./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-time-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-time-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0 --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 fbdf820325bad974beb5f3994ba78abc0ad853157d83dd91eac05e8acb05e8a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:03:22,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:03:22,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:03:22,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:03:22,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:03:22,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:03:22,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:03:22,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:03:22,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:03:22,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:03:22,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:03:22,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:03:22,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:03:22,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:03:22,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:03:22,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:03:22,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:03:22,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:03:22,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:03:22,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:03:22,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:03:22,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:03:22,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:03:22,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:03:22,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:03:22,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:03:22,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:03:22,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:03:22,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:03:22,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:03:22,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:03:22,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:03:22,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:03:22,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:03:22,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:03:22,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:03:22,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:03:22,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:03:22,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:03:22,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:03:22,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:03:22,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 15:03:22,584 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:03:22,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:03:22,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:03:22,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:03:22,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:03:22,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:03:22,587 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:03:22,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:03:22,588 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:03:22,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:03:22,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:03:22,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:03:22,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:03:22,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:03:22,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:03:22,591 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:03:22,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:03:22,592 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:03:22,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:03:22,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:03:22,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:03:22,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:03:22,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:03:22,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:03:22,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:03:22,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:03:22,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:03:22,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:03:22,597 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:03:22,597 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:03:22,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:03:22,598 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:03:22,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbdf820325bad974beb5f3994ba78abc0ad853157d83dd91eac05e8acb05e8a2 [2021-11-22 15:03:22,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:03:22,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:03:22,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:03:22,905 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:03:22,906 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:03:22,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2021-11-22 15:03:23,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/data/1f32b74f9/b4aab5c085ad447d92d4a6066337c2f9/FLAG0d10ece5a [2021-11-22 15:03:23,499 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:03:23,500 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2021-11-22 15:03:23,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/data/1f32b74f9/b4aab5c085ad447d92d4a6066337c2f9/FLAG0d10ece5a [2021-11-22 15:03:23,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/data/1f32b74f9/b4aab5c085ad447d92d4a6066337c2f9 [2021-11-22 15:03:23,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:03:23,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:03:23,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:03:23,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:03:23,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:03:23,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:03:23" (1/1) ... [2021-11-22 15:03:23,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b04864e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:23, skipping insertion in model container [2021-11-22 15:03:23,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:03:23" (1/1) ... [2021-11-22 15:03:23,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:03:23,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:03:24,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/sv-benchmarks/c/weaver/chl-time-subst.wvr.c[2879,2892] [2021-11-22 15:03:24,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:03:24,212 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:03:24,257 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/sv-benchmarks/c/weaver/chl-time-subst.wvr.c[2879,2892] [2021-11-22 15:03:24,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:03:24,277 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:03:24,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24 WrapperNode [2021-11-22 15:03:24,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:03:24,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:03:24,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:03:24,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:03:24,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24" (1/1) ... [2021-11-22 15:03:24,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24" (1/1) ... [2021-11-22 15:03:24,359 INFO L137 Inliner]: procedures = 23, calls = 39, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 214 [2021-11-22 15:03:24,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:03:24,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:03:24,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:03:24,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:03:24,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24" (1/1) ... [2021-11-22 15:03:24,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24" (1/1) ... [2021-11-22 15:03:24,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24" (1/1) ... [2021-11-22 15:03:24,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24" (1/1) ... [2021-11-22 15:03:24,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24" (1/1) ... [2021-11-22 15:03:24,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24" (1/1) ... [2021-11-22 