/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_05-lockfuns_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:01:19,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:01:19,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:01:19,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:01:19,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:01:19,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:01:19,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:01:19,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:01:19,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:01:19,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:01:19,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:01:19,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:01:19,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:01:19,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:01:19,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:01:19,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:01:19,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:01:19,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:01:19,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:01:19,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:01:19,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:01:19,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:01:19,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:01:19,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:01:19,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 22:01:19,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 22:01:19,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 22:01:19,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 22:01:19,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 22:01:19,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 22:01:19,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 22:01:19,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 22:01:19,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 22:01:19,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 22:01:19,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 22:01:19,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 22:01:19,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 22:01:19,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 22:01:19,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:01:19,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:01:19,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:01:19,444 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-FA-NoLbe.epf [2022-02-10 22:01:19,480 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:01:19,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:01:19,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:01:19,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:01:19,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:01:19,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:01:19,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:01:19,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:01:19,482 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:01:19,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:01:19,483 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:01:19,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:01:19,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:01:19,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:01:19,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:01:19,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:01:19,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:01:19,484 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:01:19,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:01:19,484 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:01:19,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:01:19,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:01:19,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:01:19,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:01:19,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:01:19,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:01:19,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:01:19,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:01:19,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:01:19,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:01:19,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:01:19,487 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:01:19,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:01:19,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:01:19,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:01:19,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:01:19,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:01:19,720 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:01:19,722 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:01:19,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2022-02-10 22:01:19,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/489b5d8f1/a54846d5220a40b8a08066e0098a0ef8/FLAGa28d2c9a4 [2022-02-10 22:01:20,204 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:01:20,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2022-02-10 22:01:20,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/489b5d8f1/a54846d5220a40b8a08066e0098a0ef8/FLAGa28d2c9a4 [2022-02-10 22:01:20,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/489b5d8f1/a54846d5220a40b8a08066e0098a0ef8 [2022-02-10 22:01:20,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:01:20,577 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:01:20,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:01:20,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:01:20,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:01:20,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:01:20" (1/1) ... [2022-02-10 22:01:20,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48495944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:20, skipping insertion in model container [2022-02-10 22:01:20,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:01:20" (1/1) ... [2022-02-10 22:01:20,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:01:20,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:01:20,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_05-lockfuns_racefree.i[30176,30189] [2022-02-10 22:01:20,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:01:20,945 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:01:20,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_05-lockfuns_racefree.i[30176,30189] [2022-02-10 22:01:21,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:01:21,039 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:01:21,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21 WrapperNode [2022-02-10 22:01:21,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:01:21,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:01:21,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:01:21,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:01:21,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21" (1/1) ... [2022-02-10 22:01:21,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21" (1/1) ... [2022-02-10 22:01:21,102 INFO L137 Inliner]: procedures = 172, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 106 [2022-02-10 22:01:21,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:01:21,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:01:21,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:01:21,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:01:21,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21" (1/1) ... [2022-02-10 22:01:21,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21" (1/1) ... [2022-02-10 22:01:21,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21" (1/1) ... [2022-02-10 22:01:21,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21" (1/1) ... [2022-02-10 22:01:21,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21" (1/1) ... [2022-02-10 22:01:21,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21" (1/1) ... [2022-02-10 22:01:21,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21" (1/1) ... [2022-02-10 22:01:21,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:01:21,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:01:21,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:01:21,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:01:21,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21" (1/1) ... [2022-02-10 22:01:21,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:01:21,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:01:21,176 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 22:01:21,211 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 22:01:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:01:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:01:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-10 22:01:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:01:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:01:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-10 22:01:21,226 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-10 22:01:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:01:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:01:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:01:21,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:01:21,228 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 22:01:21,363 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:01:21,364 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:01:21,572 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:01:21,578 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:01:21,578 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-02-10 22:01:21,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:01:21 BoogieIcfgContainer [2022-02-10 22:01:21,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:01:21,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:01:21,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:01:21,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:01:21,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:01:20" (1/3) ... [2022-02-10 22:01:21,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7040bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:01:21, skipping insertion in model container [2022-02-10 22:01:21,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:01:21" (2/3) ... [2022-02-10 22:01:21,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7040bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:01:21, skipping insertion in model container [2022-02-10 22:01:21,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:01:21" (3/3) ... [2022-02-10 22:01:21,587 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_05-lockfuns_racefree.i [2022-02-10 22:01:21,591 