/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 07:18:30,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 07:18:30,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 07:18:30,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 07:18:30,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 07:18:30,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 07:18:30,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 07:18:30,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 07:18:30,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 07:18:30,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 07:18:30,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 07:18:30,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 07:18:30,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 07:18:30,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 07:18:30,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 07:18:30,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 07:18:30,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 07:18:30,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 07:18:30,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 07:18:30,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 07:18:30,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 07:18:30,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 07:18:30,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 07:18:30,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 07:18:30,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 07:18:30,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 07:18:30,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 07:18:30,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 07:18:30,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 07:18:30,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 07:18:30,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 07:18:30,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 07:18:30,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 07:18:30,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 07:18:30,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 07:18:30,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 07:18:30,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 07:18:30,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 07:18:30,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 07:18:30,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 07:18:30,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 07:18:30,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-02-20 07:18:30,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 07:18:30,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 07:18:30,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 07:18:30,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 07:18:30,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 07:18:30,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 07:18:30,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 07:18:30,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 07:18:30,324 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 07:18:30,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 07:18:30,324 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 07:18:30,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 07:18:30,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 07:18:30,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 07:18:30,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 07:18:30,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 07:18:30,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 07:18:30,325 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 07:18:30,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 07:18:30,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 07:18:30,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 07:18:30,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 07:18:30,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 07:18:30,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 07:18:30,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 07:18:30,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 07:18:30,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 07:18:30,326 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 07:18:30,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 07:18:30,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 07:18:30,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 07:18:30,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 07:18:30,326 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 07:18:30,327 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 07:18:30,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 07:18:30,327 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-20 07:18:30,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 07:18:30,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 07:18:30,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 07:18:30,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 07:18:30,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 07:18:30,578 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 07:18:30,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-02-20 07:18:30,629 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf88044fe/34ccf46484104bb898baf448fb6b5157/FLAGaa34edc06 [2022-02-20 07:18:31,066 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 07:18:31,066 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-02-20 07:18:31,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf88044fe/34ccf46484104bb898baf448fb6b5157/FLAGaa34edc06 [2022-02-20 07:18:31,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf88044fe/34ccf46484104bb898baf448fb6b5157 [2022-02-20 07:18:31,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 07:18:31,118 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-20 07:18:31,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 07:18:31,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 07:18:31,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 07:18:31,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ec906b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31, skipping insertion in model container [2022-02-20 07:18:31,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 07:18:31,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 07:18:31,345 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-20 07:18:31,473 WARN L230 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_spurious_wakeup.i[30416,30429] [2022-02-20 07:18:31,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 07:18:31,490 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 07:18:31,501 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-20 07:18:31,515 WARN L230 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_spurious_wakeup.i[30416,30429] [2022-02-20 07:18:31,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 07:18:31,542 INFO L208 MainTranslator]: Completed translation [2022-02-20 07:18:31,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31 WrapperNode [2022-02-20 07:18:31,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 07:18:31,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 07:18:31,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 07:18:31,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 07:18:31,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,580 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-02-20 07:18:31,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 07:18:31,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 07:18:31,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 07:18:31,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 07:18:31,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 07:18:31,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 07:18:31,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 07:18:31,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 07:18:31,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31" (1/1) ... [2022-02-20 07:18:31,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 07:18:31,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 07:18:31,664 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) [2022-02-20 07:18:31,675 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 [2022-02-20 07:18:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 07:18:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 07:18:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-20 07:18:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 07:18:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 07:18:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 07:18:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 07:18:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-02-20 07:18:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-02-20 07:18:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 07:18:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 07:18:31,707 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 07:18:31,843 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 07:18:31,844 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 07:18:32,034 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 07:18:32,053 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 07:18:32,053 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 07:18:32,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:18:32 BoogieIcfgContainer [2022-02-20 07:18:32,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 07:18:32,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 07:18:32,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 07:18:32,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 07:18:32,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 07:18:31" (1/3) ... [2022-02-20 07:18:32,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140e1cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:18:32, skipping insertion in model container [2022-02-20 07:18:32,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:18:31" (2/3) ... [2022-02-20 07:18:32,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140e1cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:18:32, skipping insertion in model container [2022-02-20 07:18:32,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:18:32" (3/3) ... [2022-02-20 07:18:32,060 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-02-20 07:18:32,063 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 07:18:32,064 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 07:18:32,064 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 07:18:32,064 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 07:18:32,085 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,085 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,085 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,085 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,085 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,086 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,086 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,086 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,086 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,086 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,087 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,087 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,087 