15:03:24,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24" (1/1) ... [2021-11-22 15:03:24,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:03:24,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:03:24,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:03:24,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:03:24,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24" (1/1) ... [2021-11-22 15:03:24,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:03:24,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:03:24,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:03:24,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:03:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:03:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-22 15:03:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-22 15:03:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-22 15:03:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-22 15:03:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-22 15:03:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-22 15:03:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:03:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:03:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:03:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-22 15:03:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-22 15:03:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:03:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:03:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:03:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:03:24,491 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 15:03:24,590 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:03:24,592 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:03:24,988 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:03:25,332 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:03:25,337 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:03:25,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:03:25 BoogieIcfgContainer [2021-11-22 15:03:25,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:03:25,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:03:25,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:03:25,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:03:25,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:03:23" (1/3) ... [2021-11-22 15:03:25,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498555e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:03:25, skipping insertion in model container [2021-11-22 15:03:25,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:24" (2/3) ... [2021-11-22 15:03:25,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498555e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:03:25, skipping insertion in model container [2021-11-22 15:03:25,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:03:25" (3/3) ... [2021-11-22 15:03:25,352 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-time-subst.wvr.c [2021-11-22 15:03:25,357 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-22 15:03:25,357 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:03:25,358 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 15:03:25,358 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-22 15:03:25,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,419 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,419 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,420 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,420 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,420 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,420 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,421 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,421 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,421 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,421 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,421 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,422 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,422 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,423 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,423 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,423 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,423 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,424 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,424 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,424 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,425 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,425 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,425 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,425 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,425 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,426 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,426 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,426 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,427 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,427 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,427 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,428 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,428 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,428 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,428 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,428 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,428 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,429 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,429 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,430 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,430 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,430 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,430 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,431 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,431 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,431 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,431 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,431 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,432 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,432 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,432 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,432 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,432 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,433 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,433 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,433 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,434 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,434 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,434 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,434 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,434 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,435 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,435 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,435 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,435 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,436 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,436 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,436 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,436 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,440 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,440 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,440 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,441 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,441 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,441 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,441 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,441 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,442 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,442 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,442 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,442 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,443 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,446 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,446 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:25,451 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-22 15:03:25,522 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:03:25,530 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:03:25,530 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-22 15:03:25,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 110 transitions, 244 flow [2021-11-22 15:03:25,599 INFO L129 PetriNetUnfolder]: 1/107 cut-off events. [2021-11-22 15:03:25,599 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-22 15:03:25,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 107 events. 