./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc.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_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/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_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/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_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/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 24c46cfa0dbb54d68ea1c1d9e6e82d14a582b1d00782b6decedd8126f489ee67 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:03:11,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:03:11,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:03:11,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:03:11,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:03:11,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:03:11,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:03:11,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:03:11,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:03:11,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:03:11,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:03:11,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:03:11,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:03:11,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:03:11,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:03:11,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:03:11,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:03:11,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:03:11,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:03:11,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:03:11,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:03:11,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:03:11,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:03:11,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:03:11,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:03:11,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:03:11,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:03:11,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:03:11,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:03:11,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:03:11,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:03:11,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:03:11,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:03:11,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:03:11,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:03:11,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:03:11,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:03:11,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:03:11,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:03:11,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:03:11,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:03:11,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:03:11,507 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:03:11,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:03:11,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:03:11,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:03:11,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:03:11,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:03:11,510 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:03:11,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:03:11,511 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:03:11,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:03:11,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:03:11,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:03:11,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:03:11,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:03:11,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:03:11,513 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:03:11,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:03:11,514 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:03:11,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:03:11,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:03:11,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:03:11,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:03:11,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:03:11,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:03:11,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:03:11,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:03:11,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:03:11,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:03:11,516 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:03:11,517 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:03:11,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:03:11,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:03:11,517 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_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24c46cfa0dbb54d68ea1c1d9e6e82d14a582b1d00782b6decedd8126f489ee67 [2021-10-28 23:03:11,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:03:11,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:03:11,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:03:11,875 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:03:11,875 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:03:11,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c [2021-10-28 23:03:11,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/data/f4ea521da/f36fa5b231d843c09606c9d7fe4d9c33/FLAG9b5951f93 [2021-10-28 23:03:12,495 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:03:12,496 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c [2021-10-28 23:03:12,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/data/f4ea521da/f36fa5b231d843c09606c9d7fe4d9c33/FLAG9b5951f93 [2021-10-28 23:03:12,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/data/f4ea521da/f36fa5b231d843c09606c9d7fe4d9c33 [2021-10-28 23:03:12,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:03:12,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:03:12,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:03:12,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:03:12,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:03:12,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:03:12" (1/1) ... [2021-10-28 23:03:12,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66381dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:12, skipping insertion in model container [2021-10-28 23:03:12,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:03:12" (1/1) ... [2021-10-28 23:03:12,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:03:12,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:03:13,138 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_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c[3018,3031] [2021-10-28 23:03:13,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:03:13,155 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:03:13,188 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_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c[3018,3031] [2021-10-28 23:03:13,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:03:13,206 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:03:13,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13 WrapperNode [2021-10-28 23:03:13,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:03:13,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:03:13,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:03:13,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:03:13,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13" (1/1) ... [2021-10-28 23:03:13,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13" (1/1) ... [2021-10-28 