./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD --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 841ea5a5ca051cc33dfe29d877ccdea4b63526a0ee61a2de18869a9ba1858c4b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:34:42,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:34:42,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:34:42,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:34:42,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:34:42,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:34:42,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:34:42,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:34:42,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:34:42,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:34:42,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:34:42,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:34:42,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:34:42,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:34:42,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:34:42,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:34:42,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:34:42,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:34:42,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:34:42,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:34:42,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:34:42,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:34:42,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:34:42,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:34:42,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:34:42,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:34:42,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:34:42,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:34:42,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:34:42,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:34:42,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:34:42,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:34:42,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:34:42,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:34:42,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:34:42,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:34:42,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:34:42,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:34:42,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:34:42,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:34:42,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:34:42,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:34:42,562 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:34:42,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:34:42,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:34:42,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:34:42,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:34:42,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:34:42,567 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:34:42,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:34:42,567 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:34:42,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:34:42,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:34:42,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:34:42,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:34:42,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:34:42,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:34:42,571 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:34:42,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:34:42,572 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:34:42,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:34:42,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:34:42,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:34:42,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:34:42,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:34:42,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:34:42,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:34:42,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:34:42,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:34:42,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:34:42,576 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:34:42,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:34:42,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:34:42,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:34:42,579 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_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 841ea5a5ca051cc33dfe29d877ccdea4b63526a0ee61a2de18869a9ba1858c4b [2021-10-28 23:34:42,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:34:42,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:34:42,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:34:42,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:34:42,936 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:34:42,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-10-28 23:34:43,021 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/data/d431eeb0b/70b0b821148649ffb067dd47e28f25c6/FLAG33f685641 [2021-10-28 23:34:43,664 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:34:43,665 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-10-28 23:34:43,675 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/data/d431eeb0b/70b0b821148649ffb067dd47e28f25c6/FLAG33f685641 [2021-10-28 23:34:44,008 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/data/d431eeb0b/70b0b821148649ffb067dd47e28f25c6 [2021-10-28 23:34:44,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:34:44,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:34:44,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:34:44,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:34:44,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:34:44,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ae4bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44, skipping insertion in model container [2021-10-28 23:34:44,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:34:44,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:34:44,368 WARN L228 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_1afdf859-3eb3-4882-b770-440eac7f2f23/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[4007,4020] [2021-10-28 23:34:44,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:34:44,395 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:34:44,442 WARN L228 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_1afdf859-3eb3-4882-b770-440eac7f2f23/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[4007,4020] [2021-10-28 23:34:44,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:34:44,466 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:34:44,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44 WrapperNode [2021-10-28 23:34:44,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:34:44,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:34:44,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:34:44,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:34:44,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:34:44,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:34:44,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:34:44,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:34:44,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:34:44,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:34:44,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:34:44,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:34:44,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44" (1/1) ... [2021-10-28 23:34:44,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:34:44,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:34:44,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:34:44,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:34:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:34:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:34:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:34:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 