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:01:21,591 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:01:21,591 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:01:21,591 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:01:21,615 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,616 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,616 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,616 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,616 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,616 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,616 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,617 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,617 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,617 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,617 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,617 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,618 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,618 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,618 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,618 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,619 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,619 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,619 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,619 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,619 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,620 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,620 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,620 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,620 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,620 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,621 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,621 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,621 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,621 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,621 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,622 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,622 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,622 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,622 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,622 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,623 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,623 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,626 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,626 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,626 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,626 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,626 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,626 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,627 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,627 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,630 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:21,634 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 22:01:21,667 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:01:21,673 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=FINITE_AUTOMATA, 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 22:01:21,673 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 22:01:21,682 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 106 places, 115 transitions, 238 flow [2022-02-10 22:01:21,755 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 864 states, 861 states have (on average 2.1835075493612077) internal successors, (1880), 863 states have internal predecessors, (1880), 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 22:01:21,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 864 states, 861 states have (on average 2.1835075493612077) internal successors, (1880), 863 states have internal predecessors, (1880), 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 22:01:21,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-10 22:01:21,769 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:01:21,769 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:01:21,769 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:01:21,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:01:21,773 INFO L85 PathProgramCache]: Analyzing trace with hash 943706821, now seen corresponding path program 1 times [2022-02-10 22:01:21,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:01:21,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872526079] [2022-02-10 22:01:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:01:21,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:01:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:01:21,934 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 22:01:21,935 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:01:21,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872526079] [2022-02-10 22:01:21,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872526079] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:01:21,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:01:21,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:01:21,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039013299] [2022-02-10 22:01:21,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:01:21,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:01:21,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:01:21,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:01:21,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:01:21,974 INFO L87 Difference]: Start difference. First operand has 864 states, 861 states have (on average 2.1835075493612077) internal successors, (1880), 863 states have internal predecessors, (1880), 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) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 22:01:22,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:01:22,014 INFO L93 Difference]: Finished difference Result 835 states and 1563 transitions. [2022-02-10 22:01:22,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:01:22,019 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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) Word has length 43 [2022-02-10 22:01:22,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:01:22,034 INFO L225 Difference]: With dead ends: 835 [2022-02-10 22:01:22,034 INFO L226 Difference]: Without dead ends: 748 [2022-02-10 22:01:22,035 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:01:22,042 INFO L934 BasicCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:01:22,043 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:01:22,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-02-10 22:01:22,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2022-02-10 22:01:22,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 745 states have (on average 1.8724832214765101) internal successors, (1395), 747 states have internal predecessors, (1395), 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 22:01:22,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1395 transitions. [2022-02-10 22:01:22,135 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1395 transitions. Word has length 43 [2022-02-10 22:01:22,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:01:22,135 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1395 transitions. [2022-02-10 22:01:22,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 22:01:22,136 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1395 transitions. [2022-02-10 22:01:22,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-10 22:01:22,137 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:01:22,137 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:01:22,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:01:22,138 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:01:22,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:01:22,138 INFO L85 PathProgramCache]: Analyzing trace with hash 438148196, now seen corresponding path program 1 times [2022-02-10 22:01:22,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:01:22,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248361739] [2022-02-10 22:01:22,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:01:22,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:01:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:01:22,234 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 22:01:22,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:01:22,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248361739] [2022-02-10 22:01:22,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248361739] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:01:22,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:01:22,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:01:22,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664725595] [2022-02-10 22:01:22,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:01:22,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:01:22,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:01:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:01:22,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:01:22,239 INFO L87 Difference]: Start difference. First operand 748 states and 1395 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 22:01:22,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:01:22,282 INFO L93 Difference]: Finished difference Result 734 states and 1381 transitions. [2022-02-10 22:01:22,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:01:22,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) Word has length 43 [2022-02-10 22:01:22,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:01:22,286 INFO L225 Difference]: With dead ends: 734 [2022-02-10 22:01:22,286 INFO L226 Difference]: Without dead ends: 734 [2022-02-10 22:01:22,287 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:01:22,288 INFO L934 BasicCegarLoop]: 77 mSDtfsCounter, 35 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:01:22,288 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 148 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:01:22,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2022-02-10 22:01:22,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 734. [2022-02-10 22:01:22,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 732 states have (on average 1.8866120218579234) internal successors, (1381), 733 states have internal predecessors, (1381), 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 22:01:22,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1381 transitions. [2022-02-10 22:01:22,309 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1381 transitions. Word has length 43 [2022-02-10 22:01:22,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:01:22,310 INFO L470 AbstractCegarLoop]: Abstraction has 734 states and 1381 transitions. [2022-02-10 22:01:22,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 22:01:22,310 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1381 