23:03:13,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:03:13,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:03:13,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:03:13,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:03:13,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13" (1/1) ... [2021-10-28 23:03:13,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13" (1/1) ... [2021-10-28 23:03:13,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13" (1/1) ... [2021-10-28 23:03:13,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13" (1/1) ... [2021-10-28 23:03:13,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13" (1/1) ... [2021-10-28 23:03:13,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13" (1/1) ... [2021-10-28 23:03:13,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13" (1/1) ... [2021-10-28 23:03:13,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:03:13,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:03:13,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:03:13,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:03:13,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13" (1/1) ... [2021-10-28 23:03:13,308 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:03:13,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:03:13,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:03:13,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:03:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:03:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:03:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:03:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 23:03:13,390 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 23:03:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 23:03:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 23:03:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-28 23:03:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-28 23:03:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-28 23:03:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-28 23:03:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:03:13,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 23:03:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 23:03:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:03:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:03:13,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:03:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:03:13,394 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 23:03:14,060 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:03:14,061 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-28 23:03:14,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:03:14 BoogieIcfgContainer [2021-10-28 23:03:14,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:03:14,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:03:14,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:03:14,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:03:14,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:03:12" (1/3) ... [2021-10-28 23:03:14,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cf4bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:03:14, skipping insertion in model container [2021-10-28 23:03:14,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:13" (2/3) ... [2021-10-28 23:03:14,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cf4bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:03:14, skipping insertion in model container [2021-10-28 23:03:14,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:03:14" (3/3) ... [2021-10-28 23:03:14,078 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc.wvr.c [2021-10-28 23:03:14,088 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:03:14,088 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:03:14,088 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:03:14,089 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:03:14,153 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,154 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,154 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,154 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,154 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,154 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,155 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,155 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,155 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,156 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,158 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,160 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,160 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,161 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,161 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,162 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,162 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,162 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,162 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,163 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,163 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,163 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,163 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,164 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,164 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,164 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,164 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,164 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,165 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,165 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,165 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,165 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,165 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,166 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,166 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,166 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,167 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,167 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,167 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,167 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,167 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,168 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,168 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,168 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,169 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,169 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,169 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,169 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,170 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,170 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,170 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,171 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,171 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,171 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,171 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,172 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,172 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,172 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,173 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,173 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,173 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,173 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,173 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,174 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,174 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,174 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,175 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,175 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,176 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,176 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,179 