/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.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-44898dd [2022-02-16 03:29:06,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 03:29:06,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 03:29:06,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 03:29:06,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 03:29:06,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 03:29:06,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 03:29:06,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 03:29:06,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 03:29:06,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 03:29:06,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 03:29:06,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 03:29:06,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 03:29:06,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 03:29:06,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 03:29:06,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 03:29:06,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 03:29:06,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 03:29:06,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 03:29:06,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 03:29:06,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 03:29:06,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 03:29:06,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 03:29:06,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 03:29:06,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-16 03:29:06,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-16 03:29:06,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-16 03:29:06,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-16 03:29:06,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-16 03:29:06,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-16 03:29:06,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-16 03:29:06,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-16 03:29:06,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-16 03:29:06,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-16 03:29:06,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-16 03:29:06,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-16 03:29:06,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-16 03:29:06,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-16 03:29:06,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 03:29:06,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 03:29:06,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 03:29:06,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf [2022-02-16 03:29:06,242 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 03:29:06,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 03:29:06,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 03:29:06,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 03:29:06,244 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 03:29:06,244 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 03:29:06,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 03:29:06,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 03:29:06,245 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 03:29:06,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 03:29:06,245 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 03:29:06,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 03:29:06,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 03:29:06,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 03:29:06,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 03:29:06,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 03:29:06,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 03:29:06,246 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 03:29:06,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 03:29:06,246 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 03:29:06,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 03:29:06,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 03:29:06,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 03:29:06,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 03:29:06,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 03:29:06,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 03:29:06,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 03:29:06,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 03:29:06,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 03:29:06,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 03:29:06,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 03:29:06,247 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 03:29:06,248 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 03:29:06,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 03:29:06,248 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 03:29:06,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 03:29:06,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 03:29:06,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 03:29:06,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 03:29:06,501 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 03:29:06,504 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 03:29:06,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-02-16 03:29:06,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/362450464/d2b3de0fb4e44a5682b4f5b0efd9abc3/FLAG1c21428c5 [2022-02-16 03:29:06,987 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 03:29:06,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-02-16 03:29:07,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/362450464/d2b3de0fb4e44a5682b4f5b0efd9abc3/FLAG1c21428c5 [2022-02-16 03:29:07,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/362450464/d2b3de0fb4e44a5682b4f5b0efd9abc3 [2022-02-16 03:29:07,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 03:29:07,358 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 03:29:07,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 03:29:07,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 03:29:07,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 03:29:07,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32bc3d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07, skipping insertion in model container [2022-02-16 03:29:07,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 03:29:07,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 03:29:07,585 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-16 03:29:07,774 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] [2022-02-16 03:29:07,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 03:29:07,799 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 03:29:07,813 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-16 03:29:07,841 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] [2022-02-16 03:29:07,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 03:29:07,900 INFO L208 MainTranslator]: Completed translation [2022-02-16 03:29:07,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07 WrapperNode [2022-02-16 03:29:07,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 03:29:07,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 03:29:07,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 03:29:07,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 03:29:07,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,960 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-02-16 03:29:07,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 03:29:07,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 03:29:07,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 03:29:07,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 03:29:07,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 03:29:07,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 03:29:07,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 03:29:07,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 03:29:07,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07" (1/1) ... [2022-02-16 03:29:07,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 03:29:08,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 03:29:08,017 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) [2022-02-16 03:29:08,033 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 [2022-02-16 03:29:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-16 03:29:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 03:29:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-16 03:29:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-16 03:29:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 03:29:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 03:29:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 03:29:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-02-16 03:29:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-02-16 03:29:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 03:29:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 03:29:08,058 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 03:29:08,183 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 03:29:08,184 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 03:29:08,363 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 03:29:08,369 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 03:29:08,370 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-16 03:29:08,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:29:08 BoogieIcfgContainer [2022-02-16 03:29:08,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 03:29:08,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 03:29:08,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 03:29:08,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 03:29:08,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 03:29:07" (1/3) ... [2022-02-16 03:29:08,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e788f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 03:29:08, skipping insertion in model container [2022-02-16 03:29:08,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:07" (2/3) ... [2022-02-16 03:29:08,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e788f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 03:29:08, skipping insertion in model container [2022-02-16 03:29:08,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:29:08" (3/3) ... [2022-02-16 03:29:08,379 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-02-16 03:29:08,383 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 03:29:08,384 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 03:29:08,384 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 