/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 15:59:39,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 15:59:39,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 15:59:39,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 15:59:39,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 15:59:39,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 15:59:39,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 15:59:39,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 15:59:39,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 15:59:39,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 15:59:39,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 15:59:39,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 15:59:39,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 15:59:39,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 15:59:39,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 15:59:39,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 15:59:39,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 15:59:39,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 15:59:39,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 15:59:39,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 15:59:39,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 15:59:39,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 15:59:39,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 15:59:39,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 15:59:39,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 15:59:39,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 15:59:39,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 15:59:39,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 15:59:39,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-16 15:59:39,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 15:59:39,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 15:59:39,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 15:59:39,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 15:59:39,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 15:59:39,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 15:59:39,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 15:59:39,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 15:59:39,958 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 15:59:39,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 15:59:39,959 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 15:59:39,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 15:59:39,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 15:59:39,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 15:59:39,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 15:59:39,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 15:59:39,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 15:59:39,960 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 15:59:39,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 15:59:39,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 15:59:39,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 15:59:39,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 15:59:39,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 15:59:39,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 15:59:39,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 15:59:39,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 15:59:39,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 15:59:39,961 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 15:59:39,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 15:59:39,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 15:59:39,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 15:59:39,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 15:59:39,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 15:59:39,961 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 15:59:39,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 15:59:39,962 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 15:59:39,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 15:59:40,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 15:59:40,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 15:59:40,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 15:59:40,196 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-16 15:59:40,197 INFO L275 PluginConnector]: CDTParser initialized [2022-03-16 15:59:40,198 INFO L432 ainManager$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 15:59:40,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc5f4f63/410654b804134228a5fc2afa4d3a9df6/FLAGa028cce98 [2022-03-16 15:59:40,633 INFO L306 CDTParser]: Found 1 translation units. [2022-03-16 15:59:40,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-03-16 15:59:40,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc5f4f63/410654b804134228a5fc2afa4d3a9df6/FLAGa028cce98 [2022-03-16 15:59:41,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc5f4f63/410654b804134228a5fc2afa4d3a9df6 [2022-03-16 15:59:41,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 15:59:41,030 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-16 15:59:41,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-16 15:59:41,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-16 15:59:41,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-16 15:59:41,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e25a3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41, skipping insertion in model container [2022-03-16 15:59:41,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-16 15:59:41,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-16 15:59:41,160 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-03-16 15:59:41,295 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 15:59:41,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 15:59:41,319 INFO L203 MainTranslator]: Completed pre-run [2022-03-16 15:59:41,332 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-03-16 15:59:41,354 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 15:59:41,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 15:59:41,383 INFO L208 MainTranslator]: Completed translation [2022-03-16 15:59:41,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41 WrapperNode [2022-03-16 15:59:41,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-16 15:59:41,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 15:59:41,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 15:59:41,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 15:59:41,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,419 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-03-16 15:59:41,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 15:59:41,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 15:59:41,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 15:59:41,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 15:59:41,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 15:59:41,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 15:59:41,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 15:59:41,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 15:59:41,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41" (1/1) ... [2022-03-16 15:59:41,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 15:59:41,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 15:59:41,473 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 15:59:41,475 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 15:59:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-16 15:59:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-16 15:59:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-16 15:59:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-16 15:59:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-16 15:59:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-16 15:59:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-16 15:59:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-03-16 15:59:41,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-03-16 15:59:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 15:59:41,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 15:59:41,543 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 15:59:41,612 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 15:59:41,613 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 15:59:41,756 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 15:59:41,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 15:59:41,761 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-16 15:59:41,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 03:59:41 BoogieIcfgContainer [2022-03-16 15:59:41,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 15:59:41,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 15:59:41,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 15:59:41,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 15:59:41,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 03:59:41" (1/3) ... [2022-03-16 15:59:41,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6107b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:59:41, skipping insertion in model container [2022-03-16 15:59:41,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:59:41" (2/3) ... [2022-03-16 15:59:41,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6107b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:59:41, skipping insertion in model container [2022-03-16 15:59:41,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 03:59:41" (3/3) ... [2022-03-16 15:59:41,768 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-03-16 15:59:41,771 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 15:59:41,772 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 15:59:41,772 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 15:59:41,772 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 15:59:41,824 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,824 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,824 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,824 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,825 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,825 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,827 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,827 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,827 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,827 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,827 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,829 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,830 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,830 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,830 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,830 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,830 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 15:59:41,833 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-16 15:59:41,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 