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,179 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,180 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,181 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,181 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,182 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,182 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,182 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,183 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,190 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,191 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,191 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,191 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,192 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,192 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,192 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,192 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,195 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,195 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,195 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,195 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,196 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,196 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,196 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,196 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,196 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,201 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,201 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,201 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,202 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,202 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,202 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,202 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,202 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,204 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,204 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,205 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,205 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,206 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:03:14,221 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-28 23:03:14,263 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:03:14,268 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 23:03:14,268 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-28 23:03:14,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 159 places, 158 transitions, 348 flow [2021-10-28 23:03:14,419 INFO L129 PetriNetUnfolder]: 12/154 cut-off events. [2021-10-28 23:03:14,419 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 23:03:14,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 154 events. 12/154 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2021-10-28 23:03:14,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 158 transitions, 348 flow [2021-10-28 23:03:14,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 142 transitions, 308 flow [2021-10-28 23:03:14,517 INFO L129 PetriNetUnfolder]: 12/141 cut-off events. [2021-10-28 23:03:14,517 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 23:03:14,517 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:03:14,518 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] [2021-10-28 23:03:14,519 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 23:03:14,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:14,529 INFO L85 PathProgramCache]: Analyzing trace with hash 566831971, now seen corresponding path program 1 times [2021-10-28 23:03:14,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:14,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582620477] [2021-10-28 23:03:14,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:14,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:03:14,913 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 23:03:14,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:14,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582620477] [2021-10-28 23:03:14,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582620477] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:03:14,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:03:14,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:03:14,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723635808] [2021-10-28 23:03:14,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:03:14,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:14,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:03:14,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:03:14,950 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 158 [2021-10-28 23:03:14,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 142 transitions, 308 flow. Second operand has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 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 23:03:14,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:03:14,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 158 [2021-10-28 23:03:14,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:03:15,018 INFO L129 PetriNetUnfolder]: 4/134 cut-off events. [2021-10-28 23:03:15,018 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 23:03:15,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 134 events. 4/134 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 104 event pairs, 0 based on Foata normal form. 8/134 useless extension candidates. Maximal degree in co-relation 146. Up to 2 conditions per place. [2021-10-28 23:03:15,024 INFO L132 encePairwiseOnDemand]: 150/158 looper letters, 0 selfloop transitions, 0 changer transitions 4/134 dead transitions. [2021-10-28 23:03:15,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 134 transitions, 292 flow [2021-10-28 23:03:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:03:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-28 23:03:15,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 306 transitions. [2021-10-28 23:03:15,044 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9683544303797469 [2021-10-28 23:03:15,045 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 306 transitions. [2021-10-28 23:03:15,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 306 transitions. [2021-10-28 23:03:15,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:03:15,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 306 transitions. [2021-10-28 23:03:15,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 153.0) internal successors, (306), 2 states have internal predecessors, (306), 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 23:03:15,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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 23:03:15,068 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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 23:03:15,070 INFO L186 Difference]: Start difference. First operand has 143 places, 142 transitions, 308 flow. Second operand 2 states and 306 transitions. [2021-10-28 23:03:15,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 134 transitions, 292 flow [2021-10-28 23:03:15,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 134 transitions, 276 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-10-28 23:03:15,083 INFO L242 Difference]: Finished difference. Result has 136 places, 130 transitions, 268 flow [2021-10-28 23:03:15,085 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=268, PETRI_PLACES=136, PETRI_TRANSITIONS=130} [2021-10-28 23:03:15,086 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -7 predicate places. [2021-10-28 23:03:15,086 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 130 transitions, 268 flow [2021-10-28 23:03:15,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 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 23:03:15,087 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:03:15,087 