23:34:44,796 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 23:34:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 23:34:44,796 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 23:34:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-28 23:34:44,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-28 23:34:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-28 23:34:44,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-28 23:34:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:34:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 23:34:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 23:34:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:34:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:34:44,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:34:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:34:44,801 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:34:45,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:34:45,942 INFO L299 CfgBuilder]: Removed 39 assume(true) statements. [2021-10-28 23:34:45,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:34:45 BoogieIcfgContainer [2021-10-28 23:34:45,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:34:45,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:34:45,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:34:45,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:34:45,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:34:44" (1/3) ... [2021-10-28 23:34:45,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60aade31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:34:45, skipping insertion in model container [2021-10-28 23:34:45,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:44" (2/3) ... [2021-10-28 23:34:45,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60aade31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:34:45, skipping insertion in model container [2021-10-28 23:34:45,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:34:45" (3/3) ... [2021-10-28 23:34:45,958 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons3.wvr.c [2021-10-28 23:34:45,965 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:34:45,965 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:34:45,966 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:34:45,966 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:34:46,050 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,051 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,051 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,052 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,052 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,052 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,054 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,054 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,055 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,055 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,055 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,056 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,056 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,056 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,057 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,057 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,057 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,058 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,058 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,058 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,059 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,060 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,060 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,060 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,061 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,061 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,061 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,062 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,062 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,063 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,063 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,063 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,063 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,064 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,064 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,065 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,065 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,065 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,066 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,066 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,066 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,068 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,068 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,069 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,069 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,069 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,069 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,070 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,070 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,070 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,070 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,071 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,072 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,072 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,072 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,072 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,074 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,074 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,074 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,075 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,075 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,076 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,077 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,077 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,077 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,078 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,078 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,079 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,079 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,080 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,080 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,080 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,081 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,081 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,081 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,083 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,084 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,085 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,089 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,089 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,090 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,090 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,090 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,092 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,092 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,093 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,093 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,100 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,100 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,100 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,101 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,101 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,101 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,102 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,102 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,108 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,109 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,110 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,110 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,110 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,111 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,111 