/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-44898dd [2022-02-10 12:28:58,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 12:28:58,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 12:28:58,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 12:28:58,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 12:28:58,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 12:28:58,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 12:28:58,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 12:28:58,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 12:28:58,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 12:28:58,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 12:28:58,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 12:28:58,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 12:28:59,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 12:28:59,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 12:28:59,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 12:28:59,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 12:28:59,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 12:28:59,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 12:28:59,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 12:28:59,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 12:28:59,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 12:28:59,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 12:28:59,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 12:28:59,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 12:28:59,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 12:28:59,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 12:28:59,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 12:28:59,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 12:28:59,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 12:28:59,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 12:28:59,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 12:28:59,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 12:28:59,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 12:28:59,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 12:28:59,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 12:28:59,028 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-02-10 12:28:59,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 12:28:59,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 12:28:59,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 12:28:59,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 12:28:59,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 12:28:59,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 12:28:59,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 12:28:59,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 12:28:59,078 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 12:28:59,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 12:28:59,078 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 12:28:59,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 12:28:59,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 12:28:59,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 12:28:59,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 12:28:59,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 12:28:59,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 12:28:59,079 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 12:28:59,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 12:28:59,079 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 12:28:59,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 12:28:59,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 12:28:59,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 12:28:59,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 12:28:59,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 12:28:59,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 12:28:59,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 12:28:59,081 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-10 12:28:59,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 12:28:59,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 12:28:59,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 12:28:59,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 12:28:59,081 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 12:28:59,081 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-10 12:28:59,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 12:28:59,081 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-10 12:28:59,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 12:28:59,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 12:28:59,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 12:28:59,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 12:28:59,257 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 12:28:59,259 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 12:28:59,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-02-10 12:28:59,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f6acc335/d37b1bea79634999a4af046b76707889/FLAG658b581be [2022-02-10 12:28:59,712 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 12:28:59,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-02-10 12:28:59,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f6acc335/d37b1bea79634999a4af046b76707889/FLAG658b581be [2022-02-10 12:28:59,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f6acc335/d37b1bea79634999a4af046b76707889 [2022-02-10 12:28:59,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 12:28:59,744 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 12:28:59,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 12:28:59,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 12:28:59,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 12:28:59,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 12:28:59" (1/1) ... [2022-02-10 12:28:59,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36079473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:28:59, skipping insertion in model container [2022-02-10 12:28:59,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 12:28:59" (1/1) ... [2022-02-10 12:28:59,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 12:28:59,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 12:28:59,946 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-10 12:29:00,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-02-10 12:29:00,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 12:29:00,111 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 12:29:00,122 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-10 12:29:00,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-02-10 12:29:00,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 12:29:00,185 INFO L208 MainTranslator]: Completed translation [2022-02-10 12:29:00,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00 WrapperNode [2022-02-10 12:29:00,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 12:29:00,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 12:29:00,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 12:29:00,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 12:29:00,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00" (1/1) ... [2022-02-10 12:29:00,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00" (1/1) ... [2022-02-10 12:29:00,214 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-02-10 12:29:00,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 12:29:00,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 12:29:00,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 12:29:00,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 12:29:00,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00" (1/1) ... [2022-02-10 12:29:00,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00" (1/1) ... [2022-02-10 12:29:00,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00" (1/1) ... [2022-02-10 12:29:00,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00" (1/1) ... [2022-02-10 12:29:00,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00" (1/1) ... [2022-02-10 12:29:00,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00" (1/1) ... [2022-02-10 12:29:00,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00" (1/1) ... [2022-02-10 12:29:00,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 12:29:00,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 12:29:00,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 12:29:00,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 12:29:00,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00" (1/1) ... [2022-02-10 12:29:00,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 12:29:00,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:29:00,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 12:29:00,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 12:29:00,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 12:29:00,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 12:29:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-10 12:29:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 12:29:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 12:29:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 12:29:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 12:29:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-02-10 12:29:00,308 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-02-10 12:29:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 12:29:00,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 12:29:00,309 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 12:29:00,379 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 12:29:00,380 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 12:29:00,518 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 12:29:00,522 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 12:29:00,522 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-10 12:29:00,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:29:00 BoogieIcfgContainer [2022-02-10 12:29:00,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 12:29:00,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 12:29:00,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 12:29:00,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 12:29:00,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 12:28:59" (1/3) ... [2022-02-10 12:29:00,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e59e769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 12:29:00, skipping insertion in model container [2022-02-10 12:29:00,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:29:00" (2/3) ... [2022-02-10 12:29:00,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e59e769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 12:29:00, skipping insertion in model container [2022-02-10 12:29:00,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:29:00" (3/3) ... [2022-02-10 12:29:00,529 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-02-10 12:29:00,532 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 12:29:00,532 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 