./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix031.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix031.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL --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 c5191c614040da54c6fe77b0fb4d91d943009a345a9252a69568f58113a0aaaf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:19:53,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:19:53,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:19:53,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:19:53,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:19:53,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:19:53,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:19:53,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:19:53,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:19:53,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:19:53,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:19:53,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:19:53,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:19:53,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:19:53,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:19:53,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:19:53,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:19:53,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:19:53,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:19:53,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:19:53,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:19:53,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:19:53,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:19:53,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:19:53,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:19:53,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:19:53,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:19:53,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:19:53,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:19:53,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:19:53,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:19:53,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:19:53,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:19:53,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:19:53,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:19:53,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:19:53,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:19:53,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:19:53,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:19:53,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:19:53,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:19:53,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 05:19:53,416 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:19:53,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:19:53,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:19:53,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:19:53,418 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:19:53,418 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:19:53,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:19:53,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:19:53,419 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:19:53,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:19:53,420 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:19:53,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:19:53,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:19:53,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:19:53,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:19:53,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:19:53,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:19:53,421 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:19:53,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:19:53,422 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:19:53,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:19:53,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:19:53,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:19:53,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:19:53,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:19:53,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:19:53,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:19:53,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:19:53,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:19:53,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:19:53,424 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:19:53,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:19:53,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:19:53,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:19:53,425 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_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5191c614040da54c6fe77b0fb4d91d943009a345a9252a69568f58113a0aaaf [2021-11-19 05:19:53,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:19:53,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:19:53,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:19:53,841 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:19:53,842 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:19:53,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/pthread-wmm/mix031.oepc.i [2021-11-19 05:19:53,919 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/data/15d620f06/e035dcbdfcfc4c4b83f3468f0d9f19a3/FLAGa9f618c41 [2021-11-19 05:19:54,492 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:19:54,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/sv-benchmarks/c/pthread-wmm/mix031.oepc.i [2021-11-19 05:19:54,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/data/15d620f06/e035dcbdfcfc4c4b83f3468f0d9f19a3/FLAGa9f618c41 [2021-11-19 05:19:54,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/data/15d620f06/e035dcbdfcfc4c4b83f3468f0d9f19a3 [2021-11-19 05:19:54,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:19:54,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:19:54,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:19:54,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:19:54,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:19:54,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:54" (1/1) ... [2021-11-19 05:19:54,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8e3692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:54, skipping insertion in model container [2021-11-19 05:19:54,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:54" (1/1) ... [2021-11-19 05:19:54,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:19:54,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:19:55,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/sv-benchmarks/c/pthread-wmm/mix031.oepc.i[945,958] [2021-11-19 05:19:55,409 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:19:55,424 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:19:55,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/sv-benchmarks/c/pthread-wmm/mix031.oepc.i[945,958] [2021-11-19 05:19:55,532 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:19:55,578 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:19:55,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55 WrapperNode [2021-11-19 05:19:55,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:19:55,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:19:55,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:19:55,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:19:55,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55" (1/1) ... [2021-11-19 05:19:55,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55" (1/1) ... [2021-11-19 05:19:55,645 INFO L137 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2021-11-19 05:19:55,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:19:55,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:19:55,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:19:55,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:19:55,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55" (1/1) ... [2021-11-19 05:19:55,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55" (1/1) ... [2021-11-19 05:19:55,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55" (1/1) ... [2021-11-19 05:19:55,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55" (1/1) ... [2021-11-19 05:19:55,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55" (1/1) ... [2021-11-19 05:19:55,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55" (1/1) ... [2021-11-19 05:19:55,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55" (1/1) ... [2021-11-19 05:19:55,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:19:55,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:19:55,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:19:55,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:19:55,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55" (1/1) ... [2021-11-19 05:19:55,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:19:55,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:19:55,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:19:55,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:19:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 