1/107 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2021-11-22 15:03:25,602 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 110 transitions, 244 flow [2021-11-22 15:03:25,607 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 96 transitions, 210 flow [2021-11-22 15:03:25,634 INFO L129 PetriNetUnfolder]: 1/95 cut-off events. [2021-11-22 15:03:25,635 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-22 15:03:25,635 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:03:25,636 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:03:25,637 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:03:25,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:03:25,647 INFO L85 PathProgramCache]: Analyzing trace with hash 428084254, now seen corresponding path program 1 times [2021-11-22 15:03:25,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:03:25,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738355345] [2021-11-22 15:03:25,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:03:25,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:03:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:26,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:03:26,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:03:26,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738355345] [2021-11-22 15:03:26,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738355345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:03:26,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:03:26,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 15:03:26,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402527816] [2021-11-22 15:03:26,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:03:26,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 15:03:26,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:03:26,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 15:03:26,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:03:26,906 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-11-22 15:03:26,914 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 96 transitions, 210 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:26,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:03:26,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-11-22 15:03:26,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:03:27,730 INFO L129 PetriNetUnfolder]: 14/186 cut-off events. [2021-11-22 15:03:27,731 INFO L130 PetriNetUnfolder]: For 49/55 co-relation queries the response was YES. [2021-11-22 15:03:27,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 186 events. 14/186 cut-off events. For 49/55 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 425 event pairs, 7 based on Foata normal form. 4/182 useless extension candidates. Maximal degree in co-relation 129. Up to 39 conditions per place. [2021-11-22 15:03:27,735 INFO L132 encePairwiseOnDemand]: 102/110 looper letters, 40 selfloop transitions, 2 changer transitions 10/115 dead transitions. [2021-11-22 15:03:27,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 115 transitions, 376 flow [2021-11-22 15:03:27,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 15:03:27,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-22 15:03:27,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 740 transitions. [2021-11-22 15:03:27,770 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7474747474747475 [2021-11-22 15:03:27,771 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 740 transitions. [2021-11-22 15:03:27,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 740 transitions. [2021-11-22 15:03:27,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:03:27,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 740 transitions. [2021-11-22 15:03:27,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.22222222222223) internal successors, (740), 9 states have internal predecessors, (740), 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) [2021-11-22 15:03:27,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 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) [2021-11-22 15:03:27,798 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 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) [2021-11-22 15:03:27,800 INFO L186 Difference]: Start difference. First operand has 105 places, 96 transitions, 210 flow. Second operand 9 states and 740 transitions. [2021-11-22 15:03:27,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 115 transitions, 376 flow [2021-11-22 15:03:27,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 115 transitions, 348 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-11-22 15:03:27,813 INFO L242 Difference]: Finished difference. Result has 112 places, 95 transitions, 213 flow [2021-11-22 15:03:27,816 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=213, PETRI_PLACES=112, PETRI_TRANSITIONS=95} [2021-11-22 15:03:27,820 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 7 predicate places. [2021-11-22 15:03:27,820 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 95 transitions, 213 flow [2021-11-22 15:03:27,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:27,822 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:03:27,822 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:03:27,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:03:27,823 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:03:27,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:03:27,824 INFO L85 PathProgramCache]: Analyzing trace with hash -397063098, now seen corresponding path program 2 times [2021-11-22 15:03:27,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:03:27,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349810301] [2021-11-22 15:03:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:03:27,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:03:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:03:28,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:03:28,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349810301] [2021-11-22 15:03:28,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349810301] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:03:28,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:03:28,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 15:03:28,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205156177] [2021-11-22 15:03:28,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:03:28,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 15:03:28,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:03:28,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 15:03:28,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:03:28,456 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-11-22 15:03:28,457 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 95 transitions, 213 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:28,457 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:03:28,457 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-11-22 15:03:28,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:03:29,029 INFO L129 PetriNetUnfolder]: 13/212 cut-off events. [2021-11-22 15:03:29,029 INFO L130 PetriNetUnfolder]: For 60/68 co-relation queries the response was YES. [2021-11-22 15:03:29,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 212 events. 