/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 01:47:13,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 01:47:13,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 01:47:13,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-16 01:47:13,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 01:47:13,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 01:47:13,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 01:47:13,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 01:47:13,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 01:47:13,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 01:47:13,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 01:47:13,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 01:47:13,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 01:47:13,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 01:47:13,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 01:47:13,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 01:47:13,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 01:47:13,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 01:47:13,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 01:47:13,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 01:47:13,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-16 01:47:13,286 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 01:47:13,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 01:47:13,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 01:47:13,287 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 01:47:13,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 01:47:13,288 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 01:47:13,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 01:47:13,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 01:47:13,289 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 01:47:13,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 01:47:13,290 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 01:47:13,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 01:47:13,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 01:47:13,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 01:47:13,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 01:47:13,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 01:47:13,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 01:47:13,290 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 01:47:13,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 01:47:13,291 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 01:47:13,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 01:47:13,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 01:47:13,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 01:47:13,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 01:47:13,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 01:47:13,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 01:47:13,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 01:47:13,292 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 01:47:13,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 01:47:13,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 01:47:13,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 01:47:13,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 01:47:13,292 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 01:47:13,292 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 01:47:13,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 01:47:13,292 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 01:47:13,293 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-16 01:47:13,293 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 01:47:13,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 01:47:13,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 01:47:13,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 01:47:13,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 01:47:13,530 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-16 01:47:13,537 INFO L275 PluginConnector]: CDTParser initialized [2022-03-16 01:47:13,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-03-16 01:47:13,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0da5ab5a/1aaedc62c8eb4f5cb8e40863b2c3aee5/FLAG61ef3c2c3 [2022-03-16 01:47:14,051 INFO L306 CDTParser]: Found 1 translation units. [2022-03-16 01:47:14,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-03-16 01:47:14,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0da5ab5a/1aaedc62c8eb4f5cb8e40863b2c3aee5/FLAG61ef3c2c3 [2022-03-16 01:47:14,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0da5ab5a/1aaedc62c8eb4f5cb8e40863b2c3aee5 [2022-03-16 01:47:14,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 01:47:14,577 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-16 01:47:14,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-16 01:47:14,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-16 01:47:14,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-16 01:47:14,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 01:47:14" (1/1) ... [2022-03-16 01:47:14,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694ba15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:14, skipping insertion in model container [2022-03-16 01:47:14,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 01:47:14" (1/1) ... [2022-03-16 01:47:14,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-16 01:47:14,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-16 01:47:14,759 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-03-16 01:47:14,893 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] [2022-03-16 01:47:14,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 01:47:14,916 INFO L203 MainTranslator]: Completed pre-run [2022-03-16 01:47:14,929 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-03-16 01:47:14,973 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] [2022-03-16 01:47:14,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 01:47:15,016 INFO L208 MainTranslator]: Completed translation [2022-03-16 01:47:15,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15 WrapperNode [2022-03-16 01:47:15,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-16 01:47:15,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 01:47:15,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 01:47:15,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 01:47:15,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15" (1/1) ... [2022-03-16 01:47:15,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15" (1/1) ... [2022-03-16 01:47:15,065 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-03-16 01:47:15,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 01:47:15,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 01:47:15,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 01:47:15,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 01:47:15,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15" (1/1) ... [2022-03-16 01:47:15,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15" (1/1) ... [2022-03-16 01:47:15,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15" (1/1) ... [2022-03-16 01:47:15,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15" (1/1) ... [2022-03-16 01:47:15,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15" (1/1) ... [2022-03-16 01:47:15,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15" (1/1) ... [2022-03-16 01:47:15,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15" (1/1) ... [2022-03-16 01:47:15,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 01:47:15,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 01:47:15,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 01:47:15,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 01:47:15,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15" (1/1) ... [2022-03-16 01:47:15,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 01:47:15,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 01:47:15,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-16 01:47:15,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-16 01:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-16 01:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-16 01:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-16 01:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-16 01:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-16 01:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-16 01:47:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-16 01:47:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-03-16 01:47:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-03-16 01:47:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 01:47:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 01:47:15,170 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 01:47:15,280 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 01:47:15,281 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 01:47:15,430 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 01:47:15,435 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 01:47:15,435 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-16 01:47:15,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 01:47:15 BoogieIcfgContainer [2022-03-16 01:47:15,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 01:47:15,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 01:47:15,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 01:47:15,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 01:47:15,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 01:47:14" (1/3) ... [2022-03-16 01:47:15,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3331cce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 01:47:15, skipping insertion in model container [2022-03-16 01:47:15,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 01:47:15" (2/3) ... [2022-03-16 01:47:15,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3331cce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 01:47:15, skipping insertion in model container [2022-03-16 01:47:15,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 01:47:15" (3/3) ... [2022-03-16 01:47:15,456 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-03-16 