/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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.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 [2022-03-04 00:18:27,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 00:18:27,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 00:18:27,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 00:18:27,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 00:18:27,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 00:18:27,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 00:18:27,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 00:18:27,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 00:18:27,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 00:18:27,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 00:18:27,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 00:18:27,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 00:18:27,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 00:18:27,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 00:18:27,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 00:18:27,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 00:18:27,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 00:18:27,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 00:18:27,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 00:18:27,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 00:18:27,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 00:18:27,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 00:18:27,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 00:18:27,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 00:18:27,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 00:18:27,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 00:18:27,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 00:18:27,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 00:18:27,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 00:18:27,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 00:18:27,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 00:18:27,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 00:18:27,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 00:18:27,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 00:18:27,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 00:18:27,325 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-04 00:18:27,354 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 00:18:27,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 00:18:27,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 00:18:27,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 00:18:27,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 00:18:27,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 00:18:27,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 00:18:27,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 00:18:27,358 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 00:18:27,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 00:18:27,359 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 00:18:27,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 00:18:27,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 00:18:27,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 00:18:27,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 00:18:27,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 00:18:27,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 00:18:27,360 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 00:18:27,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 00:18:27,360 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 00:18:27,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 00:18:27,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 00:18:27,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 00:18:27,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 00:18:27,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 00:18:27,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:18:27,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 00:18:27,362 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 00:18:27,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 00:18:27,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 00:18:27,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 00:18:27,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 00:18:27,363 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 00:18:27,363 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 00:18:27,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 00:18:27,363 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 00:18:27,363 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 00:18:27,364 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 00:18:27,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 00:18:27,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 00:18:27,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 00:18:27,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 00:18:27,591 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-04 00:18:27,594 INFO L275 PluginConnector]: CDTParser initialized [2022-03-04 00:18:27,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/mainThreadTerminates.c [2022-03-04 00:18:27,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46a881c19/862fab4a5d6b419b8cc887213bd792f8/FLAG09330ddac [2022-03-04 00:18:28,245 INFO L306 CDTParser]: Found 1 translation units. [2022-03-04 00:18:28,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/mainThreadTerminates.c [2022-03-04 00:18:28,245 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-04 00:18:28,246 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-04 00:18:28,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46a881c19/862fab4a5d6b419b8cc887213bd792f8/FLAG09330ddac [2022-03-04 00:18:28,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46a881c19/862fab4a5d6b419b8cc887213bd792f8 [2022-03-04 00:18:28,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 00:18:28,683 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-04 00:18:28,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-04 00:18:28,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-04 00:18:28,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-04 00:18:28,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9ab27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28, skipping insertion in model container [2022-03-04 00:18:28,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-04 00:18:28,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-04 00:18:28,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 00:18:28,902 INFO L203 MainTranslator]: Completed pre-run [2022-03-04 00:18:28,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 00:18:28,924 INFO L208 MainTranslator]: Completed translation [2022-03-04 00:18:28,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28 WrapperNode [2022-03-04 00:18:28,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-04 00:18:28,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 00:18:28,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 00:18:28,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 00:18:28,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,958 INFO L137 Inliner]: procedures = 8, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2022-03-04 00:18:28,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 00:18:28,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 00:18:28,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 00:18:28,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 00:18:28,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 00:18:28,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 00:18:28,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 00:18:28,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 00:18:28,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28" (1/1) ... [2022-03-04 00:18:28,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:18:29,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:18:29,028 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 00:18:29,036 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 00:18:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-04 00:18:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure worker_thread [2022-03-04 00:18:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_thread [2022-03-04 00:18:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 00:18:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 00:18:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-04 00:18:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-04 00:18:29,074 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 00:18:29,150 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 00:18:29,151 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 00:18:29,282 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 00:18:29,289 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 00:18:29,289 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-04 00:18:29,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:18:29 BoogieIcfgContainer [2022-03-04 