13/212 cut-off events. For 60/68 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 648 event pairs, 5 based on Foata normal form. 2/208 useless extension candidates. Maximal degree in co-relation 328. Up to 34 conditions per place. [2021-11-22 15:03:29,034 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 40 selfloop transitions, 3 changer transitions 8/114 dead transitions. [2021-11-22 15:03:29,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 114 transitions, 380 flow [2021-11-22 15:03:29,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:03:29,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-22 15:03:29,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 583 transitions. [2021-11-22 15:03:29,041 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7571428571428571 [2021-11-22 15:03:29,042 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 583 transitions. [2021-11-22 15:03:29,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 583 transitions. [2021-11-22 15:03:29,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:03:29,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 583 transitions. [2021-11-22 15:03:29,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.28571428571429) internal successors, (583), 7 states have internal predecessors, (583), 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) [2021-11-22 15:03:29,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2021-11-22 15:03:29,056 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2021-11-22 15:03:29,057 INFO L186 Difference]: Start difference. First operand has 112 places, 95 transitions, 213 flow. Second operand 7 states and 583 transitions. [2021-11-22 15:03:29,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 114 transitions, 380 flow [2021-11-22 15:03:29,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 114 transitions, 361 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-11-22 15:03:29,067 INFO L242 Difference]: Finished difference. Result has 113 places, 96 transitions, 230 flow [2021-11-22 15:03:29,068 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=230, PETRI_PLACES=113, PETRI_TRANSITIONS=96} [2021-11-22 15:03:29,069 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 8 predicate places. [2021-11-22 15:03:29,069 INFO L470 AbstractCegarLoop]: Abstraction has has 113 places, 96 transitions, 230 flow [2021-11-22 15:03:29,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:29,070 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:03:29,071 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:03:29,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:03:29,072 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:03:29,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:03:29,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1754643884, now seen corresponding path program 3 times [2021-11-22 15:03:29,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:03:29,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543979066] [2021-11-22 15:03:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:03:29,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:03:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:29,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:03:29,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:03:29,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543979066] [2021-11-22 15:03:29,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543979066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:03:29,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:03:29,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 15:03:29,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576635527] [2021-11-22 15:03:29,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:03:29,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 15:03:29,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:03:29,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 15:03:29,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:03:29,905 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-11-22 15:03:29,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 96 transitions, 230 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:29,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:03:29,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-11-22 15:03:29,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:03:30,503 INFO L129 PetriNetUnfolder]: 11/194 cut-off events. [2021-11-22 15:03:30,505 INFO L130 PetriNetUnfolder]: For 93/99 co-relation queries the response was YES. [2021-11-22 15:03:30,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 194 events. 11/194 cut-off events. For 93/99 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 507 event pairs, 3 based on Foata normal form. 2/192 useless extension candidates. Maximal degree in co-relation 326. Up to 34 conditions per place. [2021-11-22 15:03:30,507 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 40 selfloop transitions, 3 changer transitions 10/116 dead transitions. [2021-11-22 15:03:30,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 116 transitions, 415 flow [2021-11-22 15:03:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:03:30,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-22 15:03:30,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 583 transitions. [2021-11-22 15:03:30,511 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7571428571428571 [2021-11-22 15:03:30,511 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 583 transitions. [2021-11-22 15:03:30,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 583 transitions. [2021-11-22 15:03:30,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:03:30,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 583 transitions. [2021-11-22 15:03:30,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.28571428571429) internal successors, (583), 7 states have internal predecessors, (583), 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) [2021-11-22 15:03:30,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2021-11-22 15:03:30,519 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2021-11-22 15:03:30,519 INFO L186 Difference]: Start difference. First operand has 113 places, 96 transitions, 230 flow. Second operand 7 states and 583 transitions. [2021-11-22 15:03:30,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 116 transitions, 415 flow [2021-11-22 15:03:30,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 116 transitions, 393 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-11-22 15:03:30,529 INFO L242 Difference]: Finished difference. Result has 117 places, 96 transitions, 240 flow [2021-11-22 15:03:30,530 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=240, PETRI_PLACES=117, PETRI_TRANSITIONS=96} [2021-11-22 15:03:30,533 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 12 predicate places. [2021-11-22 15:03:30,533 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 96 transitions, 240 flow [2021-11-22 15:03:30,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:30,534 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:03:30,534 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:03:30,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:03:30,535 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:03:30,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:03:30,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1077336608, now seen corresponding path program 4 times [2021-11-22 15:03:30,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:03:30,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292116155] [2021-11-22 15:03:30,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:03:30,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:03:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:31,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:03:31,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:03:31,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292116155] [2021-11-22 15:03:31,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292116155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:03:31,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:03:31,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 15:03:31,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430945894] [2021-11-22 15:03:31,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:03:31,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 15:03:31,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:03:31,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 15:03:31,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:03:31,346 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-11-22 15:03:31,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 96 transitions, 240 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:31,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:03:31,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-11-22 15:03:31,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:03:31,885 INFO L129 PetriNetUnfolder]: 8/157 cut-off events. [2021-11-22 15:03:31,885 INFO L130 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2021-11-22 15:03:31,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 157 events. 