05:19:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-19 05:19:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:19:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 05:19:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:19:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-19 05:19:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-19 05:19:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-19 05:19:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-19 05:19:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:19:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-19 05:19:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:19:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:19:55,803 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 05:19:55,942 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:19:55,944 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:19:56,613 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:19:57,020 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:19:57,021 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 05:19:57,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:57 BoogieIcfgContainer [2021-11-19 05:19:57,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:19:57,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:19:57,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:19:57,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:19:57,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:19:54" (1/3) ... [2021-11-19 05:19:57,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28300a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:57, skipping insertion in model container [2021-11-19 05:19:57,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:55" (2/3) ... [2021-11-19 05:19:57,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28300a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:57, skipping insertion in model container [2021-11-19 05:19:57,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:57" (3/3) ... [2021-11-19 05:19:57,038 INFO L111 eAbstractionObserver]: Analyzing ICFG mix031.oepc.i [2021-11-19 05:19:57,045 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 05:19:57,045 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:19:57,045 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 05:19:57,046 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 05:19:57,098 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,098 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,099 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,099 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,099 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,099 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,099 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,099 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,099 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,099 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,100 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,100 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,100 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,100 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,100 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,100 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,101 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,101 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,101 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,101 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,101 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,102 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,102 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,103 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,124 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,124 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,125 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,126 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,126 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,126 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,127 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,127 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,128 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,128 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,129 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,129 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,129 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,130 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,130 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,130 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,134 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,134 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,134 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,135 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,135 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,135 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,136 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,136 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,136 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,136 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,136 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,137 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,137 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,137 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,137 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,137 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,137 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,138 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,138 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,138 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,138 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,138 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,139 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,140 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,140 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,140 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,140 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,141 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,141 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,141 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,141 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,142 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,142 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,142 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,142 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,142 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,142 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,143 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,143 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,143 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,145 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,147 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,150 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,150 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,151 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,152 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,152 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,153 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,153 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,154 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,154 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,159 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,160 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,160 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,160 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,160 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,160 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,160 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,161 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,161 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,161 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,161 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,161 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,161 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,161 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,162 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,162 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,162 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,162 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,162 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,162 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,163 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,163 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,163 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,163 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,163 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,163 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,164 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,166 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,166 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,166 