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,111 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,111 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,112 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,117 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,118 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,118 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,118 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,119 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,119 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,119 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,119 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,126 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,127 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,127 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,127 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,128 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,128 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,128 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,128 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,129 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,132 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,132 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:34:46,155 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-28 23:34:46,217 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:34:46,225 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 [2021-10-28 23:34:46,226 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-28 23:34:46,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 212 places, 217 transitions, 466 flow [2021-10-28 23:34:46,433 INFO L129 PetriNetUnfolder]: 18/213 cut-off events. [2021-10-28 23:34:46,445 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 23:34:46,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 213 events. 18/213 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 124 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 182. Up to 3 conditions per place. [2021-10-28 23:34:46,454 INFO L82 GeneralOperation]: Start removeDead. Operand has 212 places, 217 transitions, 466 flow [2021-10-28 23:34:46,464 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 201 transitions, 426 flow [2021-10-28 23:34:46,576 INFO L129 PetriNetUnfolder]: 18/200 cut-off events. [2021-10-28 23:34:46,576 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 23:34:46,577 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:34:46,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:46,579 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 23:34:46,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:46,587 INFO L85 PathProgramCache]: Analyzing trace with hash 2067929588, now seen corresponding path program 1 times [2021-10-28 23:34:46,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:46,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594596630] [2021-10-28 23:34:46,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:46,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:34:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:34:47,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:34:47,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594596630] [2021-10-28 23:34:47,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594596630] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:34:47,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:34:47,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:34:47,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985496994] [2021-10-28 23:34:47,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:34:47,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:34:47,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:34:47,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:34:47,046 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 217 [2021-10-28 23:34:47,051 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 201 transitions, 426 flow. Second operand has 2 states, 2 states have (on average 206.0) internal successors, (412), 2 states have internal predecessors, (412), 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) [2021-10-28 23:34:47,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:34:47,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 217 [2021-10-28 23:34:47,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:34:47,107 INFO L129 PetriNetUnfolder]: 6/189 cut-off events. [2021-10-28 23:34:47,107 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 23:34:47,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 189 events. 6/189 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 114 event pairs, 0 based on Foata normal form. 12/188 useless extension candidates. Maximal degree in co-relation 201. Up to 2 conditions per place. [2021-10-28 23:34:47,111 INFO L132 encePairwiseOnDemand]: 205/217 looper letters, 0 selfloop transitions, 0 changer transitions 7/189 dead transitions. [2021-10-28 23:34:47,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 189 transitions, 402 flow [2021-10-28 23:34:47,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:34:47,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-28 23:34:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 420 transitions. [2021-10-28 23:34:47,131 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.967741935483871 [2021-10-28 23:34:47,133 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 420 transitions. [2021-10-28 23:34:47,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 420 transitions. [2021-10-28 23:34:47,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:34:47,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 420 transitions. [2021-10-28 23:34:47,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 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) [2021-10-28 23:34:47,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2021-10-28 23:34:47,156 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2021-10-28 23:34:47,158 INFO L186 Difference]: Start difference. First operand has 196 places, 201 transitions, 426 flow. Second operand 2 states and 420 transitions. [2021-10-28 23:34:47,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 189 transitions, 402 flow [2021-10-28 23:34:47,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 189 transitions, 386 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-10-28 23:34:47,172 INFO L242 Difference]: Finished difference. Result has 189 places, 182 transitions, 372 flow [2021-10-28 23:34:47,175 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=372, PETRI_PLACES=189, PETRI_TRANSITIONS=182} [2021-10-28 23:34:47,177 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, -7 predicate places. [2021-10-28 23:34:47,177 INFO L470 AbstractCegarLoop]: Abstraction has has 189 places, 182 transitions, 372 flow [2021-10-28 23:34:47,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 206.0) internal successors, (412), 2 states have internal predecessors, (412), 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) [2021-10-28 23:34:47,178 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:34:47,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:47,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:34:47,179 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 23:34:47,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:47,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1345815750, now seen corresponding path program 1 times [2021-10-28 23:34:47,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:47,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730615942] [2021-10-28 23:34:47,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:47,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:34:47,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:34:47,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:34:47,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730615942] [2021-10-28 23:34:47,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730615942] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:34:47,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:34:47,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:34:47,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478927745] [2021-10-28 23:34:47,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:34:47,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:34:47,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:34:47,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:34:47,565 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 217 [2021-10-28 23:34:47,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 182 transitions, 372 flow. Second operand has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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) [2021-10-28 23:34:47,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:34:47,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 217 [2021-10-28 23:34:47,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:34:47,740 INFO L129 PetriNetUnfolder]: 94/373 cut-off events. [2021-10-28 23:34:47,740 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:34:47,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 373 events. 