8/157 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 279 event pairs, 4 based on Foata normal form. 1/155 useless extension candidates. Maximal degree in co-relation 274. Up to 28 conditions per place. [2021-11-22 15:03:31,887 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 30 selfloop transitions, 1 changer transitions 13/107 dead transitions. [2021-11-22 15:03:31,887 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 107 transitions, 375 flow [2021-11-22 15:03:31,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:03:31,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-22 15:03:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 576 transitions. [2021-11-22 15:03:31,890 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7480519480519481 [2021-11-22 15:03:31,891 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 576 transitions. [2021-11-22 15:03:31,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 576 transitions. [2021-11-22 15:03:31,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:03:31,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 576 transitions. [2021-11-22 15:03:31,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.28571428571429) internal successors, (576), 7 states have internal predecessors, (576), 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) [2021-11-22 15:03:31,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2021-11-22 15:03:31,897 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2021-11-22 15:03:31,897 INFO L186 Difference]: Start difference. First operand has 117 places, 96 transitions, 240 flow. Second operand 7 states and 576 transitions. [2021-11-22 15:03:31,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 107 transitions, 375 flow [2021-11-22 15:03:31,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 107 transitions, 352 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-11-22 15:03:31,902 INFO L242 Difference]: Finished difference. Result has 118 places, 94 transitions, 221 flow [2021-11-22 15:03:31,903 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=221, PETRI_PLACES=118, PETRI_TRANSITIONS=94} [2021-11-22 15:03:31,904 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 13 predicate places. [2021-11-22 15:03:31,904 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 94 transitions, 221 flow [2021-11-22 15:03:31,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:31,905 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:03:31,905 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:03:31,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:03:31,905 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:03:31,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:03:31,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1556560054, now seen corresponding path program 5 times [2021-11-22 15:03:31,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:03:31,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248133369] [2021-11-22 15:03:31,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:03:31,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:03:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:32,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:03:32,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:03:32,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248133369] [2021-11-22 15:03:32,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248133369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:03:32,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:03:32,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 15:03:32,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124069988] [2021-11-22 15:03:32,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:03:32,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 15:03:32,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:03:32,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 15:03:32,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:03:32,290 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-11-22 15:03:32,291 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 94 transitions, 221 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:32,292 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:03:32,292 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-11-22 15:03:32,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:03:32,684 INFO L129 PetriNetUnfolder]: 1/119 cut-off events. [2021-11-22 15:03:32,684 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2021-11-22 15:03:32,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 119 events. 1/119 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 106 event pairs, 0 based on Foata normal form. 1/120 useless extension candidates. Maximal degree in co-relation 189. Up to 23 conditions per place. [2021-11-22 15:03:32,685 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 30 selfloop transitions, 1 changer transitions 9/103 dead transitions. [2021-11-22 15:03:32,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 103 transitions, 344 flow [2021-11-22 15:03:32,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:03:32,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-22 15:03:32,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 573 transitions. [2021-11-22 15:03:32,689 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7441558441558441 [2021-11-22 15:03:32,689 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 573 transitions. [2021-11-22 15:03:32,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 573 transitions. [2021-11-22 15:03:32,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:03:32,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 573 transitions. [2021-11-22 15:03:32,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.85714285714286) internal successors, (573), 7 states have internal predecessors, (573), 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) [2021-11-22 15:03:32,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2021-11-22 15:03:32,697 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2021-11-22 15:03:32,697 INFO L186 Difference]: Start difference. First operand has 118 places, 94 transitions, 221 flow. Second operand 7 states and 573 transitions. [2021-11-22 15:03:32,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 103 transitions, 344 flow [2021-11-22 15:03:32,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 103 transitions, 308 flow, removed 10 selfloop flow, removed 10 redundant places. [2021-11-22 15:03:32,705 INFO L242 Difference]: Finished difference. Result has 114 places, 94 transitions, 213 flow [2021-11-22 15:03:32,706 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=213, PETRI_PLACES=114, PETRI_TRANSITIONS=94} [2021-11-22 15:03:32,708 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 9 predicate places. [2021-11-22 15:03:32,709 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 94 transitions, 213 flow [2021-11-22 15:03:32,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:32,709 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:03:32,710 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:03:32,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:03:32,710 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:03:32,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:03:32,711 INFO L85 PathProgramCache]: Analyzing trace with hash 193387974, now seen corresponding path program 6 times [2021-11-22 15:03:32,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:03:32,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742511132] [2021-11-22 15:03:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:03:32,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:03:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:03:33,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:03:33,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742511132] [2021-11-22 15:03:33,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742511132] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:03:33,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:03:33,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 15:03:33,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371295331] [2021-11-22 15:03:33,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:03:33,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 15:03:33,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:03:33,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 15:03:33,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:03:33,371 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-11-22 15:03:33,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 94 transitions, 213 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:33,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:03:33,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-11-22 15:03:33,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:03:33,775 INFO L129 PetriNetUnfolder]: 1/98 cut-off events. [2021-11-22 15:03:33,775 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-11-22 15:03:33,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 98 events. 