01:47:15,460 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 01:47:15,460 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 01:47:15,460 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 01:47:15,460 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 01:47:15,504 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,504 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,505 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,505 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,505 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,505 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,505 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,505 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,505 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,506 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,506 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,506 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,506 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,506 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,507 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,507 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,507 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,507 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,507 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,507 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,510 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,510 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,510 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,510 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,510 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,510 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 01:47:15,513 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-16 01:47:15,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 01:47:15,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 01:47:15,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-16 01:47:15,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-16 01:47:15,622 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 01:47:15,629 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-16 01:47:15,629 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 01:47:15,891 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-03-16 01:47:15,893 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 01:47:15,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 01:47:15,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1647222963, now seen corresponding path program 1 times [2022-03-16 01:47:15,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 01:47:15,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396524610] [2022-03-16 01:47:15,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 01:47:15,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 01:47:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 01:47:16,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 01:47:16,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 01:47:16,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396524610] [2022-03-16 01:47:16,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396524610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 01:47:16,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 01:47:16,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-16 01:47:16,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844344910] [2022-03-16 01:47:16,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 01:47:16,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-16 01:47:16,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 01:47:16,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-16 01:47:16,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-16 01:47:16,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:16,163 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 01:47:16,164 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) [2022-03-16 01:47:16,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:16,271 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-03-16 01:47:16,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:16,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 01:47:16,273 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 01:47:16,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 01:47:16,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1450709458, now seen corresponding path program 1 times [2022-03-16 01:47:16,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 01:47:16,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114261898] [2022-03-16 01:47:16,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 01:47:16,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 01:47:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 01:47:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 01:47:16,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 01:47:16,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114261898] [2022-03-16 01:47:16,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114261898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 01:47:16,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 01:47:16,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 01:47:16,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931365005] [2022-03-16 01:47:16,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 01:47:16,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 01:47:16,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 01:47:16,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 01:47:16,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 01:47:16,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:16,411 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 01:47:16,411 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) [2022-03-16 01:47:16,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:16,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:16,542 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 74 transitions and produced 75 states. [2022-03-16 01:47:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 01:47:16,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 01:47:16,544 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 01:47:16,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 01:47:16,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2009823221, now seen corresponding path program 1 times [2022-03-16 01:47:16,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 01:47:16,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121586852] [2022-03-16 01:47:16,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 01:47:16,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 01:47:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 01:47:16,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 01:47:16,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 01:47:16,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121586852] [2022-03-16 01:47:16,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121586852] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 01:47:16,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925052038] [2022-03-16 01:47:16,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 01:47:16,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 01:47:16,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 01:47:16,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 01:47:16,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 01:47:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 01:47:16,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-16 01:47:16,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 01:47:16,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 01:47:16,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 01:47:17,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 01:47:17,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925052038] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 01:47:17,043 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 01:47:17,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-16 01:47:17,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062978361] [2022-03-16 01:47:17,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 01:47:17,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-16 01:47:17,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 01:47:17,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-16 01:47:17,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-16 01:47:17,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:17,047 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 01:47:17,051 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) [2022-03-16 01:47:17,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:17,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 01:47:17,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:17,417 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 98 transitions and produced 99 states. [2022-03-16 01:47:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 01:47:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 01:47:17,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 01:47:17,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-03-16 01:47:17,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 01:47:17,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 01:47:17,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1859989397, now seen corresponding path program 2 times [2022-03-16 01:47:17,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 01:47:17,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482204550] [2022-03-16 01:47:17,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 01:47:17,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 01:47:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 01:47:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 01:47:17,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 01:47:17,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482204550] [2022-03-16 01:47:17,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482204550] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 