94/373 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1008 event pairs, 2 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 504. Up to 59 conditions per place. [2021-10-28 23:34:47,755 INFO L132 encePairwiseOnDemand]: 212/217 looper letters, 22 selfloop transitions, 5 changer transitions 0/197 dead transitions. [2021-10-28 23:34:47,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 197 transitions, 456 flow [2021-10-28 23:34:47,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:34:47,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 23:34:47,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 989 transitions. [2021-10-28 23:34:47,763 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.911520737327189 [2021-10-28 23:34:47,764 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 989 transitions. [2021-10-28 23:34:47,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 989 transitions. [2021-10-28 23:34:47,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:34:47,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 989 transitions. [2021-10-28 23:34:47,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 197.8) internal successors, (989), 5 states have internal predecessors, (989), 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) [2021-10-28 23:34:47,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 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) [2021-10-28 23:34:47,779 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 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) [2021-10-28 23:34:47,779 INFO L186 Difference]: Start difference. First operand has 189 places, 182 transitions, 372 flow. Second operand 5 states and 989 transitions. [2021-10-28 23:34:47,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 197 transitions, 456 flow [2021-10-28 23:34:47,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 197 transitions, 456 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 23:34:47,794 INFO L242 Difference]: Finished difference. Result has 189 places, 185 transitions, 403 flow [2021-10-28 23:34:47,795 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=403, PETRI_PLACES=189, PETRI_TRANSITIONS=185} [2021-10-28 23:34:47,796 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, -7 predicate places. [2021-10-28 23:34:47,796 INFO L470 AbstractCegarLoop]: Abstraction has has 189 places, 185 transitions, 403 flow [2021-10-28 23:34:47,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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) [2021-10-28 23:34:47,797 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:34:47,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:47,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:34:47,798 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 23:34:47,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:47,803 INFO L85 PathProgramCache]: Analyzing trace with hash 811614342, now seen corresponding path program 2 times [2021-10-28 23:34:47,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:47,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960235685] [2021-10-28 23:34:47,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:47,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:34:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:34:48,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:34:48,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960235685] [2021-10-28 23:34:48,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960235685] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:34:48,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:34:48,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:34:48,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385071926] [2021-10-28 23:34:48,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:34:48,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:34:48,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:34:48,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:34:48,083 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 217 [2021-10-28 23:34:48,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 185 transitions, 403 flow. Second operand has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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) [2021-10-28 23:34:48,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:34:48,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 217 [2021-10-28 23:34:48,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:34:48,289 INFO L129 PetriNetUnfolder]: 123/481 cut-off events. [2021-10-28 23:34:48,289 INFO L130 PetriNetUnfolder]: For 91/111 co-relation queries the response was YES. [2021-10-28 23:34:48,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 481 events. 123/481 cut-off events. For 91/111 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1781 event pairs, 11 based on Foata normal form. 0/442 useless extension candidates. Maximal degree in co-relation 771. Up to 85 conditions per place. [2021-10-28 23:34:48,300 INFO L132 encePairwiseOnDemand]: 212/217 looper letters, 24 selfloop transitions, 7 changer transitions 0/201 dead transitions. [2021-10-28 23:34:48,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 201 transitions, 519 flow [2021-10-28 23:34:48,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:34:48,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 23:34:48,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 989 transitions. [2021-10-28 23:34:48,307 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.911520737327189 [2021-10-28 23:34:48,307 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 989 transitions. [2021-10-28 23:34:48,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 989 transitions. [2021-10-28 23:34:48,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:34:48,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 989 transitions. [2021-10-28 23:34:48,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 197.8) internal successors, (989), 5 states have internal predecessors, (989), 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) [2021-10-28 23:34:48,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 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) [2021-10-28 23:34:48,318 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 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) [2021-10-28 23:34:48,319 INFO L186 Difference]: Start difference. First operand has 189 places, 185 transitions, 403 flow. Second operand 5 states and 989 transitions. [2021-10-28 23:34:48,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 201 transitions, 519 flow [2021-10-28 23:34:48,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 201 transitions, 514 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:34:48,333 INFO L242 Difference]: Finished difference. Result has 195 places, 189 transitions, 446 flow [2021-10-28 23:34:48,334 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=446, PETRI_PLACES=195, PETRI_TRANSITIONS=189} [2021-10-28 23:34:48,334 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, -1 predicate places. [2021-10-28 23:34:48,334 INFO L470 