00:18:29,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 00:18:29,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 00:18:29,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 00:18:29,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 00:18:29,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 12:18:28" (1/3) ... [2022-03-04 00:18:29,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2937911e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:18:29, skipping insertion in model container [2022-03-04 00:18:29,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:28" (2/3) ... [2022-03-04 00:18:29,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2937911e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:18:29, skipping insertion in model container [2022-03-04 00:18:29,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:18:29" (3/3) ... [2022-03-04 00:18:29,313 INFO L111 eAbstractionObserver]: Analyzing ICFG mainThreadTerminates.c [2022-03-04 00:18:29,317 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 00:18:29,317 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 00:18:29,317 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 00:18:29,318 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 00:18:29,370 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,371 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,371 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,371 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,371 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,372 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,372 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,372 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,372 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,372 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,373 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,373 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,374 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,374 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,375 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,375 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,375 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,375 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,375 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,375 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,376 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,376 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,376 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,376 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,380 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,380 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,380 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,380 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,380 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,380 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:29,382 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-04 00:18:29,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 00:18:29,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:18:29,474 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 00:18:29,510 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 00:18:29,538 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 00:18:29,563 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=false, mMcrOverapproximateWrwc=false [2022-03-04 00:18:29,570 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 00:18:29,666 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 33 transitions and produced 34 states. [2022-03-04 00:18:29,677 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-04 00:18:29,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:18:29,692 INFO L85 PathProgramCache]: Analyzing trace with hash 254801108, now seen corresponding path program 1 times [2022-03-04 00:18:29,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:18:29,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076101801] [2022-03-04 00:18:29,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:18:29,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:18:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:18:29,986 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 00:18:29,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:18:29,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076101801] [2022-03-04 00:18:29,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076101801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:18:29,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:18:29,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-04 00:18:29,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810109346] [2022-03-04 00:18:30,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:18:30,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-04 00:18:30,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:18:30,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-04 00:18:30,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-04 00:18:30,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:30,041 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:18:30,043 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) [2022-03-04 00:18:30,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:30,060 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 33 transitions and produced 34 states. [2022-03-04 00:18:30,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:30,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 00:18:30,061 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-04 00:18:30,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:18:30,066 INFO L85 PathProgramCache]: Analyzing trace with hash 254801139, now seen corresponding path program 1 times [2022-03-04 00:18:30,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:18:30,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651558320] [2022-03-04 00:18:30,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:18:30,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:18:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:18:30,149 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 00:18:30,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:18:30,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651558320] [2022-03-04 00:18:30,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651558320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:18:30,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:18:30,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 00:18:30,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250122015] [2022-03-04 00:18:30,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:18:30,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 00:18:30,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:18:30,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 00:18:30,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 00:18:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:30,155 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:18:30,155 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) [2022-03-04 00:18:30,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:30,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:30,190 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 39 transitions and produced 40 states. [2022-03-04 00:18:30,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:30,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:18:30,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-04 00:18:30,198 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-04 00:18:30,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:18:30,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1567478423, now seen corresponding path program 1 times [2022-03-04 00:18:30,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:18:30,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377573183] [2022-03-04 00:18:30,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:18:30,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:18:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:18:30,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:18:30,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:18:30,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377573183] [2022-03-04 00:18:30,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377573183] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:18:30,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889418338] [2022-03-04 00:18:30,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:18:30,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:18:30,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:18:30,293 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 00:18:30,294 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 00:18:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:18:30,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-04 00:18:30,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:18:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:18:30,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:18:30,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:18:30,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889418338] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:18:30,501 