/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_24-sound_lock_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 13:55:02,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 13:55:02,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 13:55:02,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-18 13:55:02,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-18 13:55:02,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-18 13:55:02,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-18 13:55:02,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-18 13:55:02,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-18 13:55:02,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-18 13:55:02,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-18 13:55:02,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-18 13:55:02,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-18 13:55:02,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-18 13:55:02,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-18 13:55:02,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-18 13:55:02,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-18 13:55:02,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-18 13:55:02,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-18 13:55:02,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-18 13:55:02,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-18 13:55:02,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-18 13:55:02,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-18 13:55:02,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-18 13:55:02,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-18 13:55:02,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-18 13:55:02,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-18 13:55:02,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-18 13:55:02,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-18 13:55:02,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-18 13:55:02,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-18 13:55:02,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-18 13:55:02,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-18 13:55:02,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-18 13:55:02,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-18 13:55:02,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-18 13:55:02,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-18 13:55:02,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-18 13:55:02,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 13:55:02,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 13:55:02,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 13:55:02,638 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 [2022-02-18 13:55:02,660 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 13:55:02,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 13:55:02,661 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 13:55:02,661 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 13:55:02,662 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 13:55:02,662 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 13:55:02,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 13:55:02,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 13:55:02,663 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 13:55:02,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 13:55:02,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 13:55:02,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 13:55:02,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 13:55:02,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 13:55:02,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 13:55:02,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 13:55:02,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 13:55:02,664 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 13:55:02,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 13:55:02,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 13:55:02,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 13:55:02,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 13:55:02,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 13:55:02,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 13:55:02,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 13:55:02,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 13:55:02,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 13:55:02,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 13:55:02,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 13:55:02,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 13:55:02,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 13:55:02,667 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 13:55:02,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 13:55:02,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 13:55:02,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 13:55:02,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 13:55:02,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 13:55:02,907 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 13:55:02,908 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 13:55:02,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i [2022-02-18 13:55:02,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be99014e/4f47ed659f754656912fc6f5160772d2/FLAGd018526cf [2022-02-18 13:55:03,465 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 13:55:03,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i [2022-02-18 13:55:03,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be99014e/4f47ed659f754656912fc6f5160772d2/FLAGd018526cf [2022-02-18 13:55:03,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be99014e/4f47ed659f754656912fc6f5160772d2 [2022-02-18 13:55:03,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 13:55:03,998 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 13:55:04,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 13:55:04,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 13:55:04,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 13:55:04,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:55:03" (1/1) ... [2022-02-18 13:55:04,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627d21df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04, skipping insertion in model container [2022-02-18 13:55:04,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:55:03" (1/1) ... [2022-02-18 13:55:04,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 13:55:04,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 13:55:04,328 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_24-sound_lock_racing.i[30176,30189] [2022-02-18 13:55:04,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 13:55:04,368 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 13:55:04,424 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_24-sound_lock_racing.i[30176,30189] [2022-02-18 13:55:04,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 13:55:04,474 INFO L208 MainTranslator]: Completed translation [2022-02-18 13:55:04,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04 WrapperNode [2022-02-18 13:55:04,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 13:55:04,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 13:55:04,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 13:55:04,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 13:55:04,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04" (1/1) ... [2022-02-18 13:55:04,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04" (1/1) ... [2022-02-18 13:55:04,526 INFO L137 Inliner]: procedures = 170, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2022-02-18 13:55:04,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 13:55:04,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 13:55:04,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 13:55:04,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 13:55:04,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04" (1/1) ... [2022-02-18 13:55:04,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04" (1/1) ... [2022-02-18 13:55:04,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04" (1/1) ... [2022-02-18 13:55:04,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04" (1/1) ... [2022-02-18 13:55:04,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04" (1/1) ... [2022-02-18 13:55:04,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04" (1/1) ... [2022-02-18 13:55:04,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04" (1/1) ... [2022-02-18 13:55:04,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 13:55:04,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 13:55:04,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 13:55:04,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 13:55:04,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04" (1/1) ... [2022-02-18 13:55:04,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 13:55:04,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 13:55:04,580 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) [2022-02-18 