-13 16:10:49,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:49,351 INFO L85 PathProgramCache]: Analyzing trace with hash -2069858920, now seen corresponding path program 2 times [2022-12-13 16:10:49,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:49,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810190626] [2022-12-13 16:10:49,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:49,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:50,798 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 16:10:50,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:50,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810190626] [2022-12-13 16:10:50,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810190626] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:50,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:50,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:10:50,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812372288] [2022-12-13 16:10:50,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:50,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:10:50,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:50,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:10:50,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:10:50,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 223 [2022-12-13 16:10:50,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:50,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:10:50,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 223 [2022-12-13 16:10:50,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:10:51,218 INFO L130 PetriNetUnfolder]: 38/116 cut-off events. [2022-12-13 16:10:51,218 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-12-13 16:10:51,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 116 events. 38/116 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 405 event pairs, 6 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 309. Up to 58 conditions per place. [2022-12-13 16:10:51,219 INFO L137 encePairwiseOnDemand]: 218/223 looper letters, 30 selfloop transitions, 7 changer transitions 9/46 dead transitions. [2022-12-13 16:10:51,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 46 transitions, 235 flow [2022-12-13 16:10:51,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:10:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:10:51,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 568 transitions. [2022-12-13 16:10:51,223 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42451420029895365 [2022-12-13 16:10:51,223 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 568 transitions. [2022-12-13 16:10:51,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 568 transitions. [2022-12-13 16:10:51,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:10:51,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 568 transitions. [2022-12-13 16:10:51,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.66666666666667) internal successors, (568), 6 states have internal predecessors, (568), 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 16:10:51,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:51,228 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:51,228 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 71 flow. Second operand 6 states and 568 transitions. [2022-12-13 16:10:51,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 46 transitions, 235 flow [2022-12-13 16:10:51,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 46 transitions, 231 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-13 16:10:51,229 INFO L231 Difference]: Finished difference. Result has 34 places, 21 transitions, 100 flow [2022-12-13 16:10:51,229 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=34, PETRI_TRANSITIONS=21} [2022-12-13 16:10:51,230 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2022-12-13 16:10:51,230 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 21 transitions, 100 flow [2022-12-13 16:10:51,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:51,230 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:10:51,230 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:51,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:10:51,231 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)] === [2022-12-13 16:10:51,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:51,231 INFO L85 PathProgramCache]: Analyzing trace with hash -24826400, now seen corresponding path program 3 times [2022-12-13 16:10:51,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:51,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119494941] [2022-12-13 16:10:51,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:51,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:52,475 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 16:10:52,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:52,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119494941] [2022-12-13 16:10:52,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119494941] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:52,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:52,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:10:52,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66285473] [2022-12-13 16:10:52,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:52,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:10:52,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:52,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:10:52,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:10:52,595 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 223 [2022-12-13 16:10:52,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 21 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:52,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:10:52,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 223 [2022-12-13 16:10:52,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:10:52,862 INFO L130 PetriNetUnfolder]: 33/103 cut-off events. [2022-12-13 16:10:52,863 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2022-12-13 16:10:52,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 103 events. 33/103 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 342 event pairs, 2 based on Foata normal form. 1/104 useless extension candidates. Maximal degree in co-relation 334. Up to 51 conditions per place. [2022-12-13 16:10:52,864 INFO L137 encePairwiseOnDemand]: 218/223 looper letters, 27 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2022-12-13 16:10:52,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 257 flow [2022-12-13 16:10:52,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:10:52,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:10:52,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 566 transitions. [2022-12-13 16:10:52,866 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42301943198804187 [2022-12-13 16:10:52,867 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 566 transitions. [2022-12-13 16:10:52,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 566 transitions. [2022-12-13 16:10:52,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:10:52,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 566 transitions. [2022-12-13 16:10:52,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.33333333333333) internal successors, (566), 6 states have internal predecessors, (566), 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 16:10:52,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:52,870 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:52,870 INFO L175 Difference]: Start difference. First operand has 34 places, 21 transitions, 100 flow. Second operand 6 states and 566 transitions. [2022-12-13 16:10:52,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 257 flow [2022-12-13 16:10:52,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 243 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-12-13 16:10:52,873 INFO L231 Difference]: Finished difference. Result has 38 places, 20 transitions, 100 flow [2022-12-13 16:10:52,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=20} [2022-12-13 16:10:52,873 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2022-12-13 16:10:52,874 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 20 transitions, 100 flow [2022-12-13 16:10:52,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:52,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:10:52,874 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:52,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:10:52,875 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)] === [2022-12-13 16:10:52,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:52,875 INFO L85 PathProgramCache]: Analyzing trace with hash 735703380, now seen corresponding path program 4 times [2022-12-13 16:10:52,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:52,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759599784] [2022-12-13 