/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/concurrent/pthreads/regression/mainThreadTerminates.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 09:14:09,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 09:14:09,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 09:14:09,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 09:14:09,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 09:14:09,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 09:14:09,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 09:14:09,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 09:14:09,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 09:14:09,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 09:14:09,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 09:14:09,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 09:14:09,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 09:14:09,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 09:14:09,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 09:14:09,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 09:14:09,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 09:14:09,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 09:14:09,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 09:14:09,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 09:14:09,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 09:14:09,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 09:14:09,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 09:14:09,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 09:14:09,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 09:14:09,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-02 09:14:09,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-02 09:14:09,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-02 09:14:09,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-02 09:14:09,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-02 09:14:09,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-02 09:14:09,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-02 09:14:09,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-02 09:14:09,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 09:14:09,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 09:14:09,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 09:14:09,341 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 [2022-03-02 09:14:09,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 09:14:09,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 09:14:09,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 09:14:09,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 09:14:09,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 09:14:09,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 09:14:09,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 09:14:09,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 09:14:09,377 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 09:14:09,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 09:14:09,378 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 09:14:09,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 09:14:09,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 09:14:09,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 09:14:09,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 09:14:09,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 09:14:09,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 09:14:09,378 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 09:14:09,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 09:14:09,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 09:14:09,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 09:14:09,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 09:14:09,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 09:14:09,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 09:14:09,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 09:14:09,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 09:14:09,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 09:14:09,380 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 09:14:09,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 09:14:09,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 09:14:09,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 09:14:09,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 09:14:09,381 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 09:14:09,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 09:14:09,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 09:14:09,381 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 09:14:09,382 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 09:14:09,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 09:14:09,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 09:14:09,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 09:14:09,596 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-02 09:14:09,596 INFO L275 PluginConnector]: CDTParser initialized [2022-03-02 09:14:09,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/mainThreadTerminates.c [2022-03-02 09:14:09,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2abd9b75/9596ed86b74a4ec58c21dc5dd7821505/FLAG02dfa0d32 [2022-03-02 09:14:09,996 INFO L306 CDTParser]: Found 1 translation units. [2022-03-02 09:14:09,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/mainThreadTerminates.c [2022-03-02 09:14:09,996 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-02 09:14:09,997 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-02 09:14:10,022 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2abd9b75/9596ed86b74a4ec58c21dc5dd7821505/FLAG02dfa0d32 [2022-03-02 09:14:10,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2abd9b75/9596ed86b74a4ec58c21dc5dd7821505 [2022-03-02 09:14:10,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 09:14:10,037 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-02 09:14:10,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-02 09:14:10,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-02 09:14:10,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-02 09:14:10,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5557b501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10, skipping insertion in model container [2022-03-02 09:14:10,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-02 09:14:10,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-02 09:14:10,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-02 09:14:10,244 INFO L203 MainTranslator]: Completed pre-run [2022-03-02 09:14:10,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-02 09:14:10,260 INFO L208 MainTranslator]: Completed translation [2022-03-02 09:14:10,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10 WrapperNode [2022-03-02 09:14:10,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-02 09:14:10,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 09:14:10,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 09:14:10,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 09:14:10,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,287 INFO L137 Inliner]: procedures = 8, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2022-03-02 09:14:10,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 09:14:10,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 09:14:10,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 09:14:10,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 09:14:10,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 09:14:10,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 09:14:10,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 09:14:10,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 09:14:10,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10" (1/1) ... [2022-03-02 09:14:10,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 09:14:10,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:14:10,328 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) [2022-03-02 09:14:10,336 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 [2022-03-02 09:14:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-02 09:14:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure worker_thread [2022-03-02 09:14:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_thread [2022-03-02 09:14:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 09:14:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 09:14:10,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-02 09:14:10,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-02 09:14:10,361 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 09:14:10,411 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 09:14:10,412 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 09:14:10,486 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 09:14:10,492 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 09:14:10,492 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-02 09:14:10,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 09:14:10 BoogieIcfgContainer [2022-03-02 09:14:10,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 09:14:10,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 09:14:10,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 09:14:10,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 09:14:10,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.03 09:14:10" (1/3) ... [2022-03-02 09:14:10,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7572fad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 09:14:10, skipping insertion