12:29:00,532 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 12:29:00,532 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 12:29:00,554 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,555 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,555 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,555 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,555 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,555 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,555 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,556 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,556 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,556 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,556 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,557 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,557 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,557 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,564 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,564 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:29:00,582 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 12:29:00,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-10 12:29:00,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:29:00,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-10 12:29:00,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-10 12:29:00,668 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 12:29:00,673 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 [2022-02-10 12:29:00,674 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 12:29:00,757 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-02-10 12:29:00,760 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 12:29:00,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:29:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1647222963, now seen corresponding path program 1 times [2022-02-10 12:29:00,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:29:00,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217278394] [2022-02-10 12:29:00,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:29:00,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:29:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:29:01,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:01,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:29:01,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217278394] [2022-02-10 12:29:01,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217278394] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 12:29:01,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 12:29:01,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 12:29:01,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295829931] [2022-02-10 12:29:01,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 12:29:01,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 12:29:01,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:29:01,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 12:29:01,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 12:29:01,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:01,055 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:29:01,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 12:29:01,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:01,088 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-02-10 12:29:01,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:01,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 12:29:01,089 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 12:29:01,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:29:01,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1450709458, now seen corresponding path program 1 times [2022-02-10 12:29:01,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:29:01,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745114078] [2022-02-10 12:29:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:29:01,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:29:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:29:01,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:01,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:29:01,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745114078] [2022-02-10 12:29:01,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745114078] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 12:29:01,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 12:29:01,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 12:29:01,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974713273] [2022-02-10 12:29:01,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 12:29:01,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 12:29:01,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:29:01,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 12:29:01,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 12:29:01,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:01,178 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:29:01,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 12:29:01,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:01,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:01,224 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 74 transitions and produced 75 states. [2022-02-10 12:29:01,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:01,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:01,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 12:29:01,225 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 12:29:01,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:29:01,225 INFO L85 PathProgramCache]: Analyzing trace with hash -2009823221, now seen corresponding path program 1 times [2022-02-10 12:29:01,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:29:01,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018398294] [2022-02-10 12:29:01,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:29:01,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:29:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:29:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:01,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:29:01,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018398294] [2022-02-10 12:29:01,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018398294] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:29:01,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609600303] [2022-02-10 12:29:01,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:29:01,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:29:01,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:29:01,288 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 12:29:01,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 12:29:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:29:01,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 12:29:01,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:29:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:01,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:29:01,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:01,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609600303] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:29:01,676 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:29:01,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 12:29:01,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683914021] [2022-02-10 12:29:01,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:29:01,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 12:29:01,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:29:01,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 12:29:01,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 12:29:01,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:01,681 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:29:01,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 12:29:01,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:01,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:01,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:01,873 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 98 transitions and produced 97 states. [2022-02-10 12:29:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:29:01,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 12:29:02,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-02-10 12:29:02,089 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 12:29:02,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:29:02,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1859989397, now seen corresponding path program 2 times [2022-02-10 12:29:02,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:29:02,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950808447] [2022-02-10 12:29:02,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:29:02,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:29:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:29:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:02,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:29:02,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950808447] [2022-02-10 12:29:02,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950808447] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:29:02,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288615678] [2022-02-10 12:29:02,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 12:29:02,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:29:02,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:29:02,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 12:29:02,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 12:29:02,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 12:29:02,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 12:29:02,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 12:29:02,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:29:02,382 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:02,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:29:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:02,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288615678] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:29:02,501 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:29:02,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-02-10 12:29:02,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016684692] [2022-02-10 12:29:02,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:29:02,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 12:29:02,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:29:02,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 12:29:02,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-02-10 12:29:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:02,503 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:29:02,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 12:29:02,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:02,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:02,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:29:02,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:02,736 