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,167 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,167 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,167 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,167 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,167 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,168 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,168 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,168 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,168 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,168 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,168 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,169 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,169 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,169 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,169 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,177 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,177 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,178 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,178 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,178 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,178 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,178 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,179 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,179 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,179 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,179 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,179 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,181 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,181 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,181 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,182 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,183 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,183 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,183 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,186 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,186 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,186 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,186 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,186 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,187 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,187 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,187 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,187 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,187 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,187 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,188 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,188 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,188 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,188 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,188 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,189 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,189 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,189 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,189 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,189 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,189 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,190 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,190 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,190 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,190 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:19:57,191 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-19 05:19:57,277 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:19:57,287 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 05:19:57,287 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-19 05:19:57,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 103 transitions, 216 flow [2021-11-19 05:19:57,357 INFO L129 PetriNetUnfolder]: 2/101 cut-off events. [2021-11-19 05:19:57,357 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 05:19:57,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2021-11-19 05:19:57,361 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 103 transitions, 216 flow [2021-11-19 05:19:57,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 101 transitions, 208 flow [2021-11-19 05:19:57,380 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-11-19 05:19:57,380 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 05:19:57,380 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:19:57,381 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] [2021-11-19 05:19:57,382 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-19 05:19:57,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:19:57,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1088938305, now seen corresponding path program 1 times [2021-11-19 05:19:57,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:19:57,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367485623] [2021-11-19 05:19:57,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:19:57,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:19:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:19:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:19:57,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:19:57,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367485623] [2021-11-19 05:19:57,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367485623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:19:57,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:19:57,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 05:19:57,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880134610] [2021-11-19 05:19:57,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:19:57,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:19:57,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:19:57,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:19:57,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:19:57,784 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2021-11-19 05:19:57,793 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:57,793 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:19:57,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2021-11-19 05:19:57,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:19:57,999 INFO L129 PetriNetUnfolder]: 18/238 cut-off events. [2021-11-19 05:19:58,006 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-19 05:19:58,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 238 events. 18/238 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 779 event pairs, 5 based on Foata normal form. 10/236 useless extension candidates. Maximal degree in co-relation 238. Up to 31 conditions per place. [2021-11-19 05:19:58,011 INFO L132 encePairwiseOnDemand]: 98/103 looper letters, 10 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2021-11-19 05:19:58,012 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 101 transitions, 235 flow [2021-11-19 05:19:58,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:19:58,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 05:19:58,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2021-11-19 05:19:58,036 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9385113268608414 [2021-11-19 05:19:58,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2021-11-19 05:19:58,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2021-11-19 05:19:58,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:19:58,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2021-11-19 05:19:58,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:58,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:58,064 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:58,066 INFO L186 Difference]: Start difference. First operand has 106 places, 101 transitions, 208 flow. Second operand 3 states and 290 transitions. [2021-11-19 05:19:58,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 101 transitions, 235 flow [2021-11-19 05:19:58,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 101 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-19 05:19:58,078 INFO L242 Difference]: Finished difference. Result has 104 places, 97 transitions, 202 flow [2021-11-19 05:19:58,081 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=104, PETRI_TRANSITIONS=97} [2021-11-19 05:19:58,090 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, -2 predicate places. [2021-11-19 05:19:58,091 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 97 transitions, 202 flow [2021-11-19 05:19:58,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:58,092 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:19:58,092 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] [2021-11-19 05:19:58,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:19:58,093 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-19 05:19:58,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:19:58,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2011429543, now seen corresponding path program 1 times [2021-11-19 05:19:58,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:19:58,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372782272] [2021-11-19 