16:10:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:52,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:54,525 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 16:10:54,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:54,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759599784] [2022-12-13 16:10:54,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759599784] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:54,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:54,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:10:54,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032179923] [2022-12-13 16:10:54,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:54,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:10:54,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:54,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:10:54,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:10:54,608 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 223 [2022-12-13 16:10:54,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 20 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:54,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:10:54,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 223 [2022-12-13 16:10:54,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:10:54,876 INFO L130 PetriNetUnfolder]: 17/59 cut-off events. [2022-12-13 16:10:54,876 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2022-12-13 16:10:54,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 59 events. 17/59 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 134 event pairs, 0 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 205. Up to 20 conditions per place. [2022-12-13 16:10:54,877 INFO L137 encePairwiseOnDemand]: 218/223 looper letters, 18 selfloop transitions, 5 changer transitions 13/36 dead transitions. [2022-12-13 16:10:54,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 36 transitions, 219 flow [2022-12-13 16:10:54,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:10:54,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:10:54,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 558 transitions. [2022-12-13 16:10:54,880 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4170403587443946 [2022-12-13 16:10:54,880 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 558 transitions. [2022-12-13 16:10:54,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 558 transitions. [2022-12-13 16:10:54,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:10:54,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 558 transitions. [2022-12-13 16:10:54,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.0) internal successors, (558), 6 states have internal predecessors, (558), 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 16:10:54,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:54,883 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:54,883 INFO L175 Difference]: Start difference. First operand has 38 places, 20 transitions, 100 flow. Second operand 6 states and 558 transitions. [2022-12-13 16:10:54,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 36 transitions, 219 flow [2022-12-13 16:10:54,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 202 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-12-13 16:10:54,885 INFO L231 Difference]: Finished difference. Result has 37 places, 18 transitions, 81 flow [2022-12-13 16:10:54,885 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=37, PETRI_TRANSITIONS=18} [2022-12-13 16:10:54,886 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2022-12-13 16:10:54,886 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 18 transitions, 81 flow [2022-12-13 16:10:54,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:54,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:10:54,886 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:54,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:10:54,887 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)] === [2022-12-13 16:10:54,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:54,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1589393810, now seen corresponding path program 5 times [2022-12-13 16:10:54,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:54,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762463256] [2022-12-13 16:10:54,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:54,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:56,123 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 16:10:56,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:56,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762463256] [2022-12-13 16:10:56,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762463256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:56,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:56,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:10:56,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343390904] [2022-12-13 16:10:56,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:56,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:10:56,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:56,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:10:56,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:10:56,190 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 223 [2022-12-13 16:10:56,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 18 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:56,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:10:56,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 223 [2022-12-13 16:10:56,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:10:56,436 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2022-12-13 16:10:56,436 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-13 16:10:56,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 40 events. 8/40 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 134. Up to 19 conditions per place. [2022-12-13 16:10:56,437 INFO L137 encePairwiseOnDemand]: 218/223 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2022-12-13 16:10:56,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 30 transitions, 178 flow [2022-12-13 16:10:56,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:10:56,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:10:56,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 553 transitions. [2022-12-13 16:10:56,439 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4133034379671151 [2022-12-13 16:10:56,439 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 553 transitions. [2022-12-13 16:10:56,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 553 transitions. [2022-12-13 16:10:56,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:10:56,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 553 transitions. [2022-12-13 16:10:56,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 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 16:10:56,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:56,441 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:56,441 INFO L175 Difference]: Start difference. First operand has 37 places, 18 transitions, 81 flow. Second operand 6 states and 553 transitions. [2022-12-13 16:10:56,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 30 transitions, 178 flow [2022-12-13 16:10:56,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 144 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-12-13 16:10:56,442 INFO L231 Difference]: Finished difference. Result has 33 places, 16 transitions, 56 flow [2022-12-13 16:10:56,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2022-12-13 16:10:56,443 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2022-12-13 16:10:56,443 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 56 flow [2022-12-13 16:10:56,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:56,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:10:56,443 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:56,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:10:56,444 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)] === [2022-12-13 16:10:56,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:56,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1191186696, now seen corresponding path program 6 times [2022-12-13 16:10:56,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:56,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084476958] [2022-12-13 16:10:56,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:56,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:57,962 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 16:10:57,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:57,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084476958] [2022-12-13 16:10:57,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084476958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:57,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:57,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:10:57,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906479989] [2022-12-13 16:10:57,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:57,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:10:57,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:57,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:10:57,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:10:58,028 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 223 [2022-12-13 16:10:58,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 56 flow. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:58,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:10:58,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 223 [2022-12-13 16:10:58,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:10:58,215 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2022-12-13 16:10:58,215 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 16:10:58,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 21 events. 3/21 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 62. Up to 8 conditions per place. [2022-12-13 16:10:58,215 INFO L137 encePairwiseOnDemand]: 218/223 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2022-12-13 16:10:58,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 18 transitions, 94 flow [2022-12-13 16:10:58,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:10:58,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:10:58,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 541 transitions. [2022-12-13 16:10:58,217 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40433482810164423 [2022-12-13 16:10:58,217 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 541 transitions. [2022-12-13 16:10:58,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 541 transitions. [2022-12-13 16:10:58,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:10:58,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 541 transitions. [2022-12-13 16:10:58,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 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 16:10:58,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:58,219 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 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 16:10:58,219 INFO L175 Difference]: Start difference. First operand has 33 places, 16 transitions, 56 flow. Second operand 6 states and 541 transitions. [2022-12-13 16:10:58,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 18 transitions, 94 flow [2022-12-13 16:10:58,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 18 transitions, 82 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-13 16:10:58,220 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2022-12-13 16:10:58,220 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2022-12-13 16:10:58,220 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2022-12-13 16:10:58,220 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2022-12-13 16:10:58,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 16:10:58,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 16:10:58,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 16:10:58,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 16:10:58,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 16:10:58,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:10:58,223 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2022-12-13 16:10:58,225 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:10:58,225 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:10:58,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:10:58 BasicIcfg [2022-12-13 16:10:58,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:10:58,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:10:58,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:10:58,228 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:10:58,228 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:37" (3/4) ... [2022-12-13 16:10:58,230 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 16:10:58,234 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 16:10:58,234 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 16:10:58,234 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 16:10:58,237 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-12-13 16:10:58,237 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 16:10:58,237 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 16:10:58,238 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 16:10:58,263 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:10:58,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:10:58,264 INFO L158 Benchmark]: Toolchain (without parser) took 21953.59ms. Allocated memory was 136.3MB in the beginning and 377.5MB in the end (delta: 241.2MB). Free memory was 104.1MB in the beginning and 231.3MB in the end (delta: -127.2MB). Peak memory consumption was 116.5MB. Max. memory is 16.1GB. [2022-12-13 16:10:58,264 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 136.3MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:10:58,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.03ms. Allocated memory is still 136.3MB. Free memory was 104.1MB in the beginning and 91.6MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 16:10:58,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.80ms. Allocated memory is still 136.3MB. Free memory was 91.6MB in the beginning and 88.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:10:58,265 INFO L158 Benchmark]: Boogie Preprocessor took 33.31ms. Allocated memory is still 136.3MB. Free memory was 88.7MB in the beginning and 86.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:10:58,265 INFO L158 Benchmark]: RCFGBuilder took 921.40ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 86.6MB in the beginning and 113.7MB in the end (delta: -27.1MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2022-12-13 16:10:58,265 INFO L158 Benchmark]: TraceAbstraction took 20679.32ms. Allocated memory was 172.0MB in the beginning and 377.5MB in the end (delta: 205.5MB). Free memory was 112.7MB in the beginning and 234.4MB in the end (delta: -121.7MB). Peak memory consumption was 85.9MB. Max. memory is 16.1GB. [2022-12-13 16:10:58,265 INFO L158 Benchmark]: Witness Printer took 35.52ms. Allocated memory is still 377.5MB. Free memory was 234.4MB in the beginning and 231.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 16:10:58,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 136.3MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.03ms. Allocated memory is still 136.3MB. Free memory was 104.1MB in the beginning and 91.6MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.80ms. Allocated memory is still 136.3MB. Free memory was 91.6MB in the beginning and 88.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.31ms. Allocated memory is still 136.3MB. Free memory was 88.7MB in the beginning and 86.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 921.40ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 86.6MB in the beginning and 113.7MB in the end (delta: -27.1MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * TraceAbstraction took 20679.32ms. Allocated memory was 172.0MB in the beginning and 377.5MB in the end (delta: 205.5MB). Free memory was 112.7MB in the beginning and 234.4MB in the end (delta: -121.7MB). Peak memory consumption was 85.9MB. Max. memory is 16.1GB. * Witness Printer took 35.52ms. Allocated memory is still 377.5MB. Free memory was 234.4MB in the beginning and 231.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.3s, 120 PlacesBefore, 26 PlacesAfterwards, 111 TransitionsBefore, 16 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 8 FixpointIterations, 76 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 98 TotalNumberOfCompositions, 429 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 429, independent: 429, independent conditional: 0, independent unconditional: 429, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 160, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 429, independent: 269, independent conditional: 0, independent unconditional: 269, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 160, unknown conditional: 0, unknown unconditional: 160] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 20.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 399 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 302 mSDsluCounter, 161 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 135 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 805 IncrementalHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 26 mSDtfsCounter, 805 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=2, InterpolantAutomatonStates: 36, 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, 0.8s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2311 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! [2022-12-13 16:10:58,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2b8233-4171-4b54-9e77-259416e79a44/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