03:29:08,384 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 03:29:08,409 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,410 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,410 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,410 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,410 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,411 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,411 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,411 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,411 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,412 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,412 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,412 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,412 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,413 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,413 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,415 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,417 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,417 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,418 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,418 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,422 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,423 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,423 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,423 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,423 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,423 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 03:29:08,428 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-16 03:29:08,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 03:29:08,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 03:29:08,473 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) [2022-02-16 03:29:08,479 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 [2022-02-16 03:29:08,507 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 03:29:08,516 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=false, 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 [2022-02-16 03:29:08,516 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-16 03:29:08,529 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 74 transitions, 156 flow [2022-02-16 03:29:08,572 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 132 states, 131 states have (on average 1.6870229007633588) internal successors, (221), 131 states have internal predecessors, (221), 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) [2022-02-16 03:29:08,603 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-02-16 03:29:08,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 03:29:08,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 03:29:08,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1647222963, now seen corresponding path program 1 times [2022-02-16 03:29:08,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 03:29:08,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724276467] [2022-02-16 03:29:08,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 03:29:08,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 03:29:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 03:29:08,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 03:29:08,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 03:29:08,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724276467] [2022-02-16 03:29:08,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724276467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 03:29:08,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 03:29:08,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 03:29:08,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011884241] [2022-02-16 03:29:08,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 03:29:08,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-16 03:29:08,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 03:29:08,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-16 03:29:08,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-16 03:29:08,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:08,920 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 03:29:08,921 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) [2022-02-16 03:29:08,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:08,945 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-02-16 03:29:08,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:08,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 03:29:08,947 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 03:29:08,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 03:29:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1450709458, now seen corresponding path program 1 times [2022-02-16 03:29:08,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 03:29:08,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813504376] [2022-02-16 03:29:08,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 03:29:08,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 03:29:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 03:29:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 03:29:09,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 03:29:09,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813504376] [2022-02-16 03:29:09,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813504376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 03:29:09,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 03:29:09,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 03:29:09,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053929385] [2022-02-16 03:29:09,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 03:29:09,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 03:29:09,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 03:29:09,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 03:29:09,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 03:29:09,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:09,063 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 03:29:09,063 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) [2022-02-16 03:29:09,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:09,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:09,094 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 74 transitions and produced 75 states. [2022-02-16 03:29:09,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:09,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 03:29:09,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 03:29:09,096 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 03:29:09,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 03:29:09,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2009823221, now seen corresponding path program 1 times [2022-02-16 03:29:09,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 03:29:09,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402389676] [2022-02-16 03:29:09,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 03:29:09,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 03:29:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 03:29:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 03:29:09,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 03:29:09,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402389676] [2022-02-16 03:29:09,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402389676] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 03:29:09,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013063026] [2022-02-16 03:29:09,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 03:29:09,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 03:29:09,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 03:29:09,239 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) [2022-02-16 03:29:09,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 03:29:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 03:29:09,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-16 03:29:09,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 03:29:09,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 03:29:09,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 03:29:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 03:29:09,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013063026] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 03:29:09,664 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 03:29:09,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-16 03:29:09,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451743283] [2022-02-16 03:29:09,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 03:29:09,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-16 03:29:09,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 03:29:09,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-16 03:29:09,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-16 03:29:09,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:09,668 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 03:29:09,668 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) [2022-02-16 03:29:09,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:09,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 03:29:09,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:09,785 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 98 transitions and produced 99 states. [2022-02-16 03:29:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 03:29:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 03:29:09,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-16 03:29:10,003 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 [2022-02-16 03:29:10,004 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 03:29:10,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 03:29:10,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1859989397, now seen corresponding path program 2 times [2022-02-16 03:29:10,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 03:29:10,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012985888] [2022-02-16 03:29:10,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 03:29:10,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 03:29:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 03:29:10,111 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 03:29:10,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 03:29:10,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012985888] [2022-02-16 03:29:10,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012985888] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 03:29:10,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676911161] [2022-02-16 