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,087 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,088 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,088 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,088 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,088 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,089 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,089 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,091 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,091 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,091 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,091 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,091 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,091 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:18:32,094 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-20 07:18:32,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 07:18:32,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 07:18:32,132 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) [2022-02-20 07:18:32,133 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 [2022-02-20 07:18:32,153 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 07:18:32,159 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 07:18:32,159 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 07:18:32,223 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-02-20 07:18:32,229 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 07:18:32,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 07:18:32,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1647222963, now seen corresponding path program 1 times [2022-02-20 07:18:32,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 07:18:32,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861484961] [2022-02-20 07:18:32,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:18:32,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 07:18:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:18:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:32,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 07:18:32,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861484961] [2022-02-20 07:18:32,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861484961] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 07:18:32,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 07:18:32,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 07:18:32,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9998981] [2022-02-20 07:18:32,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 07:18:32,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 07:18:32,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 07:18:32,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 07:18:32,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 07:18:32,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:32,462 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 07:18:32,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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) [2022-02-20 07:18:32,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:32,482 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-02-20 07:18:32,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:32,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 07:18:32,483 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 07:18:32,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 07:18:32,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1450709458, now seen corresponding path program 1 times [2022-02-20 07:18:32,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 07:18:32,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613403152] [2022-02-20 07:18:32,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:18:32,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 07:18:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:18:32,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:32,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 07:18:32,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613403152] [2022-02-20 07:18:32,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613403152] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 07:18:32,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 07:18:32,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 07:18:32,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187053430] [2022-02-20 07:18:32,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 07:18:32,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 07:18:32,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 07:18:32,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 07:18:32,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 07:18:32,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:32,556 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 07:18:32,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2022-02-20 07:18:32,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:32,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:32,626 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 74 transitions and produced 75 states. [2022-02-20 07:18:32,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:32,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:32,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 07:18:32,628 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 07:18:32,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 07:18:32,629 INFO L85 PathProgramCache]: Analyzing trace with hash -2009823221, now seen corresponding path program 1 times [2022-02-20 07:18:32,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 07:18:32,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746772887] [2022-02-20 07:18:32,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:18:32,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 07:18:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:18:32,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:32,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 07:18:32,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746772887] [2022-02-20 07:18:32,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746772887] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 07:18:32,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128978256] [2022-02-20 07:18:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:18:32,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 07:18:32,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 07:18:32,749 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) [2022-02-20 07:18:32,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 07:18:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:18:32,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-20 07:18:32,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 07:18:33,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:33,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 07:18:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:33,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128978256] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 07:18:33,218 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 07:18:33,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-20 07:18:33,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843954468] [2022-02-20 07:18:33,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 07:18:33,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-20 07:18:33,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 07:18:33,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-20 07:18:33,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-20 07:18:33,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:33,227 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 07:18:33,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 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) [2022-02-20 07:18:33,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:33,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:33,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:33,446 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 98 transitions and produced 97 states. [2022-02-20 07:18:33,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:33,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:33,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 07:18:33,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-20 07:18:33,671 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 [2022-02-20 07:18:33,672 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 07:18:33,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 07:18:33,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1859989397, now seen corresponding path program 2 times [2022-02-20 07:18:33,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 07:18:33,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73157898] [2022-02-20 07:18:33,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:18:33,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 07:18:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:18:33,766 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:33,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 07:18:33,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73157898] [2022-02-20 07:18:33,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73157898] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 07:18:33,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205210175] [2022-02-20 07:18:33,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 07:18:33,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 07:18:33,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 07:18:33,769 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) [2022-02-20 07:18:33,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 07:18:33,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 07:18:33,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 07:18:33,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-20 07:18:33,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 07:18:34,019 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:34,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 07:18:34,198 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:34,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205210175] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 07:18:34,198 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 07:18:34,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-02-20 07:18:34,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197514389] [2022-02-20 07:18:34,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 07:18:34,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-20 07:18:34,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 07:18:34,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-20 07:18:34,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-02-20 07:18:34,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:34,201 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 07:18:34,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 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) [2022-02-20 07:18:34,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:34,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:34,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 07:18:34,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:34,470 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 