/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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 03:14:11,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 03:14:11,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 03:14:11,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-25 03:14:11,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-25 03:14:11,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-25 03:14:11,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-25 03:14:11,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-25 03:14:11,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-25 03:14:11,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-25 03:14:11,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-25 03:14:11,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-25 03:14:11,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-25 03:14:11,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-25 03:14:11,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-25 03:14:11,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-25 03:14:11,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-25 03:14:11,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-25 03:14:11,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-25 03:14:11,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-25 03:14:11,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-25 03:14:11,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-25 03:14:11,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-25 03:14:11,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-25 03:14:11,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-25 03:14:11,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-25 03:14:11,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-25 03:14:11,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-25 03:14:11,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-25 03:14:11,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-25 03:14:11,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-25 03:14:11,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-25 03:14:11,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-25 03:14:11,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-25 03:14:11,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-25 03:14:11,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-25 03:14:11,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-25 03:14:11,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-25 03:14:11,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-25 03:14:11,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-25 03:14:11,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-25 03:14:11,323 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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf [2021-10-25 03:14:11,347 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 03:14:11,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 03:14:11,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 03:14:11,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 03:14:11,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 03:14:11,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 03:14:11,354 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 03:14:11,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 03:14:11,355 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 03:14:11,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 03:14:11,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 03:14:11,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 03:14:11,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 03:14:11,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 03:14:11,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 03:14:11,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 03:14:11,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 03:14:11,358 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-25 03:14:11,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 03:14:11,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 03:14:11,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 03:14:11,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 03:14:11,358 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 03:14:11,359 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 03:14:11,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 03:14:11,359 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 [2021-10-25 03:14:11,359 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 03:14:11,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 03:14:11,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 03:14:11,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 03:14:11,554 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-25 03:14:11,555 INFO L275 PluginConnector]: CDTParser initialized [2021-10-25 03:14:11,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar.i [2021-10-25 03:14:11,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15dd62e20/bcf78e9e1c3c4478b7e64b89075da36f/FLAGd78de399b [2021-10-25 03:14:11,935 INFO L306 CDTParser]: Found 1 translation units. [2021-10-25 03:14:11,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i [2021-10-25 03:14:11,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15dd62e20/bcf78e9e1c3c4478b7e64b89075da36f/FLAGd78de399b [2021-10-25 03:14:12,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15dd62e20/bcf78e9e1c3c4478b7e64b89075da36f [2021-10-25 03:14:12,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 03:14:12,323 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-25 03:14:12,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-25 03:14:12,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-25 03:14:12,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-25 03:14:12,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400cbb0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12, skipping insertion in model container [2021-10-25 03:14:12,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-25 03:14:12,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-25 03:14:12,482 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-25 03:14:12,602 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i[30458,30471] [2021-10-25 03:14:12,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-25 03:14:12,615 INFO L203 MainTranslator]: Completed pre-run [2021-10-25 03:14:12,622 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-25 03:14:12,636 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i[30458,30471] [2021-10-25 03:14:12,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-25 03:14:12,658 INFO L208 MainTranslator]: Completed translation [2021-10-25 03:14:12,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12 WrapperNode [2021-10-25 03:14:12,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-25 03:14:12,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 03:14:12,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 03:14:12,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 03:14:12,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 03:14:12,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 03:14:12,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 03:14:12,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 03:14:12,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 03:14:12,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 03:14:12,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 03:14:12,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 03:14:12,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12" (1/1) ... [2021-10-25 03:14:12,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 03:14:12,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:14:12,748 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) [2021-10-25 03:14:12,751 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 [2021-10-25 03:14:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-25 03:14:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-25 03:14:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-25 03:14:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-25 03:14:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-25 03:14:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-25 03:14:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-10-25 03:14:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-10-25 03:14:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 03:14:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 03:14:12,779 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 03:14:13,141 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 03:14:13,141 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-25 03:14:13,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 03:14:13 BoogieIcfgContainer [2021-10-25 03:14:13,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 03:14:13,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 03:14:13,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 03:14:13,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 03:14:13,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 03:14:12" (1/3) ... [2021-10-25 03:14:13,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c76685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 03:14:13, skipping insertion in model container [2021-10-25 03:14:13,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:14:12" (2/3) ... [2021-10-25 03:14:13,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c76685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 03:14:13, skipping insertion in model container [2021-10-25 03:14:13,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 03:14:13" (3/3) ... [2021-10-25 03:14:13,151 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar.i [2021-10-25 03:14:13,154 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 03:14:13,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 