AbstractCegarLoop]: Abstraction has has 195 places, 189 transitions, 446 flow [2021-10-28 23:34:48,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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) [2021-10-28 23:34:48,335 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:34:48,335 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:48,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:34:48,336 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 23:34:48,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:48,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1235823084, now seen corresponding path program 3 times [2021-10-28 23:34:48,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:48,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425685343] [2021-10-28 23:34:48,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:48,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:34:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:34:48,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:34:48,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425685343] [2021-10-28 23:34:48,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425685343] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:34:48,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:34:48,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:34:48,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071055131] [2021-10-28 23:34:48,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:34:48,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:34:48,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:34:48,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:34:48,688 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 217 [2021-10-28 23:34:48,691 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 189 transitions, 446 flow. Second operand has 8 states, 8 states have (on average 157.875) internal successors, (1263), 8 states have internal predecessors, (1263), 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) [2021-10-28 23:34:48,691 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:34:48,691 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 217 [2021-10-28 23:34:48,692 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:34:49,245 INFO L129 PetriNetUnfolder]: 357/1000 cut-off events. [2021-10-28 23:34:49,246 INFO L130 PetriNetUnfolder]: For 538/810 co-relation queries the response was YES. [2021-10-28 23:34:49,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2054 conditions, 1000 events. 357/1000 cut-off events. For 538/810 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5376 event pairs, 24 based on Foata normal form. 25/976 useless extension candidates. Maximal degree in co-relation 2044. Up to 186 conditions per place. [2021-10-28 23:34:49,267 INFO L132 encePairwiseOnDemand]: 205/217 looper letters, 70 selfloop transitions, 13 changer transitions 0/221 dead transitions. [2021-10-28 23:34:49,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 221 transitions, 727 flow [2021-10-28 23:34:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:34:49,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-28 23:34:49,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1755 transitions. [2021-10-28 23:34:49,276 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7352325094260578 [2021-10-28 23:34:49,276 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1755 transitions. [2021-10-28 23:34:49,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1755 transitions. [2021-10-28 23:34:49,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:34:49,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1755 transitions. [2021-10-28 23:34:49,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 159.54545454545453) internal successors, (1755), 11 states have internal predecessors, (1755), 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) [2021-10-28 23:34:49,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 217.0) internal successors, (2604), 12 states have internal predecessors, (2604), 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) [2021-10-28 23:34:49,299 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 217.0) internal successors, (2604), 12 states have internal predecessors, (2604), 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) [2021-10-28 23:34:49,299 INFO L186 Difference]: Start difference. First operand has 195 places, 189 transitions, 446 flow. Second operand 11 states and 1755 transitions. [2021-10-28 23:34:49,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 221 transitions, 727 flow [2021-10-28 23:34:49,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 221 transitions, 722 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:34:49,314 INFO L242 Difference]: Finished difference. Result has 207 places, 193 transitions, 513 flow [2021-10-28 23:34:49,315 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=513, PETRI_PLACES=207, PETRI_TRANSITIONS=193} [2021-10-28 23:34:49,315 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 11 predicate places. [2021-10-28 23:34:49,316 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 193 transitions, 513 flow [2021-10-28 23:34:49,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 157.875) internal successors, (1263), 8 states have internal predecessors, (1263), 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) [2021-10-28 23:34:49,317 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:34:49,317 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:49,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:34:49,319 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 23:34:49,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:49,320 INFO L85 PathProgramCache]: Analyzing trace with hash -835216185, now seen corresponding path program 1 times [2021-10-28 23:34:49,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:49,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6281190] [2021-10-28 23:34:49,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:49,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:34:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:34:49,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:34:49,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6281190] [2021-10-28 23:34:49,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6281190] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:34:49,579 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:34:49,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:34:49,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170070180] [2021-10-28 23:34:49,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:34:49,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:34:49,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:34:49,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:34:49,583 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 217 [2021-10-28 23:34:49,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 193 transitions, 513 flow. Second operand has 3 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 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) [2021-10-28 23:34:49,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:34:49,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 217 [2021-10-28 23:34:49,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:34:49,687 INFO L129 PetriNetUnfolder]: 32/341 cut-off events. [2021-10-28 23:34:49,687 INFO L130 PetriNetUnfolder]: For 106/106 co-relation queries the response was YES. [2021-10-28 23:34:49,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 341 events. 