transitions. [2022-02-10 22:01:22,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-10 22:01:22,311 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:01:22,311 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:01:22,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:01:22,312 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:01:22,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:01:22,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1685952027, now seen corresponding path program 1 times [2022-02-10 22:01:22,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:01:22,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077652122] [2022-02-10 22:01:22,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:01:22,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:01:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 22:01:22,346 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 22:01:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 22:01:22,385 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 22:01:22,385 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 22:01:22,386 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 22:01:22,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 22:01:22,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:01:22,391 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-10 22:01:22,391 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 22:01:22,392 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-10 22:01:22,404 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,404 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,404 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,404 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,404 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,404 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,404 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,405 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,405 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,405 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,405 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,405 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,405 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,406 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,406 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,406 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,406 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,406 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,406 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,407 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,407 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,407 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,407 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,407 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,407 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,408 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,408 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,408 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,408 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,408 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,408 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,408 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,409 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,409 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,409 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,409 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,409 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,409 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,410 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,410 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,410 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,410 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,410 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,410 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,410 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,410 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,411 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,411 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,411 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,411 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,411 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,411 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,411 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,412 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,412 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,412 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,412 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,412 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,413 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,413 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,413 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,413 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,413 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,413 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,413 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,414 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,414 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,414 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,414 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,414 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,414 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,414 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,414 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,415 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,415 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,415 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,415 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,416 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,416 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,416 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,416 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,416 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,416 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,416 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,416 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,417 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,417 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,417 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,417 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,417 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,418 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,418 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,418 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,418 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:22,424 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 22:01:22,431 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:01:22,434 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=FINITE_AUTOMATA, 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 22:01:22,434 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 22:01:22,436 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 150 transitions, 318 flow [2022-02-10 22:01:23,223 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23572 states, 23568 states have (on average 3.3835285132382893) internal successors, (79743), 23571 states have internal predecessors, (79743), 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 22:01:23,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 23572 states, 23568 states have (on average 3.3835285132382893) internal successors, (79743), 23571 states have internal predecessors, (79743), 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 22:01:23,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-10 22:01:23,287 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:01:23,287 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:01:23,287 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:01:23,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:01:23,288 INFO L85 PathProgramCache]: Analyzing trace with hash 115204507, now seen corresponding path program 1 times [2022-02-10 22:01:23,288 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:01:23,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561490486] [2022-02-10 22:01:23,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:01:23,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:01:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:01:23,365 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 22:01:23,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:01:23,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561490486] [2022-02-10 22:01:23,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561490486] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:01:23,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:01:23,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:01:23,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858328203] [2022-02-10 22:01:23,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:01:23,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:01:23,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:01:23,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:01:23,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:01:23,427 INFO L87 Difference]: Start difference. First operand has 23572 states, 23568 states have (on average 3.3835285132382893) internal successors, (79743), 23571 states have internal predecessors, (79743), 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) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 22:01:23,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:01:23,870 INFO L93 Difference]: Finished difference Result 22759 states and 65040 transitions. [2022-02-10 22:01:23,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:01:23,871 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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) Word has length 43 [2022-02-10 22:01:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:01:24,003 INFO L225 Difference]: With dead ends: 22759 [2022-02-10 22:01:24,003 INFO L226 Difference]: Without dead ends: 20320 [2022-02-10 22:01:24,003 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:01:24,010 INFO L934 BasicCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:01:24,013 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:01:24,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20320 states. [2022-02-10 22:01:24,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20320 to 20320. [2022-02-10 22:01:24,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20320 states, 20316 states have (on average 2.854105138806852) internal successors, (57984), 20319 states have internal predecessors, (57984), 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 