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 146 transitions and produced 138 states. [2022-02-10 12:29:02,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:02,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:02,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:29:02,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:29:02,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 12:29:02,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:29:02,952 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 12:29:02,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:29:02,953 INFO L85 PathProgramCache]: Analyzing trace with hash -185566933, now seen corresponding path program 3 times [2022-02-10 12:29:02,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:29:02,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425189346] [2022-02-10 12:29:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:29:02,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:29:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:29:03,094 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:03,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:29:03,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425189346] [2022-02-10 12:29:03,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425189346] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:29:03,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940684416] [2022-02-10 12:29:03,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 12:29:03,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:29:03,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:29:03,097 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 12:29:03,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 12:29:03,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-10 12:29:03,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 12:29:03,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-10 12:29:03,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:29:03,419 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-02-10 12:29:03,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 12:29:03,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940684416] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 12:29:03,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 12:29:03,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2022-02-10 12:29:03,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990287025] [2022-02-10 12:29:03,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 12:29:03,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 12:29:03,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:29:03,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 12:29:03,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-02-10 12:29:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:03,422 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:29:03,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 12:29:03,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:03,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:03,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:29:03,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:29:03,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:07,355 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 659 transitions and produced 645 states. [2022-02-10 12:29:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:29:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:29:07,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 12:29:07,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 12:29:07,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:29:07,557 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 12:29:07,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:29:07,558 INFO L85 PathProgramCache]: Analyzing trace with hash -91214928, now seen corresponding path program 4 times [2022-02-10 12:29:07,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:29:07,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812500671] [2022-02-10 12:29:07,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:29:07,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:29:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:29:08,151 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:08,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:29:08,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812500671] [2022-02-10 12:29:08,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812500671] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:29:08,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045538359] [2022-02-10 12:29:08,152 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 12:29:08,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:29:08,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:29:08,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 12:29:08,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 12:29:08,244 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 12:29:08,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 12:29:08,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-10 12:29:08,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:29:08,539 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:08,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:29:09,782 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:09,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045538359] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:29:09,782 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:29:09,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 86 [2022-02-10 12:29:09,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540717496] [2022-02-10 12:29:09,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:29:09,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-10 12:29:09,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:29:09,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-10 12:29:09,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1892, Invalid=5418, Unknown=0, NotChecked=0, Total=7310 [2022-02-10 12:29:09,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:09,787 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:29:09,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 3.127906976744186) internal successors, (269), 86 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 12:29:09,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:09,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:09,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:29:09,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:29:09,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-10 12:29:09,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:13,773 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 731 transitions and produced 650 states. [2022-02-10 12:29:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:29:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:29:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 12:29:13,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-10 12:29:13,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 12:29:13,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:29:13,976 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 12:29:13,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:29:13,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1060786512, now seen corresponding path program 5 times [2022-02-10 12:29:13,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:29:13,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941948777] [2022-02-10 12:29:13,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:29:13,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:29:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:29:16,896 INFO L134 CoverageAnalysis]: Checked inductivity of 7209 backedges. 7000 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:16,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:29:16,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941948777] [2022-02-10 12:29:16,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941948777] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:29:16,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686509225] [2022-02-10 12:29:16,897 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 12:29:16,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:29:16,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:29:16,898 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 12:29:16,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 12:29:17,063 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 55 check-sat command(s) [2022-02-10 12:29:17,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 12:29:17,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 88 conjunts are in the unsatisfiable core [2022-02-10 12:29:17,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:29:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 7209 backedges. 6934 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-02-10 12:29:17,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 12:29:17,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686509225] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 12:29:17,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 12:29:17,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [109] total 111 [2022-02-10 12:29:17,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450496662] [2022-02-10 12:29:17,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 12:29:17,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-02-10 12:29:17,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:29:17,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-02-10 12:29:17,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3030, Invalid=9180, Unknown=0, NotChecked=0, Total=12210 [2022-02-10 12:29:17,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:17,606 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:29:17,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 3.101123595505618) internal successors, (276), 89 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 12:29:17,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:17,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:17,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:29:17,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:29:17,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-10 12:29:17,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-02-10 12:29:17,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:20,845 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 736 transitions and produced 658 states. [2022-02-10 12:29:20,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:20,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:20,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:29:20,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:29:20,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 12:29:20,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-10 12:29:20,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-02-10 12:29:20,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-10 