/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 09:20:58,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 09:20:58,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 09:20:58,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 09:20:58,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 09:20:58,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 09:20:58,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 09:20:58,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 09:20:58,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 09:20:58,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 09:20:58,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 09:20:58,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 09:20:58,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 09:20:58,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 09:20:58,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 09:20:58,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 09:20:58,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 09:20:58,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 09:20:58,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 09:20:58,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 09:20:58,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 09:20:58,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 09:20:58,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 09:20:58,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 09:20:58,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-04 09:20:58,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-04 09:20:58,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-04 09:20:58,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-04 09:20:58,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-04 09:20:58,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-04 09:20:58,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 09:20:58,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 09:20:58,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 09:20:58,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 09:20:58,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 09:20:58,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 09:20:58,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 09:20:58,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 09:20:58,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 09:20:58,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 09:20:58,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 09:20:58,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-04 09:20:58,447 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 09:20:58,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 09:20:58,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 09:20:58,449 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 09:20:58,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 09:20:58,450 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 09:20:58,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 09:20:58,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 09:20:58,451 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 09:20:58,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 09:20:58,452 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 09:20:58,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 09:20:58,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 09:20:58,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 09:20:58,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 09:20:58,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 09:20:58,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 09:20:58,452 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 09:20:58,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 09:20:58,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 09:20:58,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 09:20:58,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 09:20:58,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 09:20:58,453 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 09:20:58,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 09:20:58,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 09:20:58,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 09:20:58,455 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 09:20:58,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 09:20:58,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 09:20:58,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 09:20:58,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 09:20:58,456 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 09:20:58,456 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 09:20:58,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 09:20:58,456 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 09:20:58,456 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 09:20:58,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 09:20:58,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 09:20:58,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 09:20:58,686 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-04 09:20:58,687 INFO L275 PluginConnector]: CDTParser initialized [2022-03-04 09:20:58,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c [2022-03-04 09:20:58,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0378e159f/c4da956741f74cd9be27f87b56026043/FLAG09eda764a [2022-03-04 09:20:59,143 INFO L306 CDTParser]: Found 1 translation units. [2022-03-04 09:20:59,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c [2022-03-04 09:20:59,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0378e159f/c4da956741f74cd9be27f87b56026043/FLAG09eda764a [2022-03-04 09:20:59,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0378e159f/c4da956741f74cd9be27f87b56026043 [2022-03-04 09:20:59,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 09:20:59,162 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-04 09:20:59,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-04 09:20:59,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-04 09:20:59,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-04 09:20:59,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414d953f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59, skipping insertion in model container [2022-03-04 09:20:59,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-04 09:20:59,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-04 09:20:59,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c[2870,2883] [2022-03-04 09:20:59,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 09:20:59,401 INFO L203 MainTranslator]: Completed pre-run [2022-03-04 09:20:59,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c[2870,2883] [2022-03-04 09:20:59,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 09:20:59,433 INFO L208 MainTranslator]: Completed translation [2022-03-04 09:20:59,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59 WrapperNode [2022-03-04 09:20:59,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-04 09:20:59,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 09:20:59,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 09:20:59,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 09:20:59,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,466 INFO L137 Inliner]: procedures = 25, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 163 [2022-03-04 09:20:59,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 09:20:59,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 09:20:59,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 09:20:59,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 09:20:59,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 09:20:59,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 09:20:59,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 09:20:59,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 09:20:59,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59" (1/1) ... [2022-03-04 09:20:59,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 09:20:59,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 09:20:59,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 09:20:59,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 09:20:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-04 09:20:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-04 09:20:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-04 09:20:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-04 09:20:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 09:20:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 09:20:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 09:20:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 09:20:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-04 09:20:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-04 09:20:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-04 09:20:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-04 09:20:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 09:20:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 09:20:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-04 09:20:59,583 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 09:20:59,666 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 09:20:59,668 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 09:20:59,937 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 09:21:00,045 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 09:21:00,045 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-04 09:21:00,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 09:21:00 BoogieIcfgContainer [2022-03-04 09:21:00,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 09:21:00,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 09:21:00,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 09:21:00,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 09:21:00,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:20:59" (1/3) ... [2022-03-04 09:21:00,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647fbf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:21:00, skipping insertion in model container [2022-03-04 09:21:00,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:20:59" (2/3) ... [2022-03-04 09:21:00,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647fbf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:21:00, skipping insertion in model container [2022-03-04 09:21:00,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 09:21:00" (3/3) ... [2022-03-04 09:21:00,058 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-2-nl.wvr.c [2022-03-04 09:21:00,063 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 09:21:00,063 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 09:21:00,063 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 09:21:00,064 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 09:21:00,096 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,097 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,097 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,097 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,098 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,098 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,098 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,098 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,101 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,101 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,101 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,101 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,101 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,102 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,102 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,102 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,103 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,103 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,103 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,103 