22:01:24,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20320 states to 20320 states and 57984 transitions. [2022-02-10 22:01:24,904 INFO L78 Accepts]: Start accepts. Automaton has 20320 states and 57984 transitions. Word has length 43 [2022-02-10 22:01:24,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:01:24,904 INFO L470 AbstractCegarLoop]: Abstraction has 20320 states and 57984 transitions. [2022-02-10 22:01:24,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 22:01:24,905 INFO L276 IsEmpty]: Start isEmpty. Operand 20320 states and 57984 transitions. [2022-02-10 22:01:24,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-10 22:01:24,906 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:01:24,906 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:01:24,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:01:24,906 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:01:24,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:01:24,908 INFO L85 PathProgramCache]: Analyzing trace with hash -390354118, now seen corresponding path program 1 times [2022-02-10 22:01:24,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:01:24,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898278977] [2022-02-10 22:01:24,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:01:24,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:01:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:01:25,030 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 22:01:25,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:01:25,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898278977] [2022-02-10 22:01:25,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898278977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:01:25,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:01:25,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:01:25,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087464506] [2022-02-10 22:01:25,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:01:25,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:01:25,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:01:25,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:01:25,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:01:25,033 INFO L87 Difference]: Start difference. First operand 20320 states and 57984 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 22:01:25,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:01:25,183 INFO L93 Difference]: Finished difference Result 20306 states and 57970 transitions. [2022-02-10 22:01:25,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:01:25,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) Word has length 43 [2022-02-10 22:01:25,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:01:25,254 INFO L225 Difference]: With dead ends: 20306 [2022-02-10 22:01:25,254 INFO L226 Difference]: Without dead ends: 20306 [2022-02-10 22:01:25,255 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:01:25,256 INFO L934 BasicCegarLoop]: 104 mSDtfsCounter, 35 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:01:25,258 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 204 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:01:25,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20306 states. [2022-02-10 22:01:25,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20306 to 20306. [2022-02-10 22:01:25,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20306 states, 20303 states have (on average 2.8552430675269664) internal successors, (57970), 20305 states have internal predecessors, (57970), 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 22:01:25,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20306 states to 20306 states and 57970 transitions. [2022-02-10 22:01:25,964 INFO L78 Accepts]: Start accepts. Automaton has 20306 states and 57970 transitions. Word has length 43 [2022-02-10 22:01:25,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:01:25,966 INFO L470 AbstractCegarLoop]: Abstraction has 20306 states and 57970 transitions. [2022-02-10 22:01:25,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 22:01:25,973 INFO L276 IsEmpty]: Start isEmpty. Operand 20306 states and 57970 transitions. [2022-02-10 22:01:25,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-10 22:01:25,976 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:01:25,976 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:01:25,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:01:25,976 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:01:25,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:01:25,977 INFO L85 PathProgramCache]: Analyzing trace with hash -993521947, now seen corresponding path program 1 times [2022-02-10 22:01:25,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:01:25,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287593234] [2022-02-10 22:01:25,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:01:25,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:01:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:01:26,052 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 22:01:26,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:01:26,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287593234] [2022-02-10 22:01:26,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287593234] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:01:26,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404948771] [2022-02-10 22:01:26,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:01:26,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:01:26,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:01:26,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:01:26,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:01:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:01:26,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 22:01:26,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:01:26,333 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 22:01:26,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:01:26,439 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 22:01:26,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404948771] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:01:26,439 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:01:26,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 22:01:26,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661158299] [2022-02-10 22:01:26,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:01:26,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:01:26,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:01:26,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:01:26,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:01:26,444 INFO L87 Difference]: Start difference. First operand 20306 states and 57970 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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 22:01:26,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:01:26,537 INFO L93 Difference]: Finished difference Result 8938 states and 25056 transitions. [2022-02-10 22:01:26,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:01:26,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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) Word has length 53 [2022-02-10 22:01:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:01:26,560 INFO L225 Difference]: With dead ends: 8938 [2022-02-10 22:01:26,560 INFO L226 Difference]: Without dead ends: 8938 [2022-02-10 22:01:26,561 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:01:26,561 INFO L934 BasicCegarLoop]: 143 mSDtfsCounter, 565 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:01:26,562 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 597 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:01:26,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8938 states. [2022-02-10 22:01:26,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8938 to 8938. [2022-02-10 22:01:26,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8938 states, 8937 states have (on average 2.8036253776435047) internal successors, (25056), 8937 states have internal predecessors, (25056), 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 22:01:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8938 states to 8938 states and 25056 transitions. [2022-02-10 22:01:26,854 INFO L78 Accepts]: Start accepts. Automaton has 8938 states and 25056 transitions. Word has length 53 [2022-02-10 22:01:26,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:01:26,854 INFO L470 AbstractCegarLoop]: Abstraction has 8938 states and 25056 transitions. [2022-02-10 22:01:26,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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 22:01:26,855 INFO L276 IsEmpty]: Start isEmpty. Operand 8938 states and 25056 transitions. [2022-02-10 22:01:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-10 22:01:26,856 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:01:26,856 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:01:26,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-10 22:01:27,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-02-10 22:01:27,081 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:01:27,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:01:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash 210109917, now seen corresponding path program 1 times [2022-02-10 22:01:27,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:01:27,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629533460] [2022-02-10 22:01:27,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:01:27,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:01:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 22:01:27,103 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 22:01:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 22:01:27,123 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 22:01:27,123 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 22:01:27,123 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 22:01:27,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 22:01:27,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 22:01:27,124 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-10 22:01:27,124 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 22:01:27,124 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-02-10 22:01:27,137 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,137 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,140 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,140 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,140 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,140 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,140 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,140 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,141 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,141 