12:29:21,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:29:21,047 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 12:29:21,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:29:21,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1466433283, now seen corresponding path program 1 times [2022-02-10 12:29:21,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:29:21,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709552649] [2022-02-10 12:29:21,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:29:21,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:29:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:29:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:23,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:29:23,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709552649] [2022-02-10 12:29:23,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709552649] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:29:23,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829852962] [2022-02-10 12:29:23,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:29:23,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:29:23,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:29:23,846 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 12:29:23,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 12:29:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:29:23,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 173 conjunts are in the unsatisfiable core [2022-02-10 12:29:23,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:29:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:24,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:29:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:29:25,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829852962] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:29:25,684 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:29:25,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88, 88] total 88 [2022-02-10 12:29:25,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886210440] [2022-02-10 12:29:25,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:29:25,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-10 12:29:25,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:29:25,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-10 12:29:25,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7483, Unknown=0, NotChecked=0, Total=7656 [2022-02-10 12:29:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:25,688 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:29:25,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 3.0454545454545454) internal successors, (268), 88 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 12:29:25,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:25,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:25,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:29:25,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:29:25,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-10 12:29:25,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-02-10 12:29:25,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-02-10 12:29:25,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:54,718 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6641 transitions and produced 6564 states. [2022-02-10 12:29:54,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:29:54,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:29:54,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:29:54,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:29:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 12:29:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-10 12:29:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-02-10 12:29:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-10 12:29:54,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-10 12:29:54,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:29:54,920 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 12:29:54,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:29:54,920 INFO L85 PathProgramCache]: Analyzing trace with hash 524598547, now seen corresponding path program 6 times [2022-02-10 12:29:54,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:29:54,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116955951] [2022-02-10 12:29:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:29:54,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:29:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 12:29:54,982 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 12:29:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 12:29:55,069 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 12:29:55,069 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-10 12:29:55,071 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-10 12:29:55,073 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 12:29:55,073 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-02-10 12:29:55,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 12:29:55,081 INFO L732 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1] [2022-02-10 12:29:55,086 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 12:29:55,086 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 12:29:55,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 12:29:55 BasicIcfg [2022-02-10 12:29:55,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 12:29:55,175 INFO L158 Benchmark]: Toolchain (without parser) took 55430.71ms. Allocated memory was 194.0MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 146.7MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-10 12:29:55,175 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory was 164.2MB in the beginning and 164.1MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 12:29:55,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.45ms. Allocated memory is still 194.0MB. Free memory was 146.5MB in the beginning and 160.2MB in the end (delta: -13.7MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. [2022-02-10 12:29:55,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.97ms. Allocated memory is still 194.0MB. Free memory was 160.2MB in the beginning and 158.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 12:29:55,177 INFO L158 Benchmark]: Boogie Preprocessor took 21.21ms. Allocated memory is still 194.0MB. Free memory was 158.1MB in the beginning and 156.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 12:29:55,177 INFO L158 Benchmark]: RCFGBuilder took 286.64ms. Allocated memory is still 194.0MB. Free memory was 156.5MB in the beginning and 144.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-10 12:29:55,177 INFO L158 Benchmark]: TraceAbstraction took 54649.33ms. Allocated memory was 194.0MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 144.5MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-10 12:29:55,178 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory was 164.2MB in the beginning and 164.1MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 439.45ms. Allocated memory is still 194.0MB. Free memory was 146.5MB in the beginning and 160.2MB in the end (delta: -13.7MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.97ms. Allocated memory is still 194.0MB. Free memory was 160.2MB in the beginning and 158.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.21ms. Allocated memory is still 194.0MB. Free memory was 158.1MB in the beginning and 156.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 286.64ms. Allocated memory is still 194.0MB. Free memory was 156.5MB in the beginning and 144.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 54649.33ms. Allocated memory was 194.0MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 144.5MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L713] 0 int i = 0; VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=1] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=2] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=3] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=4] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=5] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=6] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=7] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=8] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=9] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=10] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=11] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=12] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=13] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=14] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=15] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=16] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=17] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=18] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=19] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=20] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=21] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=22] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=23] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=24] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=25] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=26] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=27] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=28] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=29] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=30] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=31] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=32] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=33] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=34] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=35] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=36] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=37] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=38] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=39] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=40] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=41] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=41] [L714] 0 x = i VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=42] [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L713] COND FALSE 0 !(i <= 42) VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L716] 0 \read(t) VAL [\read(t)=-1, arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42] - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 54.4s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 40.8s, 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, 0.5s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 2316 NumberOfCodeBlocks, 2291 NumberOfCodeBlocksAsserted, 73 NumberOfCheckSat, 2581 ConstructedInterpolants, 0 QuantifiedInterpolants, 8443 SizeOfPredicates, 224 NumberOfNonLiveVariables, 1875 ConjunctsInSsa, 322 ConjunctsInUnsatCore, 18 InterpolantComputations, 4 PerfectInterpolantSequences, 14321/31154 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-10 12:29:55,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-10 12:29:55,404 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...