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:18:30,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-04 00:18:30,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822474200] [2022-03-04 00:18:30,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:18:30,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-04 00:18:30,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:18:30,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-04 00:18:30,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-04 00:18:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:30,503 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:18:30,503 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) [2022-03-04 00:18:30,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:30,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:18:30,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:30,670 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-03-04 00:18:30,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:30,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:18:30,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 00:18:30,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 00:18:30,885 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 [2022-03-04 00:18:30,886 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-04 00:18:30,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:18:30,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1231304671, now seen corresponding path program 2 times [2022-03-04 00:18:30,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:18:30,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491224414] [2022-03-04 00:18:30,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:18:30,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:18:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:18:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:18:30,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:18:30,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491224414] [2022-03-04 00:18:30,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491224414] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:18:30,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289877371] [2022-03-04 00:18:30,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 00:18:30,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:18:30,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:18:30,955 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) [2022-03-04 00:18:30,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 00:18:30,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 00:18:30,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:18:30,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-04 00:18:31,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:18:31,073 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:18:31,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:18:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:18:31,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289877371] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:18:31,130 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:18:31,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-03-04 00:18:31,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989566224] [2022-03-04 00:18:31,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:18:31,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-04 00:18:31,131 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:18:31,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-04 00:18:31,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-03-04 00:18:31,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:31,132 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:18:31,132 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) [2022-03-04 00:18:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:18:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 00:18:31,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:31,215 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 57 transitions and produced 58 states. [2022-03-04 00:18:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:18:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 00:18:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-04 00:18:31,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 00:18:31,436 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 [2022-03-04 00:18:31,437 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-04 00:18:31,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:18:31,438 INFO L85 PathProgramCache]: Analyzing trace with hash 212778883, now seen corresponding path program 3 times [2022-03-04 00:18:31,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:18:31,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66408528] [2022-03-04 00:18:31,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:18:31,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:18:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 00:18:31,455 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-04 00:18:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 00:18:31,480 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-04 00:18:31,480 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-04 00:18:31,481 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location worker_threadErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 00:18:31,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location worker_threadErr0ASSERT_VIOLATIONASSERT (1 of 3 remaining) [2022-03-04 00:18:31,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 00:18:31,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-04 00:18:31,488 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-03-04 00:18:31,492 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 00:18:31,492 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 00:18:31,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:18:31 BasicIcfg [2022-03-04 00:18:31,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 00:18:31,519 INFO L158 Benchmark]: Toolchain (without parser) took 2836.24ms. Allocated memory was 207.6MB in the beginning and 343.9MB in the end (delta: 136.3MB). Free memory was 148.4MB in the beginning and 262.7MB in the end (delta: -114.3MB). Peak memory consumption was 21.7MB. Max. memory is 8.0GB. [2022-03-04 00:18:31,519 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 207.6MB. Free memory is still 166.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 00:18:31,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.29ms. Allocated memory was 207.6MB in the beginning and 343.9MB in the end (delta: 136.3MB). Free memory was 148.3MB in the beginning and 314.9MB in the end (delta: -166.6MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. [2022-03-04 00:18:31,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.01ms. Allocated memory is still 343.9MB. Free memory was 314.9MB in the beginning and 313.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 00:18:31,520 INFO L158 Benchmark]: Boogie Preprocessor took 26.40ms. Allocated memory is still 343.9MB. Free memory was 313.4MB in the beginning and 312.5MB in the end (delta: 840.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 00:18:31,521 INFO L158 Benchmark]: RCFGBuilder took 303.92ms. Allocated memory is still 343.9MB. Free memory was 312.5MB in the beginning and 303.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-04 00:18:31,521 INFO L158 Benchmark]: TraceAbstraction took 2226.20ms. Allocated memory is still 343.9MB. Free memory was 302.6MB in the beginning and 262.7MB in the end (delta: 39.9MB). Peak memory consumption was 39.1MB. Max. memory is 8.0GB. [2022-03-04 00:18:31,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 207.6MB. Free memory is still 166.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 239.29ms. Allocated memory was 207.6MB in the beginning and 343.9MB in the end (delta: 136.3MB). Free memory was 148.3MB in the beginning and 314.9MB in the end (delta: -166.6MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.01ms. Allocated memory is still 343.9MB. Free memory was 314.9MB in the beginning and 313.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.40ms. Allocated memory is still 343.9MB. Free memory was 313.4MB in the beginning and 312.5MB in the end (delta: 840.8kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 303.92ms. Allocated memory is still 343.9MB. Free memory was 312.5MB in the beginning and 303.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2226.20ms. Allocated memory is still 343.9MB. Free memory was 302.6MB in the beginning and 262.7MB in the end (delta: 39.9MB). Peak memory consumption was 39.1MB. 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: 0.4s, 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, 0.5s 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! [2022-03-04 00:18:31,550 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 [2022-03-04 00:18:31,771 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...