01:47:17,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135234894] [2022-03-16 01:47:17,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 01:47:17,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 01:47:17,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 01:47:17,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 01:47:17,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 01:47:17,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 01:47:17,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 01:47:17,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-16 01:47:17,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 01:47:17,970 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 01:47:17,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 01:47:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 01:47:18,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135234894] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 01:47:18,135 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 01:47:18,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-03-16 01:47:18,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489927438] [2022-03-16 01:47:18,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 01:47:18,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-16 01:47:18,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 01:47:18,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-16 01:47:18,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-16 01:47:18,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:18,137 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 01:47:18,138 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) [2022-03-16 01:47:18,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:18,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 01:47:18,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 01:47:18,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:18,698 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 146 transitions and produced 139 states. [2022-03-16 01:47:18,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:18,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 01:47:18,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 01:47:18,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 01:47:18,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 01:47:18,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 01:47:18,916 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 01:47:18,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 01:47:18,917 INFO L85 PathProgramCache]: Analyzing trace with hash -185566933, now seen corresponding path program 3 times [2022-03-16 01:47:18,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 01:47:18,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316314054] [2022-03-16 01:47:18,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 01:47:18,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 01:47:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 01:47:19,095 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 01:47:19,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 01:47:19,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316314054] [2022-03-16 01:47:19,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316314054] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 01:47:19,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012865754] [2022-03-16 01:47:19,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 01:47:19,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 01:47:19,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 01:47:19,109 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) [2022-03-16 01:47:19,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 01:47:19,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-16 01:47:19,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 01:47:19,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-16 01:47:19,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 01:47:19,392 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-03-16 01:47:19,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-16 01:47:19,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012865754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 01:47:19,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-16 01:47:19,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2022-03-16 01:47:19,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971381513] [2022-03-16 01:47:19,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 01:47:19,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-16 01:47:19,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 01:47:19,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-16 01:47:19,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-03-16 01:47:19,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:19,395 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 01:47:19,395 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) [2022-03-16 01:47:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 01:47:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 01:47:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 01:47:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:19,880 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 185 transitions and produced 151 states. [2022-03-16 01:47:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 01:47:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 01:47:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 01:47:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 01:47:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 01:47:19,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-16 01:47:20,085 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 [2022-03-16 01:47:20,086 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 01:47:20,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 01:47:20,087 INFO L85 PathProgramCache]: Analyzing trace with hash 884916797, now seen corresponding path program 1 times [2022-03-16 01:47:20,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 01:47:20,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667634058] [2022-03-16 01:47:20,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 01:47:20,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 01:47:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 01:47:20,157 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-16 01:47:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 01:47:20,209 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-16 01:47:20,210 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-16 01:47:20,210 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-16 01:47:20,212 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 01:47:20,212 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-03-16 01:47:20,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-16 01:47:20,219 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-03-16 01:47:20,222 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 01:47:20,222 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 01:47:20,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 01:47:20 BasicIcfg [2022-03-16 01:47:20,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 01:47:20,276 INFO L158 Benchmark]: Toolchain (without parser) took 5699.25ms. Allocated memory was 213.9MB in the beginning and 406.8MB in the end (delta: 192.9MB). Free memory was 187.7MB in the beginning and 277.7MB in the end (delta: -90.0MB). Peak memory consumption was 102.2MB. Max. memory is 8.0GB. [2022-03-16 01:47:20,277 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 213.9MB. Free memory is still 175.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 01:47:20,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.08ms. Allocated memory is still 213.9MB. Free memory was 187.7MB in the beginning and 178.2MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 01:47:20,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.80ms. Allocated memory is still 213.9MB. Free memory was 178.2MB in the beginning and 176.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 01:47:20,278 INFO L158 Benchmark]: Boogie Preprocessor took 16.27ms. Allocated memory is still 213.9MB. Free memory was 176.1MB in the beginning and 174.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 01:47:20,278 INFO L158 Benchmark]: RCFGBuilder took 352.59ms. Allocated memory is still 213.9MB. Free memory was 174.8MB in the beginning and 162.8MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-16 01:47:20,278 INFO L158 Benchmark]: TraceAbstraction took 4837.80ms. Allocated memory was 213.9MB in the beginning and 406.8MB in the end (delta: 192.9MB). Free memory was 162.5MB in the beginning and 277.7MB in the end (delta: -115.2MB). Peak memory consumption was 78.8MB. Max. memory is 8.0GB. [2022-03-16 01:47:20,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 213.9MB. Free memory is still 175.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 439.08ms. Allocated memory is still 213.9MB. Free memory was 187.7MB in the beginning and 178.2MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.80ms. Allocated memory is still 213.9MB. Free memory was 178.2MB in the beginning and 176.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.27ms. Allocated memory is still 213.9MB. Free memory was 176.1MB in the beginning and 174.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 352.59ms. Allocated memory is still 213.9MB. Free memory was 174.8MB in the beginning and 162.8MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 4837.80ms. Allocated memory was 213.9MB in the beginning and 406.8MB in the end (delta: 192.9MB). Free memory was 162.5MB in the beginning and 277.7MB in the end (delta: -115.2MB). Peak memory consumption was 78.8MB. 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: 4.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 1.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred 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, 1.2s 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! [2022-03-16 01:47:20,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-16 01:47:20,538 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...