in model container [2022-03-02 09:14:10,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 09:14:10" (2/3) ... [2022-03-02 09:14:10,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7572fad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 09:14:10, skipping insertion in model container [2022-03-02 09:14:10,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 09:14:10" (3/3) ... [2022-03-02 09:14:10,501 INFO L111 eAbstractionObserver]: Analyzing ICFG mainThreadTerminates.c [2022-03-02 09:14:10,505 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 09:14:10,505 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 09:14:10,505 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 09:14:10,505 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 09:14:10,525 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,525 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,525 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,525 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,526 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,526 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,526 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,526 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,526 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,527 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,527 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,527 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,528 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,528 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,529 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,529 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,529 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,529 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,530 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,530 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,530 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,530 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,531 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,531 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,534 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,534 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,534 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,535 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,535 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,535 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 09:14:10,537 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-02 09:14:10,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 09:14:10,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:14:10,579 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) [2022-03-02 09:14:10,605 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 [2022-03-02 09:14:10,631 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 09:14:10,638 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 [2022-03-02 09:14:10,639 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-02 09:14:10,691 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 33 transitions and produced 34 states. [2022-03-02 09:14:10,693 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-02 09:14:10,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:14:10,698 INFO L85 PathProgramCache]: Analyzing trace with hash 254801108, now seen corresponding path program 1 times [2022-03-02 09:14:10,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:14:10,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357524753] [2022-03-02 09:14:10,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:14:10,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:14:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:14:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:14:10,839 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:14:10,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357524753] [2022-03-02 09:14:10,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357524753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 09:14:10,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 09:14:10,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-02 09:14:10,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006671592] [2022-03-02 09:14:10,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 09:14:10,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-02 09:14:10,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:14:10,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-02 09:14:10,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-02 09:14:10,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:10,878 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:14:10,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2022-03-02 09:14:10,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:10,900 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 33 transitions and produced 34 states. [2022-03-02 09:14:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:10,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-02 09:14:10,903 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-02 09:14:10,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:14:10,906 INFO L85 PathProgramCache]: Analyzing trace with hash 254801139, now seen corresponding path program 1 times [2022-03-02 09:14:10,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:14:10,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079499939] [2022-03-02 09:14:10,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:14:10,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:14:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:14:10,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:14:10,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:14:10,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079499939] [2022-03-02 09:14:10,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079499939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 09:14:10,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 09:14:10,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 09:14:10,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487083153] [2022-03-02 09:14:10,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 09:14:10,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 09:14:10,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:14:10,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 09:14:10,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 09:14:10,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:10,994 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:14:10,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2022-03-02 09:14:10,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:11,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:11,038 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 39 transitions and produced 40 states. [2022-03-02 09:14:11,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:11,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:14:11,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-02 09:14:11,040 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-02 09:14:11,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:14:11,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1567478423, now seen corresponding path program 1 times [2022-03-02 09:14:11,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:14:11,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538645726] [2022-03-02 09:14:11,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:14:11,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:14:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:14:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:14:11,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:14:11,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538645726] [2022-03-02 09:14:11,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538645726] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:14:11,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166314213] [2022-03-02 09:14:11,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:14:11,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:14:11,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:14:11,163 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) [2022-03-02 09:14:11,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 09:14:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:14:11,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-02 09:14:11,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:14:11,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:14:11,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:14:11,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:14:11,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166314213] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:14:11,457 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:14:11,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-02 09:14:11,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388287995] [2022-03-02 09:14:11,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:14:11,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-02 09:14:11,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:14:11,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-02 09:14:11,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-02 09:14:11,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:11,460 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:14:11,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2022-03-02 