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,103 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,103 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,104 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,104 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,104 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,104 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,104 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,105 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,105 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,105 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,106 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,106 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,106 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,106 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,106 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,106 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,107 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,107 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,107 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,107 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,107 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,108 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,108 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,108 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,108 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,114 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,114 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,114 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,114 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,114 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,115 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,115 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,115 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,115 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,115 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,117 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,117 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,117 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,117 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,117 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 09:21:00,120 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-04 09:21:00,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 09:21:00,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 09:21:00,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 09:21:00,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 09:21:00,200 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 09:21:00,207 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-04 09:21:00,208 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 09:21:00,341 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 141 transitions and produced 142 states. [2022-03-04 09:21:00,343 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 09:21:00,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 09:21:00,348 INFO L85 PathProgramCache]: Analyzing trace with hash -128122346, now seen corresponding path program 1 times [2022-03-04 09:21:00,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 09:21:00,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950778916] [2022-03-04 09:21:00,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 09:21:00,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 09:21:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 09:21:00,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 09:21:00,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 09:21:00,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950778916] [2022-03-04 09:21:00,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950778916] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 09:21:00,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 09:21:00,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-04 09:21:00,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769411202] [2022-03-04 09:21:00,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 09:21:00,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-04 09:21:00,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 09:21:00,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-04 09:21:00,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-04 09:21:00,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:00,564 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 09:21:00,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 09:21:00,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:00,643 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 150 transitions and produced 151 states. [2022-03-04 09:21:00,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:00,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 09:21:00,644 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 09:21:00,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 09:21:00,645 INFO L85 PathProgramCache]: Analyzing trace with hash -651218867, now seen corresponding path program 1 times [2022-03-04 09:21:00,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 09:21:00,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600480254] [2022-03-04 09:21:00,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 09:21:00,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 09:21:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 09:21:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 09:21:00,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 09:21:00,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600480254] [2022-03-04 09:21:00,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600480254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 09:21:00,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 09:21:00,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-04 09:21:00,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267030524] [2022-03-04 09:21:00,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 09:21:00,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-04 09:21:00,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 09:21:00,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-04 09:21:00,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-04 09:21:00,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:00,837 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 09:21:00,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 09:21:00,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:00,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:08,425 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 34539 transitions and produced 34540 states. [2022-03-04 09:21:08,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:08,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 09:21:08,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-04 09:21:08,427 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 09:21:08,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 09:21:08,428 INFO L85 PathProgramCache]: Analyzing trace with hash 55265672, now seen corresponding path program 1 times [2022-03-04 09:21:08,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 09:21:08,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098458273] [2022-03-04 09:21:08,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 09:21:08,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 09:21:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 09:21:09,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-04 09:21:09,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 09:21:09,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098458273] [2022-03-04 09:21:09,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098458273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 09:21:09,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 09:21:09,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-04 09:21:09,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422123338] [2022-03-04 09:21:09,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 09:21:09,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-04 09:21:09,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 09:21:09,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-04 09:21:09,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-03-04 09:21:09,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:09,365 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 09:21:09,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.1875) internal successors, (115), 16 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 09:21:09,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:09,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 09:21:09,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:17,548 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 34675 transitions and produced 34676 states. [2022-03-04 09:21:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 09:21:17,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-04 09:21:17,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-04 09:21:17,549 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 09:21:17,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 09:21:17,550 INFO L85 PathProgramCache]: Analyzing trace with hash 416617960, now seen corresponding path program 1 times [2022-03-04 09:21:17,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 09:21:17,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347622010] [2022-03-04 09:21:17,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 09:21:17,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 09:21:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 09:21:17,717 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-04 09:21:17,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 09:21:17,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347622010] [2022-03-04 09:21:17,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347622010] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 09:21:17,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394604640] [2022-03-04 09:21:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 09:21:17,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 09:21:17,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 09:21:17,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 09:21:17,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 09:21:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 09:21:17,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-04 09:21:17,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 09:21:18,449 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 09:21:18,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 09:21:19,171 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 09:21:19,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394604640] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 09:21:19,173 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 09:21:19,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 22 [2022-03-04 09:21:19,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684636244] [2022-03-04 09:21:19,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 09:21:19,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-04 09:21:19,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 09:21:19,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-04 09:21:19,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-03-04 09:21:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:19,177 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 09:21:19,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.636363636363637) internal successors, (256), 22 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 09:21:19,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 09:21:19,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 09:21:19,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-03-04 09:21:19,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.