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,141 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,141 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,141 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,141 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,141 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,141 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,142 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,142 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,142 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,142 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,142 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,142 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,142 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,143 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,143 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,143 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,143 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,143 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,144 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,144 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,144 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,144 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,144 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,144 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,144 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,144 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,145 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,145 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,145 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,145 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,145 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,145 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,146 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,146 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,146 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,146 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,146 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,146 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,147 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,147 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,147 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,147 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,147 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,148 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,148 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,148 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,148 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,148 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,148 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,148 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,149 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,149 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,149 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,149 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,149 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,150 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,150 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,150 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,150 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,150 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,150 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,150 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,150 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,151 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,151 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,151 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,151 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,151 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,151 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,152 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,152 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,152 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,152 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,152 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,152 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,153 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,153 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,153 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,153 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,153 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,153 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,153 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,153 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,154 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,154 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,154 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,154 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,154 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,154 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,154 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,154 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,155 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,155 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,155 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,155 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,155 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,156 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,156 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,156 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,156 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,156 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,156 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,157 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,157 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,157 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,157 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,157 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,157 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,157 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,158 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,158 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,158 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,158 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,158 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,159 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,159 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,159 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,159 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:01:27,161 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-10 22:01:27,162 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:01:27,163 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=FINITE_AUTOMATA, 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 22:01:27,163 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 22:01:27,167 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 166 places, 185 transitions, 400 flow [2022-02-10 22:01:48,714 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 659396 states, 659391 states have (on average 4.563712577211397) internal successors, (3009271), 659395 states have internal predecessors, (3009271), 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 22:01:50,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 659396 states, 659391 states have (on average 4.563712577211397) internal successors, (3009271), 659395 states have internal predecessors, (3009271), 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 22:01:50,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-10 22:01:50,051 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:01:50,051 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:01:50,051 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:01:50,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:01:50,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1670365364, now seen corresponding path program 1 times [2022-02-10 22:01:50,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:01:50,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398197464] [2022-02-10 22:01:50,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:01:50,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:01:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:01:50,076 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 22:01:50,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:01:50,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398197464] [2022-02-10 22:01:50,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398197464] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:01:50,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:01:50,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:01:50,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740869077] [2022-02-10 22:01:50,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:01:50,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:01:50,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:01:50,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:01:50,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:01:51,443 INFO L87 Difference]: Start difference. First operand has 659396 states, 659391 states have (on average 4.563712577211397) internal successors, (3009271), 659395 states have internal predecessors, (3009271), 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) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 22:02:03,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:02:03,246 INFO L93 Difference]: Finished difference Result 636631 states and 2434344 transitions. [2022-02-10 22:02:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:02:03,246 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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) Word has length 43 [2022-02-10 22:02:03,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:02:10,993 INFO L225 Difference]: With dead ends: 636631 [2022-02-10 22:02:10,993 INFO L226 Difference]: Without dead ends: 568336 [2022-02-10 22:02:10,993 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:02:10,994 INFO L934 BasicCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:02:10,994 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:02:13,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568336 states. [2022-02-10 22:02:53,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568336 to 568336. [2022-02-10 22:02:55,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568336 states, 568331 states have (on average 3.819816269040401) internal successors, (2170920), 568335 states have internal predecessors, (2170920), 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)