13:55:04,585 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 [2022-02-18 13:55:04,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-18 13:55:04,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 13:55:04,614 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-18 13:55:04,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 13:55:04,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 13:55:04,615 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-18 13:55:04,615 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-18 13:55:04,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 13:55:04,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 13:55:04,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 13:55:04,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 13:55:04,616 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 13:55:04,711 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 13:55:04,717 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 13:55:04,954 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 13:55:04,961 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 13:55:04,961 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-02-18 13:55:04,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:55:04 BoogieIcfgContainer [2022-02-18 13:55:04,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 13:55:04,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 13:55:04,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 13:55:04,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 13:55:04,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 01:55:03" (1/3) ... [2022-02-18 13:55:04,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a07cec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:55:04, skipping insertion in model container [2022-02-18 13:55:04,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:55:04" (2/3) ... [2022-02-18 13:55:04,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a07cec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:55:04, skipping insertion in model container [2022-02-18 13:55:04,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:55:04" (3/3) ... [2022-02-18 13:55:04,970 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_24-sound_lock_racing.i [2022-02-18 13:55:04,974 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 13:55:04,974 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 13:55:04,974 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 13:55:04,975 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 13:55:05,004 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,004 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,006 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,006 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,006 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,007 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,007 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,007 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,007 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,007 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,008 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,008 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,008 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,008 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,009 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,009 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,009 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,010 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,010 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,010 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,010 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,010 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,011 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,011 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,011 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,011 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,012 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,012 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,012 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,012 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,013 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,013 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,013 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,013 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,014 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,014 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,017 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,018 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,018 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,018 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,018 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,019 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,019 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,019 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,019 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,023 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-18 13:55:05,061 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 13:55:05,067 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, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 13:55:05,067 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-18 13:55:05,077 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 119 transitions, 246 flow [2022-02-18 13:55:05,146 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 660 states, 657 states have (on average 2.188736681887367) internal successors, (1438), 659 states have internal predecessors, (1438), 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) [2022-02-18 13:55:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 660 states, 657 states have (on average 2.188736681887367) internal successors, (1438), 659 states have internal predecessors, (1438), 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) [2022-02-18 13:55:05,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-18 13:55:05,157 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:55:05,158 INFO L514 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] [2022-02-18 13:55:05,158 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-18 13:55:05,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:55:05,163 INFO L85 PathProgramCache]: Analyzing trace with hash 893611393, now seen corresponding path program 1 times [2022-02-18 13:55:05,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:55:05,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556911393] [2022-02-18 13:55:05,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:55:05,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:55:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:55:05,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:55:05,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:55:05,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556911393] [2022-02-18 13:55:05,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556911393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:55:05,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:55:05,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 13:55:05,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117605781] [2022-02-18 13:55:05,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:55:05,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 13:55:05,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:55:05,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 13:55:05,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 13:55:05,395 INFO L87 Difference]: Start difference. First operand has 660 states, 657 states have (on average 2.188736681887367) internal successors, (1438), 659 states have internal predecessors, (1438), 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 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2022-02-18 13:55:05,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:55:05,434 INFO L93 Difference]: Finished difference Result 636 states and 1164 transitions. [2022-02-18 13:55:05,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 13:55:05,437 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 52 [2022-02-18 13:55:05,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:55:05,451 INFO L225 Difference]: With dead ends: 636 [2022-02-18 13:55:05,451 INFO L226 Difference]: Without dead ends: 564 [2022-02-18 13:55:05,453 INFO L932 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 [2022-02-18 13:55:05,455 INFO L933 BasicCegarLoop]: 89 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, 89 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 [2022-02-18 13:55:05,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:55:05,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-02-18 13:55:05,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2022-02-18 13:55:05,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 561 states have (on average 1.8288770053475936) internal successors, (1026), 563 states have internal predecessors, (1026), 