03:14:13,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 03:14:13,154 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 03:14:13,183 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,183 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,183 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,183 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,183 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,184 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,184 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,184 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,184 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,184 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,184 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,184 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,185 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,185 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,186 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,186 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,186 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,186 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,187 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,187 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,190 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,190 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,190 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,191 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,191 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,191 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:14:13,204 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-25 03:14:13,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 03:14:13,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:14:13,235 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) [2021-10-25 03:14:13,236 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 [2021-10-25 03:14:13,263 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of1ForFork0 ======== [2021-10-25 03:14:13,268 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-25 03:14:13,268 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-25 03:14:13,373 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-25 03:14:13,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:14:13,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1576900738, now seen corresponding path program 1 times [2021-10-25 03:14:13,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:14:13,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576547865] [2021-10-25 03:14:13,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:14:13,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:14:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:14:13,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:14:13,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:14:13,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576547865] [2021-10-25 03:14:13,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576547865] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:14:13,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 03:14:13,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-25 03:14:13,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851159545] [2021-10-25 03:14:13,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-25 03:14:13,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:14:13,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-25 03:14:13,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-25 03:14:13,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:14:13,639 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:14:13,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 03:14:13,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:14:13,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 03:14:13,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-25 03:14:13,682 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-25 03:14:13,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:14:13,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1975238286, now seen corresponding path program 1 times [2021-10-25 03:14:13,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:14:13,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465330071] [2021-10-25 03:14:13,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:14:13,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:14:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:14:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:14:13,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:14:13,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465330071] [2021-10-25 03:14:13,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465330071] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:14:13,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014666194] [2021-10-25 03:14:13,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:14:13,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:14:13,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:14:13,750 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) [2021-10-25 03:14:13,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-25 03:14:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:14:13,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-25 03:14:13,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 03:14:14,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:14:14,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014666194] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:14:14,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 03:14:14,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-25 03:14:14,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647120624] [2021-10-25 03:14:14,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 03:14:14,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:14:14,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 03:14:14,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-25 03:14:14,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:14:14,211 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:14:14,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 03:14:14,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 03:14:14,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:14:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 03:14:14,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:14:14,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-25 03:14:14,502 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,SelfDestructingSolverStorable1 [2021-10-25 03:14:14,503 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-25 03:14:14,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:14:14,503 INFO L82 PathProgramCache]: Analyzing trace with hash 225537949, now seen corresponding path program 2 times [2021-10-25 03:14:14,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:14:14,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472572808] [2021-10-25 03:14:14,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:14:14,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:14:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:14:14,591 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:14:14,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:14:14,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472572808] [2021-10-25 03:14:14,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472572808] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:14:14,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256523409] [2021-10-25 03:14:14,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 03:14:14,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:14:14,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:14:14,593 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) [2021-10-25 03:14:14,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-25 03:14:14,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 03:14:14,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 03:14:14,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-25 03:14:14,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 03:14:14,863 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:14:14,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256523409] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:14:14,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 03:14:14,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-25 03:14:14,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897519003] [2021-10-25 03:14:14,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-25 03:14:14,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:14:14,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-25 03:14:14,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-25 03:14:14,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:14:14,865 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:14:14,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 03:14:14,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 03:14:14,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:14:14,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:14:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 03:14:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:14:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 03:14:14,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-25 03:14:15,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:14:15,153 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-25 03:14:15,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:14:15,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1186030674, now seen corresponding path program 3 times [2021-10-25 03:14:15,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:14:15,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259542372] [2021-10-25 