05:19:58,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:19:58,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:19:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:19:58,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:19:58,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:19:58,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372782272] [2021-11-19 05:19:58,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372782272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:19:58,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:19:58,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:19:58,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756349571] [2021-11-19 05:19:58,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:19:58,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:19:58,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:19:58,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:19:58,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:19:58,409 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 103 [2021-11-19 05:19:58,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 97 transitions, 202 flow. Second operand has 7 states, 7 states have (on average 79.85714285714286) internal successors, (559), 7 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:58,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:19:58,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 103 [2021-11-19 05:19:58,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:19:58,999 INFO L129 PetriNetUnfolder]: 292/903 cut-off events. [2021-11-19 05:19:58,999 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2021-11-19 05:19:59,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1462 conditions, 903 events. 292/903 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5472 event pairs, 141 based on Foata normal form. 0/866 useless extension candidates. Maximal degree in co-relation 1406. Up to 235 conditions per place. [2021-11-19 05:19:59,008 INFO L132 encePairwiseOnDemand]: 97/103 looper letters, 23 selfloop transitions, 2 changer transitions 49/141 dead transitions. [2021-11-19 05:19:59,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 141 transitions, 428 flow [2021-11-19 05:19:59,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:19:59,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-19 05:19:59,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 769 transitions. [2021-11-19 05:19:59,014 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8295577130528586 [2021-11-19 05:19:59,014 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 769 transitions. [2021-11-19 05:19:59,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 769 transitions. [2021-11-19 05:19:59,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:19:59,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 769 transitions. [2021-11-19 05:19:59,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.44444444444444) internal successors, (769), 9 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:59,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:59,024 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:59,024 INFO L186 Difference]: Start difference. First operand has 104 places, 97 transitions, 202 flow. Second operand 9 states and 769 transitions. [2021-11-19 05:19:59,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 141 transitions, 428 flow [2021-11-19 05:19:59,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 141 transitions, 418 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-19 05:19:59,031 INFO L242 Difference]: Finished difference. Result has 117 places, 87 transitions, 198 flow [2021-11-19 05:19:59,031 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=198, PETRI_PLACES=117, PETRI_TRANSITIONS=87} [2021-11-19 05:19:59,032 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 11 predicate places. [2021-11-19 05:19:59,032 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 87 transitions, 198 flow [2021-11-19 05:19:59,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.85714285714286) internal successors, (559), 7 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:59,033 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:19:59,033 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] [2021-11-19 05:19:59,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 05:19:59,034 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-19 05:19:59,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:19:59,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1681487690, now seen corresponding path program 1 times [2021-11-19 05:19:59,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:19:59,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071021685] [2021-11-19 05:19:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:19:59,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:19:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:19:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:19:59,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:19:59,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071021685] [2021-11-19 05:19:59,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071021685] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:19:59,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:19:59,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:19:59,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238013772] [2021-11-19 05:19:59,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:19:59,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:19:59,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:19:59,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:19:59,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:19:59,304 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 103 [2021-11-19 05:19:59,305 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 87 transitions, 198 flow. Second operand has 7 states, 7 states have (on average 80.14285714285714) internal successors, (561), 7 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:59,306 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:19:59,306 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 103 [2021-11-19 05:19:59,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:19:59,652 INFO L129 PetriNetUnfolder]: 166/439 cut-off events. [2021-11-19 05:19:59,653 INFO L130 PetriNetUnfolder]: For 125/125 co-relation queries the response was YES. [2021-11-19 05:19:59,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 903 conditions, 439 events. 166/439 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1854 event pairs, 48 based on Foata normal form. 12/434 useless extension candidates. Maximal degree in co-relation 840. Up to 176 conditions per place. [2021-11-19 05:19:59,657 INFO L132 encePairwiseOnDemand]: 95/103 looper letters, 21 selfloop transitions, 4 changer transitions 28/120 dead transitions. [2021-11-19 05:19:59,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 120 transitions, 391 flow [2021-11-19 05:19:59,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 05:19:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-19 05:19:59,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 835 transitions. [2021-11-19 05:19:59,661 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8106796116504854 [2021-11-19 05:19:59,661 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 835 transitions. [2021-11-19 05:19:59,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 835 transitions. [2021-11-19 05:19:59,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:19:59,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 835 transitions. [2021-11-19 05:19:59,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.5) internal successors, (835), 10 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:59,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:59,670 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:59,670 INFO L186 Difference]: Start difference. First operand has 117 places, 87 transitions, 198 flow. Second operand 10 states and 835 transitions. [2021-11-19 05:19:59,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 120 transitions, 391 flow [2021-11-19 05:19:59,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 120 transitions, 357 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-11-19 05:19:59,678 INFO L242 Difference]: Finished difference. Result has 109 places, 87 transitions, 206 flow [2021-11-19 05:19:59,678 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=206, PETRI_PLACES=109, PETRI_TRANSITIONS=87} [2021-11-19 05:19:59,679 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2021-11-19 05:19:59,680 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 87 transitions, 206 flow [2021-11-19 05:19:59,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.14285714285714) internal successors, (561), 7 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:59,680 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:19:59,681 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] [2021-11-19 05:19:59,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 05:19:59,681 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-19 05:19:59,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:19:59,682 INFO L85 PathProgramCache]: Analyzing trace with hash 470557922, now seen corresponding path program 1 times [2021-11-19 05:19:59,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:19:59,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168023547] [2021-11-19 