15:59:41,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 15:59:41,881 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 15:59:41,882 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 15:59:41,900 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 15:59:41,905 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-16 15:59:41,905 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 15:59:42,097 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-03-16 15:59:42,099 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 15:59:42,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 15:59:42,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1647222963, now seen corresponding path program 1 times [2022-03-16 15:59:42,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 15:59:42,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637029336] [2022-03-16 15:59:42,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 15:59:42,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 15:59:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 15:59:42,279 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 15:59:42,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 15:59:42,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637029336] [2022-03-16 15:59:42,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637029336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 15:59:42,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 15:59:42,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-16 15:59:42,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747280428] [2022-03-16 15:59:42,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 15:59:42,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-16 15:59:42,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 15:59:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-16 15:59:42,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-16 15:59:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:42,304 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 15:59:42,305 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 15:59:42,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:42,422 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-03-16 15:59:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:42,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 15:59:42,423 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 15:59:42,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 15:59:42,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1450709458, now seen corresponding path program 1 times [2022-03-16 15:59:42,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 15:59:42,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558638733] [2022-03-16 15:59:42,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 15:59:42,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 15:59:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 15:59:42,558 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 15:59:42,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 15:59:42,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558638733] [2022-03-16 15:59:42,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558638733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 15:59:42,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 15:59:42,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 15:59:42,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492061489] [2022-03-16 15:59:42,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 15:59:42,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 15:59:42,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 15:59:42,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 15:59:42,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 15:59:42,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:42,561 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 15:59:42,561 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 15:59:42,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:42,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:42,725 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 74 transitions and produced 75 states. [2022-03-16 15:59:42,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:42,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 15:59:42,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 15:59:42,733 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 15:59:42,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 15:59:42,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2009823221, now seen corresponding path program 1 times [2022-03-16 15:59:42,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 15:59:42,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374812884] [2022-03-16 15:59:42,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 15:59:42,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 15:59:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 15:59:42,823 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 15:59:42,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 15:59:42,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374812884] [2022-03-16 15:59:42,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374812884] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 15:59:42,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565863515] [2022-03-16 15:59:42,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 15:59:42,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 15:59:42,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 15:59:42,828 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 15:59:42,880 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 15:59:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 15:59:42,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-16 15:59:42,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 15:59:43,088 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 15:59:43,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 15:59:43,194 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 15:59:43,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565863515] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 15:59:43,194 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 15:59:43,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-16 15:59:43,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524377681] [2022-03-16 15:59:43,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 15:59:43,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-16 15:59:43,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 15:59:43,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-16 15:59:43,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-16 15:59:43,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:43,199 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 15:59:43,201 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 15:59:43,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:43,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 15:59:43,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:43,548 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 98 transitions and produced 97 states. [2022-03-16 15:59:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 15:59:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 15:59:43,588 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 15:59:43,787 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 15:59:43,787 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 15:59:43,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 15:59:43,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1859989397, now seen corresponding path program 2 times [2022-03-16 15:59:43,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 15:59:43,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690848160] [2022-03-16 15:59:43,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 15:59:43,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 15:59:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 15:59:43,880 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 15:59:43,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 15:59:43,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690848160] [2022-03-16 15:59:43,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690848160] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 15:59:43,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105755970] [2022-03-16 15:59:43,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 15:59:43,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 15:59:43,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 15:59:43,883 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 15:59:43,909 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 15:59:43,949 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 15:59:43,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 15:59:43,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-16 15:59:43,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 15:59:44,052 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 15:59:44,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 15:59:44,167 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 15:59:44,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105755970] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 15:59:44,168 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 15:59:44,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-03-16 15:59:44,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333907449] [2022-03-16 15:59:44,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 15:59:44,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-16 15:59:44,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 15:59:44,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-16 15:59:44,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-16 15:59:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:44,170 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 15:59:44,170 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 15:59:44,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:44,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 15:59:44,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 15:59:44,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:44,726 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 146 transitions and produced 138 states. [2022-03-16 15:59:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 15:59:44,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 15:59:44,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 15:59:44,757 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 15:59:44,955 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 15:59:44,956 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 15:59:44,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 15:59:44,957 INFO L85 PathProgramCache]: Analyzing trace with hash -185566933, now seen