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] [2021-10-28 23:03:15,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:03:15,088 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 23:03:15,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash -990773487, now seen corresponding path program 1 times [2021-10-28 23:03:15,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:15,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205425824] [2021-10-28 23:03:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:15,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:03:15,518 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 23:03:15,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:15,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205425824] [2021-10-28 23:03:15,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205425824] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:03:15,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:03:15,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:03:15,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266521874] [2021-10-28 23:03:15,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:03:15,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:15,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:03:15,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:03:15,531 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 158 [2021-10-28 23:03:15,532 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 130 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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 23:03:15,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:03:15,533 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 158 [2021-10-28 23:03:15,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:03:15,762 INFO L129 PetriNetUnfolder]: 260/534 cut-off events. [2021-10-28 23:03:15,762 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:03:15,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 923 conditions, 534 events. 260/534 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2041 event pairs, 76 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 920. Up to 237 conditions per place. [2021-10-28 23:03:15,777 INFO L132 encePairwiseOnDemand]: 152/158 looper letters, 33 selfloop transitions, 5 changer transitions 0/138 dead transitions. [2021-10-28 23:03:15,777 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 138 transitions, 360 flow [2021-10-28 23:03:15,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:03:15,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 23:03:15,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 729 transitions. [2021-10-28 23:03:15,782 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7689873417721519 [2021-10-28 23:03:15,782 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 729 transitions. [2021-10-28 23:03:15,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 729 transitions. [2021-10-28 23:03:15,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:03:15,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 729 transitions. [2021-10-28 23:03:15,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 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 23:03:15,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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 23:03:15,792 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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 23:03:15,793 INFO L186 Difference]: Start difference. First operand has 136 places, 130 transitions, 268 flow. Second operand 6 states and 729 transitions. [2021-10-28 23:03:15,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 138 transitions, 360 flow [2021-10-28 23:03:15,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 138 transitions, 360 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 23:03:15,803 INFO L242 Difference]: Finished difference. Result has 138 places, 131 transitions, 286 flow [2021-10-28 23:03:15,803 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=138, PETRI_TRANSITIONS=131} [2021-10-28 23:03:15,804 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -5 predicate places. [2021-10-28 23:03:15,804 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 131 transitions, 286 flow [2021-10-28 23:03:15,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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 23:03:15,805 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:03:15,805 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] [2021-10-28 23:03:15,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:03:15,806 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 23:03:15,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:15,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2058919056, now seen corresponding path program 1 times [2021-10-28 23:03:15,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:15,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572502260] [2021-10-28 23:03:15,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:15,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:03:15,975 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 23:03:15,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:15,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572502260] [2021-10-28 23:03:15,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572502260] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:03:15,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:03:15,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:03:15,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941862508] [2021-10-28 23:03:15,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:03:15,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:03:15,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:03:15,985 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 158 [2021-10-28 23:03:15,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 131 transitions, 286 flow. Second operand has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 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 23:03:15,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:03:15,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 158 [2021-10-28 23:03:15,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:03:16,268 INFO L129 PetriNetUnfolder]: 318/714 cut-off events. [2021-10-28 23:03:16,269 INFO L130 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2021-10-28 23:03:16,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1257 conditions, 714 events. 318/714 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3099 event pairs, 140 based on Foata normal form. 9/537 useless extension candidates. Maximal degree in co-relation 1252. Up to 365 conditions per place. [2021-10-28 23:03:16,279 INFO L132 encePairwiseOnDemand]: 149/158 looper letters, 25 selfloop transitions, 6 changer transitions 11/146 dead transitions. [2021-10-28 23:03:16,279 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 146 transitions, 404 flow [2021-10-28 23:03:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:03:16,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 23:03:16,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1026 transitions. [2021-10-28 23:03:16,284 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8117088607594937 [2021-10-28 23:03:16,284 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1026 transitions. [2021-10-28 23:03:16,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1026 transitions. [2021-10-28 23:03:16,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:03:16,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1026 transitions. [2021-10-28 23:03:16,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 128.25) internal successors, (1026), 8 states have internal predecessors, (1026), 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 