05:19:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:19:59,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:19:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:19:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:19:59,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:19:59,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168023547] [2021-11-19 05:19:59,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168023547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:19:59,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:19:59,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 05:19:59,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928778505] [2021-11-19 05:19:59,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:19:59,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:19:59,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:19:59,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:19:59,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:19:59,852 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 103 [2021-11-19 05:19:59,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 87 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:19:59,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:19:59,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 103 [2021-11-19 05:19:59,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:20:00,255 INFO L129 PetriNetUnfolder]: 167/498 cut-off events. [2021-11-19 05:20:00,255 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2021-11-19 05:20:00,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 498 events. 167/498 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2535 event pairs, 18 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 859. Up to 79 conditions per place. [2021-11-19 05:20:00,260 INFO L132 encePairwiseOnDemand]: 94/103 looper letters, 24 selfloop transitions, 5 changer transitions 40/139 dead transitions. [2021-11-19 05:20:00,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 139 transitions, 450 flow [2021-11-19 05:20:00,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 05:20:00,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-19 05:20:00,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 891 transitions. [2021-11-19 05:20:00,265 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8650485436893204 [2021-11-19 05:20:00,265 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 891 transitions. [2021-11-19 05:20:00,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 891 transitions. [2021-11-19 05:20:00,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:20:00,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 891 transitions. [2021-11-19 05:20:00,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.1) internal successors, (891), 10 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:00,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:00,278 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:00,278 INFO L186 Difference]: Start difference. First operand has 109 places, 87 transitions, 206 flow. Second operand 10 states and 891 transitions. [2021-11-19 05:20:00,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 139 transitions, 450 flow [2021-11-19 05:20:00,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 139 transitions, 430 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-11-19 05:20:00,285 INFO L242 Difference]: Finished difference. Result has 109 places, 88 transitions, 228 flow [2021-11-19 05:20:00,285 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=228, PETRI_PLACES=109, PETRI_TRANSITIONS=88} [2021-11-19 05:20:00,287 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2021-11-19 05:20:00,288 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 88 transitions, 228 flow [2021-11-19 05:20:00,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:00,288 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:20:00,289 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] [2021-11-19 05:20:00,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 05:20:00,289 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-19 05:20:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:20:00,290 INFO L85 PathProgramCache]: Analyzing trace with hash -149400713, now seen corresponding path program 1 times [2021-11-19 05:20:00,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:20:00,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047636817] [2021-11-19 05:20:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:20:00,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:20:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:20:00,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:20:00,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:20:00,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047636817] [2021-11-19 05:20:00,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047636817] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:20:00,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:20:00,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:20:00,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57871028] [2021-11-19 05:20:00,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:20:00,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:20:00,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:20:00,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:20:00,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:20:00,514 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 103 [2021-11-19 05:20:00,515 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 88 transitions, 228 flow. Second operand has 7 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:00,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:20:00,516 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 103 [2021-11-19 05:20:00,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:20:00,845 INFO L129 PetriNetUnfolder]: 73/385 cut-off events. [2021-11-19 05:20:00,845 INFO L130 PetriNetUnfolder]: For 129/131 co-relation queries the response was YES. [2021-11-19 05:20:00,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 773 conditions, 385 events. 73/385 cut-off events. For 129/131 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1755 event pairs, 22 based on Foata normal form. 6/384 useless extension candidates. Maximal degree in co-relation 710. Up to 81 conditions per place. [2021-11-19 05:20:00,849 INFO L132 encePairwiseOnDemand]: 97/103 looper letters, 24 selfloop transitions, 2 changer transitions 16/113 dead transitions. [2021-11-19 05:20:00,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 113 transitions, 366 flow [2021-11-19 05:20:00,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:20:00,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-19 05:20:00,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 610 transitions. [2021-11-19 05:20:00,852 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8460471567267683 [2021-11-19 05:20:00,853 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 610 transitions. [2021-11-19 05:20:00,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 610 transitions. [2021-11-19 05:20:00,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:20:00,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 610 transitions. [2021-11-19 05:20:00,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:00,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 103.0) internal successors, (824), 8 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:00,861 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 103.0) internal successors, (824), 8 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:00,861 INFO L186 Difference]: Start difference. First operand has 109 places, 88 transitions, 228 flow. Second operand 7 states and 610 transitions. [2021-11-19 05:20:00,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 113 transitions, 366 flow [2021-11-19 05:20:00,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 113 transitions, 353 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-11-19 05:20:00,868 INFO L242 Difference]: Finished difference. Result has 109 places, 89 transitions, 234 flow [2021-11-19 05:20:00,868 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=234, PETRI_PLACES=109, PETRI_TRANSITIONS=89} [2021-11-19 05:20:00,872 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2021-11-19 05:20:00,872 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 89 transitions, 234 flow [2021-11-19 05:20:00,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:00,873 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:20:00,873 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] [2021-11-19 05:20:00,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 05:20:00,874 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-19 05:20:00,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:20:00,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1815585173, now seen corresponding path program 2 times [2021-11-19 05:20:00,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:20:00,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541037273] [2021-11-19 