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) [2022-02-18 13:55:05,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 1026 transitions. [2022-02-18 13:55:05,529 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 1026 transitions. Word has length 52 [2022-02-18 13:55:05,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:55:05,530 INFO L470 AbstractCegarLoop]: Abstraction has 564 states and 1026 transitions. [2022-02-18 13:55:05,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2022-02-18 13:55:05,530 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 1026 transitions. [2022-02-18 13:55:05,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-18 13:55:05,531 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:55:05,532 INFO L514 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] [2022-02-18 13:55:05,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 13:55:05,532 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-18 13:55:05,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:55:05,533 INFO L85 PathProgramCache]: Analyzing trace with hash -903339966, now seen corresponding path program 1 times [2022-02-18 13:55:05,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:55:05,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486656983] [2022-02-18 13:55:05,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:55:05,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:55:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:55:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:55:05,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:55:05,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486656983] [2022-02-18 13:55:05,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486656983] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:55:05,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:55:05,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 13:55:05,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077138288] [2022-02-18 13:55:05,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:55:05,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 13:55:05,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:55:05,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 13:55:05,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 13:55:05,689 INFO L87 Difference]: Start difference. First operand 564 states and 1026 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-02-18 13:55:05,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:55:05,727 INFO L93 Difference]: Finished difference Result 553 states and 1015 transitions. [2022-02-18 13:55:05,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 13:55:05,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2022-02-18 13:55:05,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:55:05,731 INFO L225 Difference]: With dead ends: 553 [2022-02-18 13:55:05,731 INFO L226 Difference]: Without dead ends: 553 [2022-02-18 13:55:05,732 INFO L932 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 [2022-02-18 13:55:05,733 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 30 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 160 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 [2022-02-18 13:55:05,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 160 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:55:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-02-18 13:55:05,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2022-02-18 13:55:05,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 551 states have (on average 1.8421052631578947) internal successors, (1015), 552 states have internal predecessors, (1015), 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) [2022-02-18 13:55:05,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 1015 transitions. [2022-02-18 13:55:05,757 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 1015 transitions. Word has length 52 [2022-02-18 13:55:05,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:55:05,757 INFO L470 AbstractCegarLoop]: Abstraction has 553 states and 1015 transitions. [2022-02-18 13:55:05,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-02-18 13:55:05,758 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 1015 transitions. [2022-02-18 13:55:05,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-18 13:55:05,759 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:55:05,760 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:55:05,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 13:55:05,760 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-18 13:55:05,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:55:05,761 INFO L85 PathProgramCache]: Analyzing trace with hash -2133244280, now seen corresponding path program 1 times [2022-02-18 13:55:05,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:55:05,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220685597] [2022-02-18 13:55:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:55:05,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:55:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-18 13:55:05,793 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-18 13:55:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-18 13:55:05,836 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-18 13:55:05,837 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-18 13:55:05,838 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-18 13:55:05,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-18 13:55:05,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 13:55:05,843 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-18 13:55:05,844 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-18 13:55:05,844 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-18 13:55:05,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,858 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,858 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,859 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,859 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,864 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,864 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,864 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,865 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,870 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,871 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,871 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,872 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:05,874 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-18 13:55:05,876 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 13:55:05,877 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, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 13:55:05,877 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-18 13:55:05,879 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 134 places, 149 transitions, 316 flow [2022-02-18 13:55:06,425 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14391 states, 14387 states have (on average 3.4552026134704943) internal successors, (49710), 14390 states have internal predecessors, (49710), 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) [2022-02-18 13:55:06,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 14391 states, 14387 states have (on average 3.4552026134704943) internal successors, (49710), 14390 states have internal predecessors, (49710), 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) [2022-02-18 13:55:06,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-18 13:55:06,465 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:55:06,465 INFO L514 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] [2022-02-18 13:55:06,466 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-18 13:55:06,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:55:06,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1065388481, now seen corresponding path program 1 times [2022-02-18 13:55:06,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:55:06,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94521041] [2022-02-18 13:55:06,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:55:06,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:55:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:55:06,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:55:06,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:55:06,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94521041] [2022-02-18 13:55:06,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94521041] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:55:06,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:55:06,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 13:55:06,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090881646] [2022-02-18 13:55:06,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:55:06,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 13:55:06,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:55:06,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 13:55:06,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 13:55:06,618 INFO L87 Difference]: Start difference. First operand has 14391 states, 14387 states have (on average 3.4552026134704943) internal successors, (49710), 14390 states have internal predecessors, (49710), 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 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2022-02-18 13:55:06,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:55:06,868 INFO L93 Difference]: Finished difference Result 13838 states and 39138 transitions. [2022-02-18 13:55:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 13:55:06,869 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 52 [2022-02-18 13:55:06,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:55:06,951 INFO L225 Difference]: With dead ends: 13838 [2022-02-18 13:55:06,952 INFO L226 Difference]: Without dead ends: 12179 [2022-02-18 13:55:06,952 INFO L932 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 [2022-02-18 13:55:06,961 INFO L933 BasicCegarLoop]: 111 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, 111 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 [2022-02-18 13:55:06,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:55:07,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12179 states. [2022-02-18 13:55:07,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12179 to 12179. [2022-02-18 13:55:07,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12179 states, 12175 states have (on average 2.8235728952772075) internal successors, (34377), 12178 states have internal predecessors, (34377), 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) [2022-02-18 13:55:07,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12179 states to 12179 states and 34377 transitions. [2022-02-18 13:55:07,509 INFO L78 Accepts]: Start accepts. Automaton has 12179 states and 34377 transitions. Word has length 52 [2022-02-18 13:55:07,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:55:07,512 INFO L470 AbstractCegarLoop]: Abstraction has 12179 states and 34377 transitions. [2022-02-18 13:55:07,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2022-02-18 13:55:07,512 INFO L276 IsEmpty]: Start isEmpty. Operand 12179 states and 34377 transitions. [2022-02-18 13:55:07,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-18 13:55:07,513 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:55:07,513 INFO L514 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] [2022-02-18 13:55:07,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-18 13:55:07,514 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-18 13:55:07,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:55:07,514 INFO L85 PathProgramCache]: Analyzing trace with hash -731562878, now seen corresponding path program 1 times [2022-02-18 13:55:07,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:55:07,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804138847] [2022-02-18 13:55:07,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:55:07,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:55:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:55:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:55:07,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:55:07,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804138847] [2022-02-18 13:55:07,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804138847] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:55:07,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:55:07,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 13:55:07,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746580502] [2022-02-18 13:55:07,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:55:07,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 13:55:07,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:55:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 13:55:07,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 13:55:07,570 INFO L87 Difference]: Start difference. First operand 12179 states and 34377 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-02-18 13:55:07,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:55:07,686 INFO L93 Difference]: Finished difference Result 12168 states and 34366 transitions. [2022-02-18 13:55:07,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 13:55:07,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2022-02-18 13:55:07,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:55:07,820 INFO L225 Difference]: With dead ends: 12168 [2022-02-18 13:55:07,820 INFO L226 Difference]: Without dead ends: 12168 [2022-02-18 13:55:07,820 INFO L932 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 [2022-02-18 13:55:07,821 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 30 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 206 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 [2022-02-18 13:55:07,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 206 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:55:07,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12168 states. [2022-02-18 13:55:08,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12168 to 12168. [2022-02-18 13:55:08,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12168 states, 12165 states have (on average 2.824989724619811) internal successors, (34366), 12167 states have internal predecessors, (34366), 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) [2022-02-18 13:55:08,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12168 states to 12168 states and 34366 transitions. [2022-02-18 13:55:08,257 INFO L78 Accepts]: Start accepts. Automaton has 12168 states and 34366 transitions. Word has length 52 [2022-02-18 13:55:08,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:55:08,257 INFO L470 AbstractCegarLoop]: Abstraction has 12168 states and 34366 transitions. [2022-02-18 13:55:08,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-02-18 13:55:08,258 INFO L276 IsEmpty]: Start isEmpty. Operand 12168 states and 34366 transitions. [2022-02-18 13:55:08,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-02-18 13:55:08,262 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:55:08,263 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:55:08,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-18 13:55:08,266 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-18 13:55:08,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:55:08,270 INFO L85 PathProgramCache]: Analyzing trace with hash -504268380, now seen corresponding path program 1 times [2022-02-18 13:55:08,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:55:08,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787467116] [2022-02-18 13:55:08,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:55:08,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:55:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:55:08,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:55:08,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:55:08,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787467116] [2022-02-18 13:55:08,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787467116] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 13:55:08,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233711075] [2022-02-18 13:55:08,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:55:08,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 13:55:08,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 13:55:08,359 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) [2022-02-18 13:55:08,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-18 13:55:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:55:08,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-18 13:55:08,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 13:55:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:55:08,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 13:55:08,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:55:08,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233711075] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 13:55:08,808 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 13:55:08,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-18 13:55:08,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853481789] [2022-02-18 13:55:08,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 13:55:08,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-18 13:55:08,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:55:08,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-18 13:55:08,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-18 13:55:08,812 INFO L87 Difference]: Start difference. First operand 12168 states and 34366 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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) [2022-02-18 13:55:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:55:08,938 INFO L93 Difference]: Finished difference Result 6096 states and 16920 transitions. [2022-02-18 13:55:08,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:55:08,939 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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 62 [2022-02-18 13:55:08,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:55:08,959 