32/341 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1097 event pairs, 2 based on Foata normal form. 3/332 useless extension candidates. Maximal degree in co-relation 526. Up to 36 conditions per place. [2021-10-28 23:34:49,694 INFO L132 encePairwiseOnDemand]: 212/217 looper letters, 6 selfloop transitions, 4 changer transitions 0/193 dead transitions. [2021-10-28 23:34:49,694 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 193 transitions, 523 flow [2021-10-28 23:34:49,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:34:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 23:34:49,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2021-10-28 23:34:49,697 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9155145929339478 [2021-10-28 23:34:49,697 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2021-10-28 23:34:49,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2021-10-28 23:34:49,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:34:49,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2021-10-28 23:34:49,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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) [2021-10-28 23:34:49,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 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) [2021-10-28 23:34:49,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 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) [2021-10-28 23:34:49,704 INFO L186 Difference]: Start difference. First operand has 207 places, 193 transitions, 513 flow. Second operand 3 states and 596 transitions. [2021-10-28 23:34:49,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 193 transitions, 523 flow [2021-10-28 23:34:49,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 193 transitions, 504 flow, removed 1 selfloop flow, removed 7 redundant places. [2021-10-28 23:34:49,715 INFO L242 Difference]: Finished difference. Result has 203 places, 193 transitions, 500 flow [2021-10-28 23:34:49,716 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=203, PETRI_TRANSITIONS=193} [2021-10-28 23:34:49,716 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 7 predicate places. [2021-10-28 23:34:49,716 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 193 transitions, 500 flow [2021-10-28 23:34:49,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 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) [2021-10-28 23:34:49,717 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:34:49,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:49,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:34:49,718 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 23:34:49,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:49,719 INFO L85 PathProgramCache]: Analyzing trace with hash 456677025, now seen corresponding path program 1 times [2021-10-28 23:34:49,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:49,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157458206] [2021-10-28 23:34:49,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:49,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:34:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:34:49,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:34:49,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157458206] [2021-10-28 23:34:49,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157458206] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:34:49,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:34:49,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:34:49,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917860509] [2021-10-28 23:34:49,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:34:49,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:34:49,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:34:49,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:34:49,840 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 217 [2021-10-28 23:34:49,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 193 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 states have internal predecessors, (1076), 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) [2021-10-28 23:34:49,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:34:49,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 217 [2021-10-28 23:34:49,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:34:50,111 INFO L129 PetriNetUnfolder]: 34/437 cut-off events. [2021-10-28 23:34:50,111 INFO L130 PetriNetUnfolder]: For 144/152 co-relation queries the response was YES. [2021-10-28 23:34:50,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 437 events. 34/437 cut-off events. For 144/152 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1624 event pairs, 2 based on Foata normal form. 3/424 useless extension candidates. Maximal degree in co-relation 707. Up to 42 conditions per place. [2021-10-28 23:34:50,118 INFO L132 encePairwiseOnDemand]: 209/217 looper letters, 27 selfloop transitions, 6 changer transitions 1/198 dead transitions. [2021-10-28 23:34:50,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 198 transitions, 578 flow [2021-10-28 23:34:50,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:34:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:34:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1266 transitions. [2021-10-28 23:34:50,124 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8334430546412114 [2021-10-28 23:34:50,124 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1266 transitions. [2021-10-28 23:34:50,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1266 transitions. [2021-10-28 23:34:50,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:34:50,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1266 transitions. [2021-10-28 23:34:50,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 180.85714285714286) internal successors, (1266), 7 states have internal predecessors, (1266), 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) [2021-10-28 23:34:50,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 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) [2021-10-28 23:34:50,137 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 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) [2021-10-28 23:34:50,137 INFO L186 Difference]: Start difference. First operand has 203 places, 193 transitions, 500 flow. Second operand 7 states and 1266 transitions. [2021-10-28 23:34:50,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 198 transitions, 578 flow [2021-10-28 23:34:50,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 198 transitions, 574 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:34:50,148 INFO L242 Difference]: Finished difference. Result has 210 places, 194 transitions, 518 flow [2021-10-28 23:34:50,149 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=518, PETRI_PLACES=210, PETRI_TRANSITIONS=194} [2021-10-28 23:34:50,149 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 14 predicate places. [2021-10-28 23:34:50,150 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 194 transitions, 518 flow [2021-10-28 23:34:50,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 states have internal predecessors, (1076), 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) [2021-10-28 23:34:50,151 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:34:50,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:50,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:34:50,151 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 23:34:50,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:50,152 INFO L85 PathProgramCache]: Analyzing trace with hash 223098349, now seen corresponding path program 1 times [2021-10-28 23:34:50,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:50,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609350541] [2021-10-28 23:34:50,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:50,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:34:50,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:34:50,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:34:50,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609350541] [2021-10-28 23:34:50,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609350541] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:34:50,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:34:50,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:34:50,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594446564] [2021-10-28 23:34:50,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:34:50,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:34:50,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:34:50,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:34:50,367 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 217 [2021-10-28 23:34:50,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 194 transitions, 518 flow. Second operand has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 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) [2021-10-28 23:34:50,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:34:50,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 217 [2021-10-28 23:34:50,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:34:50,479 INFO L129 PetriNetUnfolder]: 0/84 cut-off events. [2021-10-28 23:34:50,479 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-10-28 23:34:50,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 84 events. 