09:14:11,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:11,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:14:11,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:11,568 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 50 states. [2022-03-02 09:14:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:14:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-02 09:14:11,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 09:14:11,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-03-02 09:14:11,794 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-02 09:14:11,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:14:11,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1231304671, now seen corresponding path program 2 times [2022-03-02 09:14:11,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:14:11,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606906723] [2022-03-02 09:14:11,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:14:11,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:14:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:14:11,910 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:14:11,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:14:11,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606906723] [2022-03-02 09:14:11,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606906723] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:14:11,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74014661] [2022-03-02 09:14:11,913 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 09:14:11,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:14:11,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:14:11,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 09:14:11,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 09:14:11,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 09:14:11,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 09:14:11,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-02 09:14:11,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:14:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:14:12,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:14:12,134 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:14:12,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74014661] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:14:12,135 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:14:12,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-03-02 09:14:12,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581469189] [2022-03-02 09:14:12,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:14:12,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-02 09:14:12,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:14:12,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-02 09:14:12,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-03-02 09:14:12,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:12,138 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:14:12,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 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) [2022-03-02 09:14:12,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:12,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:14:12,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-02 09:14:12,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:12,270 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 57 transitions and produced 55 states. [2022-03-02 09:14:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:14:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:14:12,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-02 09:14:12,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-02 09:14:12,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 09:14:12,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:14:12,499 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-02 09:14:12,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:14:12,500 INFO L85 PathProgramCache]: Analyzing trace with hash 212778883, now seen corresponding path program 3 times [2022-03-02 09:14:12,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:14:12,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107603641] [2022-03-02 09:14:12,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:14:12,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:14:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-02 09:14:12,521 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-02 09:14:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-02 09:14:12,558 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-02 09:14:12,558 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-02 09:14:12,559 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location worker_threadErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-02 09:14:12,561 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location worker_threadErr0ASSERT_VIOLATIONASSERT (1 of 3 remaining) [2022-03-02 09:14:12,562 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2022-03-02 09:14:12,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-02 09:14:12,571 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-03-02 09:14:12,575 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 09:14:12,575 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 09:14:12,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 09:14:12 BasicIcfg [2022-03-02 09:14:12,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 09:14:12,604 INFO L158 Benchmark]: Toolchain (without parser) took 2567.34ms. Allocated memory was 184.5MB in the beginning and 235.9MB in the end (delta: 51.4MB). Free memory was 132.1MB in the beginning and 191.6MB in the end (delta: -59.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 09:14:12,604 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 150.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 09:14:12,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.87ms. Allocated memory is still 184.5MB. Free memory was 131.9MB in the beginning and 159.2MB in the end (delta: -27.3MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-03-02 09:14:12,605 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.77ms. Allocated memory is still 184.5MB. Free memory was 159.2MB in the beginning and 157.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-02 09:14:12,605 INFO L158 Benchmark]: Boogie Preprocessor took 15.56ms. Allocated memory is still 184.5MB. Free memory was 157.6MB in the beginning and 157.1MB in the end (delta: 521.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 09:14:12,606 INFO L158 Benchmark]: RCFGBuilder took 189.68ms. Allocated memory is still 184.5MB. Free memory was 156.6MB in the beginning and 147.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-02 09:14:12,606 INFO L158 Benchmark]: TraceAbstraction took 2108.13ms. Allocated memory was 184.5MB in the beginning and 235.9MB in the end (delta: 51.4MB). Free memory was 147.1MB in the beginning and 191.6MB in the end (delta: -44.5MB). Peak memory consumption was 6.4MB. Max. memory is 8.0GB. [2022-03-02 09:14:12,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 150.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 222.87ms. Allocated memory is still 184.5MB. Free memory was 131.9MB in the beginning and 159.2MB in the end (delta: -27.3MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.77ms. Allocated memory is still 184.5MB. Free memory was 159.2MB in the beginning and 157.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.56ms. Allocated memory is still 184.5MB. Free memory was 157.6MB in the beginning and 157.1MB in the end (delta: 521.5kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 189.68ms. Allocated memory is still 184.5MB. Free memory was 156.6MB in the beginning and 147.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 2108.13ms. Allocated memory was 184.5MB in the beginning and 235.9MB in the end (delta: 51.4MB). Free memory was 147.1MB in the beginning and 191.6MB in the end (delta: -44.5MB). Peak memory consumption was 6.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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: 22]: assertion can be violated assertion can be violated We found a FailurePath: [L26] 0 pthread_t thread; VAL [thread={2:0}] [L27] FCALL, FORK 0 pthread_create(&thread, NULL, worker_thread, NULL) VAL [arg={0:0}, pthread_create(&thread, NULL, worker_thread, NULL)=-1, thread={2:0}] [L18] 1 int x = 0; VAL [arg={0:0}, arg={0:0}, x=0] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=0] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=1] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=1] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=2] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=2] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=3] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=3] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=4] [L19] COND FALSE 1 !(x < 4) VAL [arg={0:0}, arg={0:0}, x=4] [L22] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=4] - UnprovableResult [Line: 27]: 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 3 procedures, 42 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 216 NumberOfCodeBlocks, 216 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 232 ConstructedInterpolants, 0 QuantifiedInterpolants, 342 SizeOfPredicates, 8 NumberOfNonLiveVariables, 144 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 0/48 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! [2022-03-02 09:14:12,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-02 09:14:12,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...