23:03:16,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 158.0) internal successors, (1422), 9 states have internal predecessors, (1422), 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 23:03:16,294 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 158.0) internal successors, (1422), 9 states have internal predecessors, (1422), 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 23:03:16,294 INFO L186 Difference]: Start difference. First operand has 138 places, 131 transitions, 286 flow. Second operand 8 states and 1026 transitions. [2021-10-28 23:03:16,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 146 transitions, 404 flow [2021-10-28 23:03:16,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 146 transitions, 395 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 23:03:16,304 INFO L242 Difference]: Finished difference. Result has 144 places, 132 transitions, 302 flow [2021-10-28 23:03:16,305 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=302, PETRI_PLACES=144, PETRI_TRANSITIONS=132} [2021-10-28 23:03:16,305 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 1 predicate places. [2021-10-28 23:03:16,305 INFO L470 AbstractCegarLoop]: Abstraction has has 144 places, 132 transitions, 302 flow [2021-10-28 23:03:16,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 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 23:03:16,306 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:03:16,307 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] [2021-10-28 23:03:16,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:03:16,307 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 23:03:16,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:16,308 INFO L85 PathProgramCache]: Analyzing trace with hash 784004659, now seen corresponding path program 1 times [2021-10-28 23:03:16,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:16,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888903535] [2021-10-28 23:03:16,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:16,309 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:03:16,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:03:16,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:16,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888903535] [2021-10-28 23:03:16,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888903535] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:03:16,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617936276] [2021-10-28 23:03:16,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:16,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:03:16,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:03:16,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:03:16,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:03:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:03:16,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:03:16,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:03:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:03:17,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617936276] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:03:17,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:03:17,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-28 23:03:17,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383872356] [2021-10-28 23:03:17,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:03:17,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:17,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:03:17,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:03:17,151 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 158 [2021-10-28 23:03:17,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 132 transitions, 302 flow. Second operand has 10 states, 10 states have (on average 125.7) internal successors, (1257), 10 states have internal predecessors, (1257), 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 23:03:17,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:03:17,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 158 [2021-10-28 23:03:17,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:03:17,437 INFO L129 PetriNetUnfolder]: 253/686 cut-off events. [2021-10-28 23:03:17,437 INFO L130 PetriNetUnfolder]: For 98/114 co-relation queries the response was YES. [2021-10-28 23:03:17,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 686 events. 253/686 cut-off events. For 98/114 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3635 event pairs, 75 based on Foata normal form. 16/568 useless extension candidates. Maximal degree in co-relation 1183. Up to 227 conditions per place. [2021-10-28 23:03:17,482 INFO L132 encePairwiseOnDemand]: 150/158 looper letters, 31 selfloop transitions, 7 changer transitions 0/143 dead transitions. [2021-10-28 23:03:17,482 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 143 transitions, 404 flow [2021-10-28 23:03:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:03:17,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 23:03:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1023 transitions. [2021-10-28 23:03:17,486 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8093354430379747 [2021-10-28 23:03:17,487 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1023 transitions. [2021-10-28 23:03:17,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1023 transitions. [2021-10-28 23:03:17,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:03:17,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1023 transitions. [2021-10-28 23:03:17,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 127.875) internal successors, (1023), 8 states have internal predecessors, (1023), 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 23:03:17,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 158.0) internal successors, (1422), 9 states have internal predecessors, (1422), 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 23:03:17,496 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 158.0) internal successors, (1422), 9 states have internal predecessors, (1422), 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 23:03:17,496 INFO L186 Difference]: Start difference. First operand has 144 places, 132 transitions, 302 flow. Second operand 8 states and 1023 transitions. [2021-10-28 23:03:17,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 143 transitions, 404 flow [2021-10-28 23:03:17,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 143 transitions, 388 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-10-28 23:03:17,502 INFO L242 Difference]: Finished difference. Result has 145 places, 134 transitions, 316 flow [2021-10-28 23:03:17,502 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=316, PETRI_PLACES=145, PETRI_TRANSITIONS=134} [2021-10-28 23:03:17,503 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 2 predicate places. [2021-10-28 23:03:17,503 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 134 transitions, 316 flow [2021-10-28 23:03:17,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.7) internal successors, (1257), 10 states have internal predecessors, (1257), 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 23:03:17,504 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:03:17,504 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] [2021-10-28 23:03:17,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:03:17,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:03:17,720 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 23:03:17,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:17,721 INFO L85 PathProgramCache]: Analyzing trace with hash -108140430, now seen corresponding path program 1 times [2021-10-28 23:03:17,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:17,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009982755] [2021-10-28 