INFO L225 Difference]: With dead ends: 6096 [2022-02-18 13:55:08,959 INFO L226 Difference]: Without dead ends: 6096 [2022-02-18 13:55:08,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-18 13:55:08,961 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 488 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:55:08,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 635 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:55:08,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2022-02-18 13:55:09,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 6096. [2022-02-18 13:55:09,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6096 states, 6095 states have (on average 2.776045939294504) internal successors, (16920), 6095 states have internal predecessors, (16920), 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) [2022-02-18 13:55:09,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6096 states to 6096 states and 16920 transitions. [2022-02-18 13:55:09,234 INFO L78 Accepts]: Start accepts. Automaton has 6096 states and 16920 transitions. Word has length 62 [2022-02-18 13:55:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:55:09,234 INFO L470 AbstractCegarLoop]: Abstraction has 6096 states and 16920 transitions. [2022-02-18 13:55:09,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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) [2022-02-18 13:55:09,234 INFO L276 IsEmpty]: Start isEmpty. Operand 6096 states and 16920 transitions. [2022-02-18 13:55:09,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-18 13:55:09,236 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:55:09,236 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:55:09,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-18 13:55:09,452 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 [2022-02-18 13:55:09,452 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-18 13:55:09,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:55:09,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1440832547, now seen corresponding path program 1 times [2022-02-18 13:55:09,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:55:09,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030325472] [2022-02-18 13:55:09,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:55:09,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:55:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-18 13:55:09,479 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-18 13:55:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-18 13:55:09,519 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-18 13:55:09,520 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-18 13:55:09,520 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-18 13:55:09,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-18 13:55:09,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-18 13:55:09,521 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-18 13:55:09,521 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-18 13:55:09,521 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-02-18 13:55:09,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,540 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,541 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,541 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,541 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,545 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,545 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,546 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,546 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,546 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,546 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,546 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,546 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,546 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,546 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,549 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,549 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,549 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,549 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,549 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,549 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,550 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,550 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,550 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,550 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,550 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,550 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,550 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,550 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,550 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,551 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,551 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,551 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,551 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,551 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,551 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,554 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,554 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,554 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,554 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,554 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,554 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,554 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,555 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,555 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,556 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,556 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,557 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,557 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,558 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,558 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:55:09,560 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-18 13:55:09,561 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 13:55:09,561 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, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 13:55:09,561 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-18 13:55:09,563 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 159 places, 179 transitions, 388 flow [2022-02-18 13:55:20,926 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 330204 states, 330199 states have (on average 4.677282487227399) internal successors, (1544434), 330203 states have internal predecessors, (1544434), 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) [2022-02-18 13:55:21,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 330204 states, 330199 states have (on average 4.677282487227399) internal successors, (1544434), 330203 states have internal predecessors, (1544434), 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) [2022-02-18 13:55:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-18 13:55:21,623 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:55:21,623 INFO L514 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] [2022-02-18 13:55:21,623 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-18 13:55:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:55:21,624 INFO L85 PathProgramCache]: Analyzing trace with hash -688367743, now seen corresponding path program 1 times [2022-02-18 13:55:21,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:55:21,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746213901] [2022-02-18 13:55:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:55:21,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:55:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:55:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:55:21,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:55:21,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746213901] [2022-02-18 13:55:21,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746213901] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:55:21,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:55:21,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 13:55:21,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744775215] [2022-02-18 13:55:21,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:55:21,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 13:55:21,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:55:21,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 13:55:21,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 13:55:22,345 INFO L87 Difference]: Start difference. First operand has 330204 states, 330199 states have (on average 4.677282487227399) internal successors, (1544434), 330203 states have internal predecessors, (1544434), 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 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2022-02-18 13:55:28,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:55:28,171 INFO L93 Difference]: Finished difference Result 317484 states and 1202984 transitions. [2022-02-18 13:55:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 13:55:28,172 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 52 [2022-02-18 13:55:28,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:55:31,302 INFO L225 Difference]: With dead ends: 317484 [2022-02-18 13:55:31,302 INFO L226 Difference]: Without dead ends: 279324 [2022-02-18 13:55:31,303 INFO L932 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 [2022-02-18 13:55:31,303 INFO L933 BasicCegarLoop]: 133 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, 133 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 [2022-02-18 13:55:31,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:55:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279324 states. [2022-02-18 13:55:44,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279324 to 279324. [2022-02-18 13:55:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279324 states, 279319 states have (on average 3.7841321213379686) internal successors, (1056980), 279323 states have internal predecessors, (1056980), 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) [2022-02-18 13:55:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279324 states to 279324 states and 1056980 transitions. [2022-02-18 13:55:48,021 INFO L78 Accepts]: Start accepts. Automaton has 279324 states and 1056980 transitions. Word has length 52 [2022-02-18 13:55:48,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:55:48,021 INFO L470 AbstractCegarLoop]: Abstraction has 279324 states and 1056980 transitions. [2022-02-18 13:55:48,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2022-02-18 13:55:48,021 INFO L276 IsEmpty]: Start isEmpty. Operand 279324 states and 1056980 transitions. [2022-02-18 13:55:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-18 13:55:48,022 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:55:48,022 INFO L514 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] [2022-02-18 13:55:48,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-18 13:55:48,022 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-18 13:55:48,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:55:48,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1809648194, now seen corresponding path program 1 times [2022-02-18 13:55:48,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:55:48,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166854548] [2022-02-18 13:55:48,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:55:48,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:55:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:55:48,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:55:48,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:55:48,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166854548] [2022-02-18 13:55:48,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166854548] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:55:48,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:55:48,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 13:55:48,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716105727] [2022-02-18 13:55:48,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:55:48,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 13:55:48,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:55:48,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 13:55:48,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 13:55:48,077 INFO L87 Difference]: Start difference. First operand 279324 states and 1056980 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-02-18 13:55:53,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:55:53,318 INFO L93 Difference]: Finished difference Result 279313 states and 1056969 transitions. [2022-02-18 13:55:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 13:55:53,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2022-02-18 13:55:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:55:58,773 INFO L225 Difference]: With dead ends: 279313 [2022-02-18 13:55:58,774 INFO L226 Difference]: Without dead ends: 279313 [2022-02-18 13:55:58,774 INFO L932 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 [2022-02-18 13:55:58,775 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 30 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:55:58,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 250 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:56:00,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279313 states. [2022-02-18 13:56:13,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279313 to 279313. [2022-02-18 13:56:14,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279313 states, 279309 states have (on average 3.784228220358098) internal successors, (1056969), 279312 states have internal predecessors, (1056969), 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) [2022-02-18 13:56:18,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279313 states to 279313 states and 1056969 transitions. [2022-02-18 13:56:18,419 INFO L78 Accepts]: Start accepts. Automaton has 279313 states and 1056969 transitions. Word has length 52 [2022-02-18 13:56:18,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:56:18,420 INFO L470 AbstractCegarLoop]: Abstraction has 279313 states and 1056969 transitions. [2022-02-18 13:56:18,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-02-18 13:56:18,420 INFO L276 IsEmpty]: Start isEmpty. Operand 279313 states and 1056969 transitions. [2022-02-18 13:56:18,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-02-18 13:56:18,421 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:56:18,421 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:56:18,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-18 13:56:18,422 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-18 13:56:18,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:56:18,422 INFO L85 PathProgramCache]: Analyzing trace with hash -936714400, now seen corresponding path program 1 times [2022-02-18 13:56:18,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:56:18,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177155831] [2022-02-18 13:56:18,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:56:18,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:56:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:56:18,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:56:18,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:56:18,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177155831] [2022-02-18 13:56:18,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177155831] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 13:56:18,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007532490] [2022-02-18 13:56:18,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:56:18,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 13:56:18,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 13:56:18,548 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 13:56:18,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 13:56:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:56:18,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-18 13:56:18,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 13:56:18,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:56:18,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 13:56:18,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:56:18,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007532490] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 13:56:18,960 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 13:56:18,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-18 13:56:18,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223147166] [2022-02-18 13:56:18,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 13:56:18,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-18 13:56:18,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:56:18,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-18 13:56:18,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-18 13:56:18,961 INFO L87 Difference]: Start difference. First operand 279313 states and 1056969 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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) [2022-02-18 13:56:24,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:56:24,565 INFO L93 Difference]: Finished difference Result 273241 states and 1039523 transitions. [2022-02-18 13:56:24,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:56:24,569 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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 62 [2022-02-18 13:56:24,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:56:29,450 INFO L225 Difference]: With dead ends: 273241 [2022-02-18 13:56:29,451 INFO L226 Difference]: Without dead ends: 273241 [2022-02-18 13:56:29,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-18 13:56:29,451 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 470 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:56:29,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [470 Valid, 818 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:56:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273241 states.