03:29:10,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 03:29:10,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 03:29:10,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 03:29:10,115 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) [2022-02-16 03:29:10,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 03:29:10,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 03:29:10,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 03:29:10,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-16 03:29:10,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 03:29:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 03:29:10,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 03:29:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 03:29:10,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676911161] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 03:29:10,522 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 03:29:10,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-02-16 03:29:10,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121329398] [2022-02-16 03:29:10,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 03:29:10,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-16 03:29:10,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 03:29:10,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-16 03:29:10,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-02-16 03:29:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:10,524 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 03:29:10,524 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) [2022-02-16 03:29:10,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 03:29:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 03:29:10,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:10,739 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 146 transitions and produced 139 states. [2022-02-16 03:29:10,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:10,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 03:29:10,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 03:29:10,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-16 03:29:10,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-16 03:29:10,967 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 [2022-02-16 03:29:10,968 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 03:29:10,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 03:29:10,968 INFO L85 PathProgramCache]: Analyzing trace with hash -185566933, now seen corresponding path program 3 times [2022-02-16 03:29:10,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 03:29:10,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425171662] [2022-02-16 03:29:10,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 03:29:10,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 03:29:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 03:29:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 03:29:11,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 03:29:11,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425171662] [2022-02-16 03:29:11,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425171662] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 03:29:11,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710691301] [2022-02-16 03:29:11,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 03:29:11,149 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 03:29:11,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 03:29:11,150 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) [2022-02-16 03:29:11,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 03:29:11,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-16 03:29:11,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 03:29:11,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-16 03:29:11,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 03:29:11,470 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-02-16 03:29:11,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-16 03:29:11,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710691301] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 03:29:11,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-16 03:29:11,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2022-02-16 03:29:11,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670663911] [2022-02-16 03:29:11,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 03:29:11,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 03:29:11,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 03:29:11,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 03:29:11,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-02-16 03:29:11,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:11,472 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 03:29:11,472 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) [2022-02-16 03:29:11,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:11,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 03:29:11,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 03:29:11,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-16 03:29:11,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:11,573 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 185 transitions and produced 151 states. [2022-02-16 03:29:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 03:29:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 03:29:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 03:29:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-16 03:29:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 03:29:11,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-16 03:29:11,774 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 [2022-02-16 03:29:11,774 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 03:29:11,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 03:29:11,775 INFO L85 PathProgramCache]: Analyzing trace with hash 884916797, now seen corresponding path program 1 times [2022-02-16 03:29:11,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 03:29:11,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283875819] [2022-02-16 03:29:11,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 03:29:11,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 03:29:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 03:29:11,808 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-16 03:29:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 03:29:11,849 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-16 03:29:11,849 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-16 03:29:11,850 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-16 03:29:11,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-16 03:29:11,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-02-16 03:29:11,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-16 03:29:11,857 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-02-16 03:29:11,862 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 03:29:11,862 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 03:29:11,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 03:29:11 BasicIcfg [2022-02-16 03:29:11,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 03:29:11,917 INFO L158 Benchmark]: Toolchain (without parser) took 4559.78ms. Allocated memory was 176.2MB in the beginning and 249.6MB in the end (delta: 73.4MB). Free memory was 117.0MB in the beginning and 152.5MB in the end (delta: -35.5MB). Peak memory consumption was 38.3MB. Max. memory is 8.0GB. [2022-02-16 03:29:11,918 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 176.2MB. Free memory is still 135.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 03:29:11,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.01ms. Allocated memory was 176.2MB in the beginning and 249.6MB in the end (delta: 73.4MB). Free memory was 116.9MB in the beginning and 212.0MB in the end (delta: -95.1MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. [2022-02-16 03:29:11,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.16ms. Allocated memory is still 249.6MB. Free memory was 212.0MB in the beginning and 210.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 03:29:11,919 INFO L158 Benchmark]: Boogie Preprocessor took 20.71ms. Allocated memory is still 249.6MB. Free memory was 210.4MB in the beginning and 208.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 03:29:11,919 INFO L158 Benchmark]: RCFGBuilder took 388.61ms. Allocated memory is still 249.6MB. Free memory was 208.9MB in the beginning and 195.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-16 03:29:11,919 INFO L158 Benchmark]: TraceAbstraction took 3544.07ms. Allocated memory is still 249.6MB. Free memory was 195.3MB in the beginning and 152.5MB in the end (delta: 42.7MB). Peak memory consumption was 43.8MB. Max. memory is 8.0GB. [2022-02-16 03:29:11,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 176.2MB. Free memory is still 135.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 537.01ms. Allocated memory was 176.2MB in the beginning and 249.6MB in the end (delta: 73.4MB). Free memory was 116.9MB in the beginning and 212.0MB in the end (delta: -95.1MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.16ms. Allocated memory is still 249.6MB. Free memory was 212.0MB in the beginning and 210.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.71ms. Allocated memory is still 249.6MB. Free memory was 210.4MB in the beginning and 208.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 388.61ms. Allocated memory is still 249.6MB. Free memory was 208.9MB in the beginning and 195.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3544.07ms. Allocated memory is still 249.6MB. Free memory was 195.3MB in the beginning and 152.5MB in the end (delta: 42.7MB). Peak memory consumption was 43.8MB. 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] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=6] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=6] - 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: 3.4s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=0, InterpolantAutomatonStates: 44, 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, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 638 NumberOfCodeBlocks, 613 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 670 ConstructedInterpolants, 0 QuantifiedInterpolants, 954 SizeOfPredicates, 12 NumberOfNonLiveVariables, 495 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 112/281 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! [2022-02-16 03:29:11,953 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 [2022-02-16 03:29:12,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...