corresponding path program 3 times [2022-03-16 15:59:44,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 15:59:44,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851619511] [2022-03-16 15:59:44,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 15:59:44,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 15:59:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 15:59:45,138 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 15:59:45,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 15:59:45,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851619511] [2022-03-16 15:59:45,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851619511] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 15:59:45,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025598658] [2022-03-16 15:59:45,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 15:59:45,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 15:59:45,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 15:59:45,141 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 15:59:45,142 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 15:59:45,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-16 15:59:45,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 15:59:45,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-16 15:59:45,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 15:59:45,421 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 15:59:45,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-16 15:59:45,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025598658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 15:59:45,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-16 15:59:45,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2022-03-16 15:59:45,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29915516] [2022-03-16 15:59:45,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 15:59:45,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-16 15:59:45,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 15:59:45,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-16 15:59:45,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-03-16 15:59:45,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:45,425 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 15:59:45,425 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 15:59:45,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:45,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 15:59:45,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 15:59:45,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 15:59:45,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:46,962 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 659 transitions and produced 645 states. [2022-03-16 15:59:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 15:59:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 15:59:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 15:59:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 15:59:46,981 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 15:59:47,175 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 15:59:47,176 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 15:59:47,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 15:59:47,176 INFO L85 PathProgramCache]: Analyzing trace with hash -91214928, now seen corresponding path program 4 times [2022-03-16 15:59:47,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 15:59:47,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892411372] [2022-03-16 15:59:47,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 15:59:47,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 15:59:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 15:59:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 15:59:47,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 15:59:47,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892411372] [2022-03-16 15:59:47,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892411372] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 15:59:47,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202932229] [2022-03-16 15:59:47,617 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 15:59:47,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 15:59:47,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 15:59:47,619 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 15:59:47,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 15:59:47,758 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 15:59:47,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 15:59:47,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-16 15:59:47,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 15:59:48,042 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 15:59:48,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 15:59:49,358 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 15:59:49,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202932229] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 15:59:49,359 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 15:59:49,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 86 [2022-03-16 15:59:49,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603981981] [2022-03-16 15:59:49,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 15:59:49,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-03-16 15:59:49,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 15:59:49,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-03-16 15:59:49,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1892, Invalid=5418, Unknown=0, NotChecked=0, Total=7310 [2022-03-16 15:59:49,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:49,364 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 15:59:49,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 3.127906976744186) internal successors, (269), 86 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 15:59:49,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:49,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 15:59:49,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 15:59:49,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 15:59:49,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 15:59:49,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:53,637 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 731 transitions and produced 650 states. [2022-03-16 15:59:53,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:53,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 15:59:53,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 15:59:53,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 15:59:53,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 15:59:53,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-03-16 15:59:53,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-16 15:59:53,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 15:59:53,852 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 15:59:53,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 15:59:53,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1060786512, now seen corresponding path program 5 times [2022-03-16 15:59:53,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 15:59:53,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130007786] [2022-03-16 15:59:53,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 15:59:53,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 15:59:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 15:59:56,365 INFO L134 CoverageAnalysis]: Checked inductivity of 7209 backedges. 7000 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 15:59:56,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 15:59:56,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130007786] [2022-03-16 15:59:56,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130007786] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 15:59:56,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537313752] [2022-03-16 15:59:56,366 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 15:59:56,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 15:59:56,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 15:59:56,372 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 15:59:56,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 15:59:56,560 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 55 check-sat command(s) [2022-03-16 15:59:56,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 15:59:56,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 88 conjunts are in the unsatisfiable core [2022-03-16 15:59:56,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 15:59:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 7209 backedges. 6934 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-03-16 15:59:57,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-16 15:59:57,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537313752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 15:59:57,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-16 15:59:57,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [109] total 111 [2022-03-16 15:59:57,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895162507] [2022-03-16 15:59:57,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 15:59:57,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-03-16 15:59:57,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 15:59:57,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-03-16 15:59:57,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3030, Invalid=9180, Unknown=0, NotChecked=0, Total=12210 [2022-03-16 15:59:57,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:57,135 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 15:59:57,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 3.101123595505618) internal successors, (276), 89 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 15:59:57,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 15:59:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 15:59:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 15:59:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 15:59:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 15:59:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-03-16 15:59:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:00:01,754 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 736 transitions and produced 658 states. [2022-03-16 16:00:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:00:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 16:00:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 16:00:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 16:00:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 16:00:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-03-16 16:00:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 16:00:01,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 16:00:01,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 16:00:01,975 