05:20:00,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:20:00,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:20:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:20:01,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:20:01,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:20:01,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541037273] [2021-11-19 05:20:01,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541037273] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:20:01,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:20:01,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:20:01,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793219299] [2021-11-19 05:20:01,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:20:01,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:20:01,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:20:01,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:20:01,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:20:01,033 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 103 [2021-11-19 05:20:01,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 89 transitions, 234 flow. Second operand has 7 states, 7 states have (on average 83.85714285714286) internal successors, (587), 7 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:01,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:20:01,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 103 [2021-11-19 05:20:01,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:20:01,272 INFO L129 PetriNetUnfolder]: 60/290 cut-off events. [2021-11-19 05:20:01,272 INFO L130 PetriNetUnfolder]: For 109/109 co-relation queries the response was YES. [2021-11-19 05:20:01,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 290 events. 60/290 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1179 event pairs, 8 based on Foata normal form. 13/299 useless extension candidates. Maximal degree in co-relation 590. Up to 48 conditions per place. [2021-11-19 05:20:01,275 INFO L132 encePairwiseOnDemand]: 95/103 looper letters, 15 selfloop transitions, 7 changer transitions 21/113 dead transitions. [2021-11-19 05:20:01,275 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 113 transitions, 401 flow [2021-11-19 05:20:01,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 05:20:01,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-19 05:20:01,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 864 transitions. [2021-11-19 05:20:01,280 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8388349514563107 [2021-11-19 05:20:01,280 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 864 transitions. [2021-11-19 05:20:01,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 864 transitions. [2021-11-19 05:20:01,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:20:01,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 864 transitions. [2021-11-19 05:20:01,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.4) internal successors, (864), 10 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:01,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:01,290 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:01,290 INFO L186 Difference]: Start difference. First operand has 109 places, 89 transitions, 234 flow. Second operand 10 states and 864 transitions. [2021-11-19 05:20:01,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 113 transitions, 401 flow [2021-11-19 05:20:01,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 113 transitions, 374 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-11-19 05:20:01,295 INFO L242 Difference]: Finished difference. Result has 115 places, 88 transitions, 242 flow [2021-11-19 05:20:01,296 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=242, PETRI_PLACES=115, PETRI_TRANSITIONS=88} [2021-11-19 05:20:01,297 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 9 predicate places. [2021-11-19 05:20:01,297 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 88 transitions, 242 flow [2021-11-19 05:20:01,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.85714285714286) internal successors, (587), 7 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:20:01,298 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:20:01,298 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] [2021-11-19 05:20:01,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 05:20:01,299 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-19 05:20:01,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:20:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash -333657077, now seen corresponding path program 1 times [2021-11-19 05:20:01,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:20:01,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327900387] [2021-11-19 05:20:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:20:01,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:20:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:20:01,387 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:20:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:20:01,580 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:20:01,580 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:20:01,581 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-19 05:20:01,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-19 05:20:01,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2021-11-19 05:20:01,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 5 remaining) [2021-11-19 05:20:01,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-11-19 05:20:01,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 05:20:01,596 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2021-11-19 05:20:01,603 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 05:20:01,603 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:20:01,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:20:01 BasicIcfg [2021-11-19 05:20:01,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:20:01,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:20:01,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:20:01,813 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:20:01,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:57" (3/4) ... [2021-11-19 05:20:01,815 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 05:20:01,953 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 05:20:01,953 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:20:01,954 INFO L158 Benchmark]: Toolchain (without parser) took 7164.71ms. Allocated memory was 96.5MB in the beginning and 155.2MB in the end (delta: 58.7MB). Free memory was 59.0MB in the beginning and 62.2MB in the end (delta: -3.2MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2021-11-19 05:20:01,954 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 76.7MB in the beginning and 76.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:20:01,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 788.51ms. Allocated memory is still 96.5MB. Free memory was 58.8MB in the beginning and 60.2MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:20:01,955 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.62ms. Allocated memory is still 96.5MB. Free memory was 60.2MB in the beginning and 57.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:20:01,956 INFO L158 Benchmark]: Boogie Preprocessor took 59.65ms. Allocated memory is still 96.5MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:20:01,956 INFO L158 Benchmark]: RCFGBuilder took 1317.04ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.6MB in the beginning and 50.5MB in the end (delta: 5.1MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2021-11-19 05:20:01,957 INFO L158 Benchmark]: TraceAbstraction took 4784.05ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 49.8MB in the beginning and 91.5MB in the end (delta: -41.6MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2021-11-19 05:20:01,957 INFO L158 Benchmark]: Witness Printer took 140.74ms. Allocated memory is still 155.2MB. Free memory was 91.5MB in the beginning and 62.2MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-19 05:20:01,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 76.7MB in the beginning and 76.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 788.51ms. Allocated memory is still 96.5MB. Free memory was 58.8MB in the beginning and 60.2MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.62ms. Allocated memory is still 96.5MB. Free memory was 60.2MB in the beginning and 57.