03:14:15,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:14:15,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:14:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:14:15,247 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:14:15,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:14:15,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259542372] [2021-10-25 03:14:15,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259542372] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:14:15,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024140778] [2021-10-25 03:14:15,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 03:14:15,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:14:15,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:14:15,249 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 03:14:15,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-25 03:14:15,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-25 03:14:15,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 03:14:15,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-25 03:14:15,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 03:14:15,600 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-25 03:14:15,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024140778] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:14:15,601 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-25 03:14:15,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-10-25 03:14:15,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671059538] [2021-10-25 03:14:15,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 03:14:15,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:14:15,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 03:14:15,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-10-25 03:14:15,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:14:15,602 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:14:15,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 03:14:15,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 03:14:15,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:14:15,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 03:14:15,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:14:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 03:14:15,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:14:15,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 03:14:15,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 03:14:15,704 INFO L764 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-25 03:14:15,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-25 03:14:15,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:14:15,929 INFO L308 ceAbstractionStarter]: Result for error location threadThread1of1ForFork0 was SAFE (1/2) [2021-10-25 03:14:15,930 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 03:14:15,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:14:15,931 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-25 03:14:15,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2021-10-25 03:14:15,934 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 03:14:15,935 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, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-25 03:14:15,935 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-25 03:14:15,938 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 03:14:15,939 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-10-25 03:14:15,940 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-25 03:14:15,940 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-25 03:14:15,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 03:14:15 BasicIcfg [2021-10-25 03:14:15,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-25 03:14:15,945 INFO L168 Benchmark]: Toolchain (without parser) took 3618.76 ms. Allocated memory was 170.9 MB in the beginning and 208.7 MB in the end (delta: 37.7 MB). Free memory was 120.5 MB in the beginning and 171.8 MB in the end (delta: -51.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 03:14:15,945 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 170.9 MB. Free memory is still 138.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 03:14:15,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.50 ms. Allocated memory is still 170.9 MB. Free memory was 120.3 MB in the beginning and 140.0 MB in the end (delta: -19.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. [2021-10-25 03:14:15,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.09 ms. Allocated memory is still 170.9 MB. Free memory was 140.0 MB in the beginning and 137.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-25 03:14:15,946 INFO L168 Benchmark]: Boogie Preprocessor took 14.37 ms. Allocated memory is still 170.9 MB. Free memory was 137.9 MB in the beginning and 136.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-25 03:14:15,946 INFO L168 Benchmark]: RCFGBuilder took 432.28 ms. Allocated memory is still 170.9 MB. Free memory was 136.4 MB in the beginning and 114.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-10-25 03:14:15,946 INFO L168 Benchmark]: TraceAbstraction took 2794.86 ms. Allocated memory was 170.9 MB in the beginning and 208.7 MB in the end (delta: 37.7 MB). Free memory was 113.8 MB in the beginning and 171.8 MB in the end (delta: -58.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 03:14:15,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 170.9 MB. Free memory is still 138.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 324.50 ms. Allocated memory is still 170.9 MB. Free memory was 120.3 MB in the beginning and 140.0 MB in the end (delta: -19.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 39.09 ms. Allocated memory is still 170.9 MB. Free memory was 140.0 MB in the beginning and 137.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.37 ms. Allocated memory is still 170.9 MB. Free memory was 137.9 MB in the beginning and 136.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 432.28 ms. Allocated memory is still 170.9 MB. Free memory was 136.4 MB in the beginning and 114.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2794.86 ms. Allocated memory was 170.9 MB in the beginning and 208.7 MB in the end (delta: 37.7 MB). Free memory was 113.8 MB in the beginning and 171.8 MB in the end (delta: -58.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1071, positive: 874, positive conditional: 556, positive unconditional: 318, negative: 197, negative conditional: 193, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 882, positive: 874, positive conditional: 0, positive unconditional: 874, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 293, positive: 289, positive conditional: 0, positive unconditional: 289, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 293, positive: 287, positive conditional: 0, positive unconditional: 287, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 882, positive: 585, positive conditional: 0, positive unconditional: 585, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 293, unknown conditional: 0, unknown unconditional: 293] , Statistics on independence cache: Total cache size (in pairs): 293, Positive cache size: 289, Positive conditional cache size: 0, Positive unconditional cache size: 289, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Independence queries for same thread: 189 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 64, Number of persistent set computation: 77, Number of trivial persistent sets: 70, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1071, positive: 874, positive conditional: 556, positive unconditional: 318, negative: 197, negative conditional: 193, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 882, positive: 874, positive conditional: 0, positive unconditional: 874, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 293, positive: 289, positive conditional: 0, positive unconditional: 289, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 293, positive: 287, positive conditional: 0, positive unconditional: 287, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 882, positive: 585, positive conditional: 0, positive unconditional: 585, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 293, unknown conditional: 0, unknown unconditional: 293] , Statistics on independence cache: Total cache size (in pairs): 293, Positive cache size: 289, Positive conditional cache size: 0, Positive unconditional cache size: 289, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Independence queries for same thread: 189 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 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, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 0, Number of persistent set computation: 37, Number of trivial persistent sets: 37, Underlying independence relation: 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: 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, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 706]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: threadThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2697.2ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.1ms, PartialOrderReductionTime: 375.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 53.6ms SsaConstructionTime, 170.3ms SatisfiabilityAnalysisTime, 931.0ms InterpolantComputationTime, 400 NumberOfCodeBlocks, 395 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 393 ConstructedInterpolants, 0 QuantifiedInterpolants, 605 SizeOfPredicates, 10 NumberOfNonLiveVariables, 433 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 18/52 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 8.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 2.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-25 03:14:15,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Forceful destruction successful, exit code 0 [2021-10-25 03:14:16,172 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 [2021-10-25 03:14:16,375 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...