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 16:00:01,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 16:00:01,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1466433283, now seen corresponding path program 1 times [2022-03-16 16:00:01,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 16:00:01,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978037463] [2022-03-16 16:00:01,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 16:00:01,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 16:00:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 16:00:04,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 16:00:04,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 16:00:04,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978037463] [2022-03-16 16:00:04,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978037463] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 16:00:04,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408005417] [2022-03-16 16:00:04,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 16:00:04,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 16:00:04,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 16:00:04,816 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 16:00:04,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 16:00:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 16:00:04,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 173 conjunts are in the unsatisfiable core [2022-03-16 16:00:04,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 16:00:05,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 16:00:05,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 16:00:06,573 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 16:00:06,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408005417] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 16:00:06,574 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 16:00:06,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88, 88] total 88 [2022-03-16 16:00:06,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293639041] [2022-03-16 16:00:06,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 16:00:06,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-03-16 16:00:06,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 16:00:06,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-03-16 16:00:06,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7483, Unknown=0, NotChecked=0, Total=7656 [2022-03-16 16:00:06,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:00:06,579 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 16:00:06,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 3.0454545454545454) internal successors, (268), 88 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 16:00:06,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:00:06,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 16:00:06,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 16:00:06,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 16:00:06,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 16:00:06,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-03-16 16:00:06,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 16:00:06,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:00:40,597 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6641 transitions and produced 6564 states. [2022-03-16 16:00:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:00:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 16:00:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 16:00:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 16:00:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 16:00:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-03-16 16:00:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 16:00:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-16 16:00:40,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-16 16:00:40,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 16:00:40,812 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 16:00:40,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 16:00:40,812 INFO L85 PathProgramCache]: Analyzing trace with hash 524598547, now seen corresponding path program 6 times [2022-03-16 16:00:40,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 16:00:40,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22225435] [2022-03-16 16:00:40,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 16:00:40,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 16:00:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 16:00:40,891 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-16 16:00:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 16:00:40,987 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-16 16:00:40,988 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-16 16:00:40,988 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-16 16:00:40,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 16:00:40,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-03-16 16:00:40,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-16 16:00:40,995 INFO L732 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1] [2022-03-16 16:00:40,999 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 16:00:40,999 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 16:00:41,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 04:00:41 BasicIcfg [2022-03-16 16:00:41,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 16:00:41,107 INFO L158 Benchmark]: Toolchain (without parser) took 60077.03ms. Allocated memory was 167.8MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 116.4MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-16 16:00:41,108 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 16:00:41,108 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.17ms. Allocated memory is still 167.8MB. Free memory was 116.2MB in the beginning and 135.2MB in the end (delta: -19.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-16 16:00:41,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.22ms. Allocated memory is still 167.8MB. Free memory was 135.2MB in the beginning and 133.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 16:00:41,108 INFO L158 Benchmark]: Boogie Preprocessor took 14.87ms. Allocated memory is still 167.8MB. Free memory was 133.1MB in the beginning and 131.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 16:00:41,108 INFO L158 Benchmark]: RCFGBuilder took 327.03ms. Allocated memory is still 167.8MB. Free memory was 131.7MB in the beginning and 120.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-16 16:00:41,109 INFO L158 Benchmark]: TraceAbstraction took 59343.37ms. Allocated memory was 167.8MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 119.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-16 16:00:41,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 352.17ms. Allocated memory is still 167.8MB. Free memory was 116.2MB in the beginning and 135.2MB in the end (delta: -19.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.22ms. Allocated memory is still 167.8MB. Free memory was 135.2MB in the beginning and 133.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.87ms. Allocated memory is still 167.8MB. Free memory was 133.1MB in the beginning and 131.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 327.03ms. Allocated memory is still 167.8MB. Free memory was 131.7MB in the beginning and 120.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 59343.37ms. Allocated memory was 167.8MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 119.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L713] 0 int i = 0; VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=1] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=2] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=3] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=4] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=5] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=6] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=7] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=8] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=9] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=10] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=11] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=12] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=13] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=14] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=15] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=16] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=17] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=18] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=19] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=20] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=21] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=22] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=23] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=24] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=25] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=26] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=27] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=28] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=29] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=30] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=31] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=32] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=33] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=34] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=35] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=36] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=37] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=38] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=39] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=40] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=41] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=41] [L714] 0 x = i VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=42] [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L713] COND FALSE 0 !(i <= 42) VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L716] 0 \read(t) VAL [\read(t)=-1, arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42] - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 59.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 45.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 431, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 2316 NumberOfCodeBlocks, 2291 NumberOfCodeBlocksAsserted, 73 NumberOfCheckSat, 2581 ConstructedInterpolants, 0 QuantifiedInterpolants, 8443 SizeOfPredicates, 224 NumberOfNonLiveVariables, 1875 ConjunctsInSsa, 322 ConjunctsInUnsatCore, 18 InterpolantComputations, 4 PerfectInterpolantSequences, 14321/31154 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-03-16 16:00:41,136 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 16:00:41,355 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...