23:03:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:17,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:03:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:03:17,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:17,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009982755] [2021-10-28 23:03:17,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009982755] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:03:17,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219695367] [2021-10-28 23:03:17,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:17,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:03:17,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:03:17,874 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:03:17,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:03:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:03:18,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:03:18,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:03:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:03:18,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219695367] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:03:18,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:03:18,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-28 23:03:18,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537000111] [2021-10-28 23:03:18,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:03:18,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:18,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:03:18,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:03:18,397 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 158 [2021-10-28 23:03:18,399 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 134 transitions, 316 flow. Second operand has 10 states, 10 states have (on average 125.8) internal successors, (1258), 10 states have internal predecessors, (1258), 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 23:03:18,399 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:03:18,400 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 158 [2021-10-28 23:03:18,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:03:18,694 INFO L129 PetriNetUnfolder]: 254/664 cut-off events. [2021-10-28 23:03:18,694 INFO L130 PetriNetUnfolder]: For 92/165 co-relation queries the response was YES. [2021-10-28 23:03:18,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1225 conditions, 664 events. 254/664 cut-off events. For 92/165 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3818 event pairs, 132 based on Foata normal form. 73/707 useless extension candidates. Maximal degree in co-relation 1217. Up to 253 conditions per place. [2021-10-28 23:03:18,708 INFO L132 encePairwiseOnDemand]: 150/158 looper letters, 31 selfloop transitions, 7 changer transitions 0/144 dead transitions. [2021-10-28 23:03:18,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 144 transitions, 416 flow [2021-10-28 23:03:18,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:03:18,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 23:03:18,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1023 transitions. [2021-10-28 23:03:18,713 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8093354430379747 [2021-10-28 23:03:18,713 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1023 transitions. [2021-10-28 23:03:18,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1023 transitions. [2021-10-28 23:03:18,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:03:18,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1023 transitions. [2021-10-28 23:03:18,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 127.875) internal successors, (1023), 8 states have internal predecessors, (1023), 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 23:03:18,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 158.0) internal successors, (1422), 9 states have internal predecessors, (1422), 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 23:03:18,723 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 158.0) internal successors, (1422), 9 states have internal predecessors, (1422), 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 23:03:18,723 INFO L186 Difference]: Start difference. First operand has 145 places, 134 transitions, 316 flow. Second operand 8 states and 1023 transitions. [2021-10-28 23:03:18,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 144 transitions, 416 flow [2021-10-28 23:03:18,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 144 transitions, 406 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-28 23:03:18,729 INFO L242 Difference]: Finished difference. Result has 148 places, 135 transitions, 328 flow [2021-10-28 23:03:18,729 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=328, PETRI_PLACES=148, PETRI_TRANSITIONS=135} [2021-10-28 23:03:18,730 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 5 predicate places. [2021-10-28 23:03:18,730 INFO L470 AbstractCegarLoop]: Abstraction has has 148 places, 135 transitions, 328 flow [2021-10-28 23:03:18,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.8) internal successors, (1258), 10 states have internal predecessors, (1258), 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 23:03:18,731 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:03:18,731 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] [2021-10-28 23:03:18,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:03:18,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:03:18,947 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 23:03:18,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:18,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1537904737, now seen corresponding path program 1 times [2021-10-28 23:03:18,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:18,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995612854] [2021-10-28 23:03:18,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:18,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:03:19,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:03:19,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:19,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995612854] [2021-10-28 23:03:19,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995612854] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:03:19,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:03:19,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:03:19,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090504224] [2021-10-28 23:03:19,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:03:19,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:19,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:03:19,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:03:19,147 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 158 [2021-10-28 23:03:19,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 135 transitions, 328 flow. Second operand has 8 states, 8 states have (on average 114.375) internal successors, (915), 8 states have internal predecessors, (915), 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 23:03:19,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:03:19,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 158 [2021-10-28 23:03:19,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:03:19,316 INFO L129 PetriNetUnfolder]: 68/294 cut-off events. [2021-10-28 23:03:19,316 INFO L130 PetriNetUnfolder]: For 46/65 co-relation queries the response was YES. [2021-10-28 23:03:19,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 294 events. 