0/84 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-10-28 23:34:50,480 INFO L132 encePairwiseOnDemand]: 206/217 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2021-10-28 23:34:50,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 84 transitions, 247 flow [2021-10-28 23:34:50,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:34:50,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 23:34:50,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 937 transitions. [2021-10-28 23:34:50,485 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7196620583717358 [2021-10-28 23:34:50,485 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 937 transitions. [2021-10-28 23:34:50,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 937 transitions. [2021-10-28 23:34:50,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:34:50,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 937 transitions. [2021-10-28 23:34:50,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 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) [2021-10-28 23:34:50,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 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) [2021-10-28 23:34:50,496 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 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) [2021-10-28 23:34:50,497 INFO L186 Difference]: Start difference. First operand has 210 places, 194 transitions, 518 flow. Second operand 6 states and 937 transitions. [2021-10-28 23:34:50,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 84 transitions, 247 flow [2021-10-28 23:34:50,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 84 transitions, 229 flow, removed 0 selfloop flow, removed 9 redundant places. [2021-10-28 23:34:50,500 INFO L242 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2021-10-28 23:34:50,500 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2021-10-28 23:34:50,501 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, -94 predicate places. [2021-10-28 23:34:50,501 INFO L470 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2021-10-28 23:34:50,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 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) [2021-10-28 23:34:50,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:34:50,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:34:50,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 23:34:50,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 23:34:50,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-28 23:34:50,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 23:34:50,512 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2021-10-28 23:34:50,515 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:34:50,515 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:34:50,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:34:50 BasicIcfg [2021-10-28 23:34:50,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:34:50,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:34:50,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:34:50,520 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:34:50,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:34:45" (3/4) ... [2021-10-28 23:34:50,524 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:34:50,532 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 23:34:50,532 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 23:34:50,533 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-28 23:34:50,533 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2021-10-28 23:34:50,541 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-10-28 23:34:50,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:34:50,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:34:50,543 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:34:50,612 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:34:50,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:34:50,614 INFO L168 Benchmark]: Toolchain (without parser) took 6599.89 ms. Allocated memory was 94.4 MB in the beginning and 153.1 MB in the end (delta: 58.7 MB). Free memory was 63.4 MB in the beginning and 74.7 MB in the end (delta: -11.3 MB). Peak memory consumption was 46.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:34:50,615 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 48.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:34:50,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.51 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 63.1 MB in the beginning and 94.9 MB in the end (delta: -31.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:34:50,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.96 ms. Allocated memory is still 121.6 MB. Free memory was 94.9 MB in the beginning and 92.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:34:50,617 INFO L168 Benchmark]: Boogie Preprocessor took 101.55 ms. Allocated memory is still 121.6 MB. Free memory was 92.8 MB in the beginning and 90.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:34:50,617 INFO L168 Benchmark]: RCFGBuilder took 1271.46 ms. Allocated memory is still 121.6 MB. Free memory was 90.7 MB in the beginning and 62.7 MB in the end (delta: 28.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:34:50,618 INFO L168 Benchmark]: TraceAbstraction took 4569.92 ms. Allocated memory was 121.6 MB in the beginning and 153.1 MB in the end (delta: 31.5 MB). Free memory was 62.0 MB in the beginning and 78.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:34:50,618 INFO L168 Benchmark]: Witness Printer took 92.82 ms. Allocated memory is still 153.1 MB. Free memory was 78.9 MB in the beginning and 74.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:34:50,622 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 48.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 443.51 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 63.1 MB in the beginning and 94.9 MB in the end (delta: -31.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.96 ms. Allocated memory is still 121.6 MB. Free memory was 94.9 MB in the beginning and 92.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.55 ms. Allocated memory is still 121.6 MB. Free memory was 92.8 MB in the beginning and 90.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1271.46 ms. Allocated memory is still 121.6 MB. Free memory was 90.7 MB in the beginning and 62.7 MB in the end (delta: 28.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4569.92 ms. Allocated memory was 121.6 MB in the beginning and 153.1 MB in the end (delta: 31.5 MB). Free memory was 62.0 MB in the beginning and 78.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Witness Printer took 92.82 ms. Allocated memory is still 153.1 MB. Free memory was 78.9 MB in the beginning and 74.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * 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: 150]: 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 9 procedures, 238 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 148 SDslu, 133 SDs, 0 SdLazy, 275 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=518occurred in iteration=6, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1086 NumberOfCodeBlocks, 1086 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1079 ConstructedInterpolants, 0 QuantifiedInterpolants, 2608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 6/6 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! [2021-10-28 23:34:50,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afdf859-3eb3-4882-b770-440eac7f2f23/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...