146 transitions and produced 138 states. [2022-02-20 07:18:34,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 07:18:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 07:18:34,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-20 07:18:34,687 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 [2022-02-20 07:18:34,688 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 07:18:34,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 07:18:34,688 INFO L85 PathProgramCache]: Analyzing trace with hash -185566933, now seen corresponding path program 3 times [2022-02-20 07:18:34,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 07:18:34,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364035621] [2022-02-20 07:18:34,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:18:34,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 07:18:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:18:34,903 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:34,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 07:18:34,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364035621] [2022-02-20 07:18:34,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364035621] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 07:18:34,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401672796] [2022-02-20 07:18:34,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 07:18:34,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 07:18:34,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 07:18:34,906 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) [2022-02-20 07:18:34,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 07:18:34,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-20 07:18:34,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 07:18:34,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-20 07:18:34,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 07:18:35,284 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-02-20 07:18:35,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 07:18:35,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401672796] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 07:18:35,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-20 07:18:35,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2022-02-20 07:18:35,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511982212] [2022-02-20 07:18:35,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 07:18:35,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-20 07:18:35,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 07:18:35,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-20 07:18:35,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-02-20 07:18:35,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:35,287 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 07:18:35,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2022-02-20 07:18:35,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:35,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:35,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 07:18:35,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 07:18:35,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:38,676 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 659 transitions and produced 645 states. [2022-02-20 07:18:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 07:18:38,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 07:18:38,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-20 07:18:38,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-20 07:18:38,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 07:18:38,878 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 07:18:38,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 07:18:38,888 INFO L85 PathProgramCache]: Analyzing trace with hash -91214928, now seen corresponding path program 4 times [2022-02-20 07:18:38,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 07:18:38,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489330686] [2022-02-20 07:18:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:18:38,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 07:18:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:18:39,498 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:39,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 07:18:39,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489330686] [2022-02-20 07:18:39,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489330686] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 07:18:39,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169400847] [2022-02-20 07:18:39,499 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 07:18:39,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 07:18:39,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 07:18:39,500 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 07:18:39,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 07:18:39,579 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 07:18:39,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 07:18:39,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-20 07:18:39,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 07:18:39,891 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:39,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 07:18:41,364 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:41,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169400847] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 07:18:41,365 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 07:18:41,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 86 [2022-02-20 07:18:41,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904614445] [2022-02-20 07:18:41,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 07:18:41,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-20 07:18:41,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 07:18:41,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-20 07:18:41,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1892, Invalid=5418, Unknown=0, NotChecked=0, Total=7310 [2022-02-20 07:18:41,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:41,370 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 07:18:41,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 3.127906976744186) internal successors, (269), 86 states have internal predecessors, (269), 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) [2022-02-20 07:18:41,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:41,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:41,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 07:18:41,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 07:18:41,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-20 07:18:41,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:45,302 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 731 transitions and produced 650 states. [2022-02-20 07:18:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 07:18:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 07:18:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-20 07:18:45,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-20 07:18:45,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 07:18:45,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 07:18:45,519 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 07:18:45,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 07:18:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1060786512, now seen corresponding path program 5 times [2022-02-20 07:18:45,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 07:18:45,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727992355] [2022-02-20 07:18:45,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:18:45,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 07:18:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:18:48,462 INFO L134 CoverageAnalysis]: Checked inductivity of 7209 backedges. 7000 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:48,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 07:18:48,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727992355] [2022-02-20 07:18:48,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727992355] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 07:18:48,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244395008] [2022-02-20 07:18:48,463 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 07:18:48,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 07:18:48,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 07:18:48,465 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 07:18:48,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 07:18:48,608 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 55 check-sat command(s) [2022-02-20 07:18:48,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 07:18:48,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 88 conjunts are in the unsatisfiable core [2022-02-20 07:18:48,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 07:18:49,024 INFO L134 CoverageAnalysis]: Checked inductivity of 7209 backedges. 6934 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-02-20 07:18:49,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 07:18:49,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244395008] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 07:18:49,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-20 07:18:49,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [109] total 111 [2022-02-20 07:18:49,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034242624] [2022-02-20 07:18:49,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 07:18:49,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-02-20 07:18:49,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 07:18:49,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-02-20 07:18:49,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3030, Invalid=9180, Unknown=0, NotChecked=0, Total=12210 [2022-02-20 07:18:49,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:49,033 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 07:18:49,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 3.101123595505618) internal successors, (276), 89 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 07:18:49,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:49,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:49,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 07:18:49,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 07:18:49,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-20 07:18:49,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-02-20 07:18:49,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:52,174 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 736 transitions and produced 658 states. [2022-02-20 07:18:52,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:52,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:52,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 07:18:52,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 07:18:52,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-20 07:18:52,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-20 07:18:52,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-02-20 07:18:52,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-20 07:18:52,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 07:18:52,393 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 07:18:52,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 