68/294 cut-off events. For 46/65 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1209 event pairs, 33 based on Foata normal form. 35/320 useless extension candidates. Maximal degree in co-relation 517. Up to 69 conditions per place. [2021-10-28 23:03:19,319 INFO L132 encePairwiseOnDemand]: 149/158 looper letters, 0 selfloop transitions, 0 changer transitions 120/120 dead transitions. [2021-10-28 23:03:19,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 120 transitions, 356 flow [2021-10-28 23:03:19,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:03:19,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 23:03:19,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1021 transitions. [2021-10-28 23:03:19,323 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7180028129395218 [2021-10-28 23:03:19,324 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1021 transitions. [2021-10-28 23:03:19,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1021 transitions. [2021-10-28 23:03:19,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:03:19,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1021 transitions. [2021-10-28 23:03:19,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.44444444444444) internal successors, (1021), 9 states have internal predecessors, (1021), 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 23:03:19,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 158.0) internal successors, (1580), 10 states have internal predecessors, (1580), 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 23:03:19,332 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 158.0) internal successors, (1580), 10 states have internal predecessors, (1580), 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 23:03:19,332 INFO L186 Difference]: Start difference. First operand has 148 places, 135 transitions, 328 flow. Second operand 9 states and 1021 transitions. [2021-10-28 23:03:19,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 120 transitions, 356 flow [2021-10-28 23:03:19,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 120 transitions, 343 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-10-28 23:03:19,336 INFO L242 Difference]: Finished difference. Result has 132 places, 0 transitions, 0 flow [2021-10-28 23:03:19,336 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=132, PETRI_TRANSITIONS=0} [2021-10-28 23:03:19,336 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -11 predicate places. [2021-10-28 23:03:19,337 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 0 transitions, 0 flow [2021-10-28 23:03:19,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.375) internal successors, (915), 8 states have internal predecessors, (915), 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 23:03:19,340 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:03:19,340 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:03:19,340 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 23:03:19,341 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 23:03:19,341 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-28 23:03:19,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:03:19,345 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-28 23:03:19,349 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:03:19,349 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:03:19,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:03:19 BasicIcfg [2021-10-28 23:03:19,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:03:19,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:03:19,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:03:19,353 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:03:19,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:03:14" (3/4) ... [2021-10-28 23:03:19,357 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:03:19,364 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 23:03:19,365 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 23:03:19,365 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-28 23:03:19,365 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2021-10-28 23:03:19,373 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2021-10-28 23:03:19,373 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:03:19,373 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:03:19,374 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:03:19,419 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:03:19,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:03:19,421 INFO L168 Benchmark]: Toolchain (without parser) took 6581.97 ms. Allocated memory was 119.5 MB in the beginning and 197.1 MB in the end (delta: 77.6 MB). Free memory was 79.8 MB in the beginning and 91.8 MB in the end (delta: -12.0 MB). Peak memory consumption was 64.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:19,421 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 119.5 MB. Free memory was 96.2 MB in the beginning and 96.1 MB in the end (delta: 67.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:03:19,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.60 ms. Allocated memory is still 119.5 MB. Free memory was 79.6 MB in the beginning and 92.2 MB in the end (delta: -12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:19,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.14 ms. Allocated memory is still 119.5 MB. Free memory was 92.2 MB in the beginning and 90.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:19,422 INFO L168 Benchmark]: Boogie Preprocessor took 34.29 ms. Allocated memory is still 119.5 MB. Free memory was 90.5 MB in the beginning and 88.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:19,423 INFO L168 Benchmark]: RCFGBuilder took 776.44 ms. Allocated memory is still 119.5 MB. Free memory was 88.7 MB in the beginning and 66.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:19,424 INFO L168 Benchmark]: TraceAbstraction took 5286.99 ms. Allocated memory was 119.5 MB in the beginning and 197.1 MB in the end (delta: 77.6 MB). Free memory was 66.0 MB in the beginning and 96.0 MB in the end (delta: -30.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:19,424 INFO L168 Benchmark]: Witness Printer took 66.26 ms. Allocated memory is still 197.1 MB. Free memory was 95.0 MB in the beginning and 91.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:19,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 119.5 MB. Free memory was 96.2 MB in the beginning and 96.1 MB in the end (delta: 67.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 365.60 ms. Allocated memory is still 119.5 MB. Free memory was 79.6 MB in the beginning and 92.2 MB in the end (delta: -12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.14 ms. Allocated memory is still 119.5 MB. Free memory was 92.2 MB in the beginning and 90.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.29 ms. Allocated memory is still 119.5 MB. Free memory was 90.5 MB in the beginning and 88.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 776.44 ms. Allocated memory is still 119.5 MB. Free memory was 88.7 MB in the beginning and 66.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5286.99 ms. Allocated memory was 119.5 MB in the beginning and 197.1 MB in the end (delta: 77.6 MB). Free memory was 66.0 MB in the beginning and 96.0 MB in the end (delta: -30.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. * Witness Printer took 66.26 ms. Allocated memory is still 197.1 MB. Free memory was 95.0 MB in the beginning and 91.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 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: 120]: 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, 186 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 325 SDslu, 77 SDs, 0 SdLazy, 451 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 304 GetRequests, 251 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=5, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 949 NumberOfCodeBlocks, 949 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 941 ConstructedInterpolants, 0 QuantifiedInterpolants, 1869 SizeOfPredicates, 10 NumberOfNonLiveVariables, 607 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 11/15 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 23:03:19,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fe609-a5ca-4d2c-b043-7bc4b60f2e4a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...