1/98 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 1 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 149. Up to 25 conditions per place. [2021-11-22 15:03:33,776 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 0 selfloop transitions, 0 changer transitions 92/92 dead transitions. [2021-11-22 15:03:33,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 92 transitions, 273 flow [2021-11-22 15:03:33,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:03:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-22 15:03:33,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 564 transitions. [2021-11-22 15:03:33,778 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7324675324675325 [2021-11-22 15:03:33,778 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 564 transitions. [2021-11-22 15:03:33,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 564 transitions. [2021-11-22 15:03:33,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:03:33,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 564 transitions. [2021-11-22 15:03:33,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 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) [2021-11-22 15:03:33,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2021-11-22 15:03:33,784 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2021-11-22 15:03:33,784 INFO L186 Difference]: Start difference. First operand has 114 places, 94 transitions, 213 flow. Second operand 7 states and 564 transitions. [2021-11-22 15:03:33,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 92 transitions, 273 flow [2021-11-22 15:03:33,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 92 transitions, 265 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-11-22 15:03:33,786 INFO L242 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2021-11-22 15:03:33,787 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2021-11-22 15:03:33,787 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 4 predicate places. [2021-11-22 15:03:33,788 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2021-11-22 15:03:33,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-11-22 15:03:33,790 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-22 15:03:33,791 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-11-22 15:03:33,791 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-11-22 15:03:33,792 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-11-22 15:03:33,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 15:03:33,796 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2021-11-22 15:03:33,798 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-22 15:03:33,799 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:03:33,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:03:33 BasicIcfg [2021-11-22 15:03:33,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:03:33,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:03:33,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:03:33,803 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:03:33,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:03:25" (3/4) ... [2021-11-22 15:03:33,806 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 15:03:33,812 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-22 15:03:33,812 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-22 15:03:33,812 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-11-22 15:03:33,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-22 15:03:33,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-22 15:03:33,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 15:03:33,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 15:03:33,856 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 15:03:33,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:03:33,857 INFO L158 Benchmark]: Toolchain (without parser) took 9989.54ms. Allocated memory was 88.1MB in the beginning and 174.1MB in the end (delta: 86.0MB). Free memory was 57.2MB in the beginning and 61.9MB in the end (delta: -4.7MB). Peak memory consumption was 79.5MB. Max. memory is 16.1GB. [2021-11-22 15:03:33,857 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 88.1MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 41.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:03:33,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.63ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 57.2MB in the beginning and 93.3MB in the end (delta: -36.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 15:03:33,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.39ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 91.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:03:33,858 INFO L158 Benchmark]: Boogie Preprocessor took 48.41ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 89.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:03:33,859 INFO L158 Benchmark]: RCFGBuilder took 929.91ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 46.6MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2021-11-22 15:03:33,859 INFO L158 Benchmark]: TraceAbstraction took 8460.34ms. Allocated memory was 117.4MB in the beginning and 174.1MB in the end (delta: 56.6MB). Free memory was 46.6MB in the beginning and 66.1MB in the end (delta: -19.5MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2021-11-22 15:03:33,860 INFO L158 Benchmark]: Witness Printer took 53.20ms. Allocated memory is still 174.1MB. Free memory was 66.1MB in the beginning and 61.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 15:03:33,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 88.1MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 41.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.63ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 57.2MB in the beginning and 93.3MB in the end (delta: -36.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.39ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 91.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.41ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 89.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 929.91ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 46.6MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8460.34ms. Allocated memory was 117.4MB in the beginning and 174.1MB in the end (delta: 56.6MB). Free memory was 46.6MB in the beginning and 66.1MB in the end (delta: -19.5MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * Witness Printer took 53.20ms. Allocated memory is still 174.1MB. Free memory was 66.1MB in the beginning and 61.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 93]: 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, 125 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: 8.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 560 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 693 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 722 IncrementalHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 136 mSDtfsCounter, 722 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred in iteration=3, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 564 NumberOfCodeBlocks, 564 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 6307 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! [2021-11-22 15:03:33,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cf917c-fdf3-4f5e-a2f7-aaaac2baa841/bin/uautomizer-w2VwFs6gM0/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