07:18:52,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1466433283, now seen corresponding path program 1 times [2022-02-20 07:18:52,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 07:18:52,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554929038] [2022-02-20 07:18:52,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:18:52,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 07:18:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:18:54,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:54,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 07:18:54,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554929038] [2022-02-20 07:18:54,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554929038] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 07:18:54,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240811582] [2022-02-20 07:18:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:18:54,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 07:18:54,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 07:18:54,947 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 07:18:54,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-20 07:18:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:18:55,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 173 conjunts are in the unsatisfiable core [2022-02-20 07:18:55,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 07:18:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:55,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 07:18:56,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:18:56,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240811582] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 07:18:56,575 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 07:18:56,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88, 88] total 88 [2022-02-20 07:18:56,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946562383] [2022-02-20 07:18:56,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 07:18:56,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-20 07:18:56,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 07:18:56,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-20 07:18:56,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7483, Unknown=0, NotChecked=0, Total=7656 [2022-02-20 07:18:56,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:56,581 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 07:18:56,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 3.0454545454545454) internal successors, (268), 88 states have internal predecessors, (268), 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) [2022-02-20 07:18:56,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:18:56,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:18:56,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 07:18:56,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 07:18:56,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-20 07:18:56,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-02-20 07:18:56,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-02-20 07:18:56,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:19:22,848 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6641 transitions and produced 6564 states. [2022-02-20 07:19:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:19:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:19:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 07:19:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 07:19:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-20 07:19:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-20 07:19:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-02-20 07:19:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-20 07:19:22,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-20 07:19:23,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 07:19:23,052 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 07:19:23,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 07:19:23,053 INFO L85 PathProgramCache]: Analyzing trace with hash 524598547, now seen corresponding path program 6 times [2022-02-20 07:19:23,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 07:19:23,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446729110] [2022-02-20 07:19:23,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:19:23,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 07:19:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 07:19:23,128 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 07:19:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 07:19:23,206 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 07:19:23,207 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 07:19:23,207 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-20 07:19:23,209 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-20 07:19:23,209 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-02-20 07:19:23,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-20 07:19:23,216 INFO L732 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1] [2022-02-20 07:19:23,220 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 07:19:23,220 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 07:19:23,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 07:19:23 BasicIcfg [2022-02-20 07:19:23,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 07:19:23,324 INFO L158 Benchmark]: Toolchain (without parser) took 52205.55ms. Allocated memory was 232.8MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 208.3MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-20 07:19:23,324 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 232.8MB. Free memory is still 196.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 07:19:23,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.56ms. Allocated memory was 232.8MB in the beginning and 304.1MB in the end (delta: 71.3MB). Free memory was 207.9MB in the beginning and 267.6MB in the end (delta: -59.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-20 07:19:23,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.99ms. Allocated memory is still 304.1MB. Free memory was 267.6MB in the beginning and 265.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-20 07:19:23,325 INFO L158 Benchmark]: Boogie Preprocessor took 38.88ms. Allocated memory is still 304.1MB. Free memory was 265.5MB in the beginning and 264.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-20 07:19:23,325 INFO L158 Benchmark]: RCFGBuilder took 433.88ms. Allocated memory is still 304.1MB. Free memory was 264.1MB in the beginning and 252.2MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-20 07:19:23,325 INFO L158 Benchmark]: TraceAbstraction took 51267.73ms. Allocated memory was 304.1MB in the beginning and 3.9GB in the end (delta: 3.6GB). Free memory was 251.9MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-20 07:19:23,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 232.8MB. Free memory is still 196.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 422.56ms. Allocated memory was 232.8MB in the beginning and 304.1MB in the end (delta: 71.3MB). Free memory was 207.9MB in the beginning and 267.6MB in the end (delta: -59.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.99ms. Allocated memory is still 304.1MB. Free memory was 267.6MB in the beginning and 265.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.88ms. Allocated memory is still 304.1MB. Free memory was 265.5MB in the beginning and 264.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 433.88ms. Allocated memory is still 304.1MB. Free memory was 264.1MB in the beginning and 252.2MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 51267.73ms. Allocated memory was 304.1MB in the beginning and 3.9GB in the end (delta: 3.6GB). Free memory was 251.9MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.9GB. 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: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L713] 0 int i = 0; VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=1] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=2] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=3] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=4] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=5] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=6] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=7] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=8] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=9] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=10] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=11] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=12] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=13] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=14] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=15] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=16] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=17] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=18] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=19] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=20] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=21] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=22] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=23] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=24] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=25] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=26] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=27] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=28] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=29] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=30] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=31] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=32] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=33] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=34] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=35] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=36] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=37] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=38] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=39] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=40] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=41] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=41] [L714] 0 x = i VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=42] [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L713] COND FALSE 0 !(i <= 42) VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L716] 0 \read(t) VAL [\read(t)=-1, arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42] - UnprovableResult [Line: 712]: 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, 86 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 51.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 37.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 431, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 2316 NumberOfCodeBlocks, 2291 NumberOfCodeBlocksAsserted, 73 NumberOfCheckSat, 2581 ConstructedInterpolants, 0 QuantifiedInterpolants, 8443 SizeOfPredicates, 224 NumberOfNonLiveVariables, 1875 ConjunctsInSsa, 322 ConjunctsInUnsatCore, 18 InterpolantComputations, 4 PerfectInterpolantSequences, 14321/31154 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! [2022-02-20 07:19:23,351 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 [2022-02-20 07:19:23,571 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...