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.65ms. Allocated memory is still 96.5MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1317.04ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.6MB in the beginning and 50.5MB in the end (delta: 5.1MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4784.05ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 49.8MB in the beginning and 91.5MB in the end (delta: -41.6MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * Witness Printer took 140.74ms. Allocated memory is still 155.2MB. Free memory was 91.5MB in the beginning and 62.2MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L710] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L712] 0 int __unbuffered_p0_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0] [L714] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0] [L716] 0 int __unbuffered_p1_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0] [L718] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0] [L719] 0 _Bool a$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0] [L720] 0 int a$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0] [L721] 0 _Bool a$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0] [L722] 0 _Bool a$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0] [L723] 0 _Bool a$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0] [L724] 0 _Bool a$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0] [L725] 0 _Bool a$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0] [L726] 0 _Bool a$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0] [L727] 0 _Bool a$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0] [L728] 0 int *a$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}] [L729] 0 int a$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0] [L730] 0 _Bool a$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0] [L731] 0 int a$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0] [L732] 0 _Bool a$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0] [L733] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0] [L734] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0] [L736] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L738] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L740] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L741] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, z=0] [L742] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L827] 0 pthread_t t833; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, t833={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L828] FCALL, FORK 0 pthread_create(&t833, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t833, ((void *)0), P0, ((void *)0))=-1, t833={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L829] 0 pthread_t t834; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, t833={5:0}, t834={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L830] FCALL, FORK 0 pthread_create(&t834, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t834, ((void *)0), P1, ((void *)0))=0, t833={5:0}, t834={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L746] 1 a$w_buff1 = a$w_buff0 [L747] 1 a$w_buff0 = 1 [L748] 1 a$w_buff1_used = a$w_buff0_used [L749] 1 a$w_buff0_used = (_Bool)1 [L750] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L750] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L751] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L752] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L753] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L754] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L757] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L760] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L763] 1 __unbuffered_p0_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L780] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L783] 2 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L786] 2 __unbuffered_p1_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L789] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L790] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L791] 2 a$flush_delayed = weak$$choice2 [L792] 2 a$mem_tmp = a [L793] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff1) [L793] 2 a = !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff1) [L794] EXPR 2 weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff0)) [L794] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff0) [L794] EXPR 2 weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff0)) [L794] 2 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : a$w_buff0)) [L795] EXPR 2 weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff1 : a$w_buff1)) [L795] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff1 : a$w_buff1) [L795] EXPR 2 weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff1 : a$w_buff1)) [L795] 2 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff1 : a$w_buff1)) [L796] EXPR 2 weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used)) [L796] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used) [L796] EXPR 2 weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used)) [L796] 2 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used)) [L797] EXPR 2 weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L797] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L797] EXPR 2 weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L797] 2 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L798] EXPR 2 weak$$choice2 ? a$r_buff0_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff0_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2)) [L798] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff0_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2) [L798] EXPR 2 weak$$choice2 ? a$r_buff0_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff0_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2)) [L798] 2 a$r_buff0_thd2 = weak$$choice2 ? a$r_buff0_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff0_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2)) [L799] EXPR 2 weak$$choice2 ? a$r_buff1_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff1_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L799] EXPR 2 !a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff1_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L799] EXPR 2 weak$$choice2 ? a$r_buff1_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff1_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L799] 2 a$r_buff1_thd2 = weak$$choice2 ? a$r_buff1_thd2 : (!a$w_buff0_used || !a$r_buff0_thd2 && !a$w_buff1_used || !a$r_buff0_thd2 && !a$r_buff1_thd2 ? a$r_buff1_thd2 : (a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L800] 2 __unbuffered_p1_EBX = a [L801] EXPR 2 a$flush_delayed ? a$mem_tmp : a [L801] 2 a = a$flush_delayed ? a$mem_tmp : a [L802] 2 a$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] [L766] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L766] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L767] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L767] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L768] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L768] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L769] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L769] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L770] EXPR 1 a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 [L770] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 [L805] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L805] EXPR 2 a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a [L805] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L805] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L806] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L806] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L807] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L807] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L808] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L808] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L809] EXPR 2 a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 [L809] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 [L773] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] [L812] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] [L832] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t833={5:0}, t834={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] [L834] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] [L834] RET 0 assume_abort_if_not(main$tmp_guard0) [L836] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L836] EXPR 0 a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a [L836] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L836] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L837] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L837] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L838] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L838] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L839] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L839] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L840] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 [L840] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 [L843] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t833={5:0}, t834={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] [L845] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 828]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 830]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 125 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: 4.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 244 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 244 mSDsluCounter, 222 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 411 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 530 IncrementalHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 56 mSDtfsCounter, 530 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=242occurred in iteration=6, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 414 ConstructedInterpolants, 0 QuantifiedInterpolants, 2046 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-19 05:20:02,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cbbd3e-bc16-43a6-b12d-eba93c6fd369/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE