/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-POR-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_good-30.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-11 05:04:56,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-11 05:04:56,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-11 05:04:56,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-11 05:04:56,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-11 05:04:56,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-11 05:04:56,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-11 05:04:56,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-11 05:04:56,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-11 05:04:56,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-11 05:04:56,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-11 05:04:56,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-11 05:04:56,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-11 05:04:56,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-11 05:04:56,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-11 05:04:56,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-11 05:04:56,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-11 05:04:56,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-11 05:04:56,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-11 05:04:56,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-11 05:04:56,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-11 05:04:56,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-11 05:04:56,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-11 05:04:56,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-11 05:04:56,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-11 05:04:56,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-11 05:04:56,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-11 05:04:56,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-11 05:04:56,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-11 05:04:56,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-11 05:04:56,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-11 05:04:56,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-11 05:04:56,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-11 05:04:56,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-11 05:04:56,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-11 05:04:56,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-11 05:04:56,659 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-POR-NewStatesSleepPersistent-NoLbe.epf [2022-02-11 05:04:56,685 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-11 05:04:56,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-11 05:04:56,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-11 05:04:56,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-11 05:04:56,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-11 05:04:56,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-11 05:04:56,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-11 05:04:56,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-11 05:04:56,687 INFO L138 SettingsManager]: * Use SBE=true [2022-02-11 05:04:56,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-11 05:04:56,688 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-11 05:04:56,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-11 05:04:56,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-11 05:04:56,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-11 05:04:56,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-11 05:04:56,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-11 05:04:56,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-11 05:04:56,689 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-11 05:04:56,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-11 05:04:56,689 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-11 05:04:56,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-11 05:04:56,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-11 05:04:56,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-11 05:04:56,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-11 05:04:56,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-11 05:04:56,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 05:04:56,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-11 05:04:56,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-11 05:04:56,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-11 05:04:56,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-11 05:04:56,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-11 05:04:56,690 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-11 05:04:56,690 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-11 05:04:56,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-11 05:04:56,690 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-11 05:04:56,690 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2022-02-11 05:04:56,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-11 05:04:56,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-11 05:04:56,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-11 05:04:56,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-11 05:04:56,909 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-11 05:04:56,909 INFO L275 PluginConnector]: CDTParser initialized [2022-02-11 05:04:56,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_good-30.i [2022-02-11 05:04:56,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbbbdfd2b/bafd8e264dea4165a39b4cb26373a176/FLAGddf5fcfee [2022-02-11 05:04:57,363 INFO L306 CDTParser]: Found 1 translation units. [2022-02-11 05:04:57,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_good-30.i [2022-02-11 05:04:57,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbbbdfd2b/bafd8e264dea4165a39b4cb26373a176/FLAGddf5fcfee [2022-02-11 05:04:57,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbbbdfd2b/bafd8e264dea4165a39b4cb26373a176 [2022-02-11 05:04:57,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-11 05:04:57,707 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-11 05:04:57,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-11 05:04:57,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-11 05:04:57,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-11 05:04:57,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.02 05:04:57" (1/1) ... [2022-02-11 05:04:57,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@688217b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:57, skipping insertion in model container [2022-02-11 05:04:57,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.02 05:04:57" (1/1) ... [2022-02-11 05:04:57,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-11 05:04:57,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-11 05:04:57,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_good-30.i[30195,30208] [2022-02-11 05:04:57,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-11 05:04:57,992 INFO L203 MainTranslator]: Completed pre-run [2022-02-11 05:04:58,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_good-30.i[30195,30208] [2022-02-11 05:04:58,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-11 05:04:58,064 INFO L208 MainTranslator]: Completed translation [2022-02-11 05:04:58,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58 WrapperNode [2022-02-11 05:04:58,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-11 05:04:58,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-11 05:04:58,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-11 05:04:58,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-11 05:04:58,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58" (1/1) ... [2022-02-11 05:04:58,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58" (1/1) ... [2022-02-11 05:04:58,113 INFO L137 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2022-02-11 05:04:58,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-11 05:04:58,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-11 05:04:58,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-11 05:04:58,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-11 05:04:58,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58" (1/1) ... [2022-02-11 05:04:58,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58" (1/1) ... [2022-02-11 05:04:58,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58" (1/1) ... [2022-02-11 05:04:58,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58" (1/1) ... [2022-02-11 05:04:58,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58" (1/1) ... [2022-02-11 05:04:58,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58" (1/1) ... [2022-02-11 05:04:58,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58" (1/1) ... [2022-02-11 05:04:58,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-11 05:04:58,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-11 05:04:58,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-11 05:04:58,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-11 05:04:58,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58" (1/1) ... [2022-02-11 05:04:58,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 05:04:58,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:04:58,187 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) [2022-02-11 05:04:58,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-11 05:04:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-11 05:04:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-02-11 05:04:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-02-11 05:04:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-11 05:04:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-11 05:04:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-11 05:04:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-11 05:04:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-11 05:04:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-02-11 05:04:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-02-11 05:04:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-11 05:04:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-11 05:04:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-11 05:04:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-11 05:04:58,235 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-11 05:04:58,342 INFO L234 CfgBuilder]: Building ICFG [2022-02-11 05:04:58,343 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-11 05:04:58,451 INFO L275 CfgBuilder]: Performing block encoding [2022-02-11 05:04:58,456 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-11 05:04:58,456 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-02-11 05:04:58,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 05:04:58 BoogieIcfgContainer [2022-02-11 05:04:58,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-11 05:04:58,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-11 05:04:58,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-11 05:04:58,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-11 05:04:58,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.02 05:04:57" (1/3) ... [2022-02-11 05:04:58,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5042c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 05:04:58, skipping insertion in model container [2022-02-11 05:04:58,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:04:58" (2/3) ... [2022-02-11 05:04:58,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5042c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 05:04:58, skipping insertion in model container [2022-02-11 05:04:58,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 05:04:58" (3/3) ... [2022-02-11 05:04:58,464 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_good-30.i [2022-02-11 05:04:58,467 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-11 05:04:58,467 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-11 05:04:58,467 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-11 05:04:58,467 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-11 05:04:58,487 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,487 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,487 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,487 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,488 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,488 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,488 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,488 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,488 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,488 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,488 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,488 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,489 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,489 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,489 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,489 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,489 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,489 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,489 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,489 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,490 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,490 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,490 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,490 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,492 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,492 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,492 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,493 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,494 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,494 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,494 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,494 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:04:58,498 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-11 05:04:58,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 05:04:58,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:04:58,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 05:04:58,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-11 05:04:58,560 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2022-02-11 05:04:58,567 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-11 05:04:58,567 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-11 05:04:58,689 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-11 05:04:58,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:04:58,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1384871672, now seen corresponding path program 1 times [2022-02-11 05:04:58,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:04:58,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075493311] [2022-02-11 05:04:58,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:04:58,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:04:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:04:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:04:58,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:04:58,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075493311] [2022-02-11 05:04:58,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075493311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:04:58,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:04:58,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 05:04:58,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199729858] [2022-02-11 05:04:58,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:04:58,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 05:04:58,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:04:58,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 05:04:58,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 05:04:58,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:58,897 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:04:58,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2022-02-11 05:04:58,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,037 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-11 05:04:59,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-11 05:04:59,047 INFO L733 BasicCegarLoop]: Path program histogram: [1] [2022-02-11 05:04:59,048 INFO L313 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was SAFE (1/2) [2022-02-11 05:04:59,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 05:04:59,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:04:59,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 05:04:59,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-02-11 05:04:59,075 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 05:04:59,076 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-11 05:04:59,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-11 05:04:59,105 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:04:59,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:04:59,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1054879788, now seen corresponding path program 1 times [2022-02-11 05:04:59,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:04:59,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514595391] [2022-02-11 05:04:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:04:59,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:04:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:04:59,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-11 05:04:59,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:04:59,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514595391] [2022-02-11 05:04:59,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514595391] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:04:59,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:04:59,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 05:04:59,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711789470] [2022-02-11 05:04:59,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:04:59,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 05:04:59,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:04:59,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 05:04:59,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 05:04:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,158 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:04:59,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 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) [2022-02-11 05:04:59,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-11 05:04:59,162 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:04:59,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:04:59,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1886777811, now seen corresponding path program 1 times [2022-02-11 05:04:59,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:04:59,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955388547] [2022-02-11 05:04:59,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:04:59,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:04:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:04:59,214 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-11 05:04:59,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:04:59,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955388547] [2022-02-11 05:04:59,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955388547] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:04:59,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:04:59,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-11 05:04:59,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77636689] [2022-02-11 05:04:59,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:04:59,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-11 05:04:59,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:04:59,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-11 05:04:59,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-11 05:04:59,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,217 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:04:59,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-02-11 05:04:59,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 05:04:59,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-11 05:04:59,248 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:04:59,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:04:59,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1826993619, now seen corresponding path program 1 times [2022-02-11 05:04:59,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:04:59,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950692456] [2022-02-11 05:04:59,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:04:59,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:04:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:04:59,328 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-11 05:04:59,329 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:04:59,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950692456] [2022-02-11 05:04:59,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950692456] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 05:04:59,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240354877] [2022-02-11 05:04:59,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:04:59,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:04:59,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:04:59,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 05:04:59,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-11 05:04:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:04:59,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-11 05:04:59,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 05:04:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-11 05:04:59,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 05:04:59,768 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-11 05:04:59,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240354877] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 05:04:59,769 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 05:04:59,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-11 05:04:59,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675112577] [2022-02-11 05:04:59,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 05:04:59,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-11 05:04:59,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:04:59,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-11 05:04:59,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-11 05:04:59,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,770 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:04:59,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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) [2022-02-11 05:04:59,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 05:04:59,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:04:59,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 05:04:59,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-11 05:04:59,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-11 05:05:00,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:05:00,046 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:05:00,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:00,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1644059886, now seen corresponding path program 1 times [2022-02-11 05:05:00,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:00,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552057298] [2022-02-11 05:05:00,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:00,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 05:05:00,079 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-11 05:05:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 05:05:00,113 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-11 05:05:00,113 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-11 05:05:00,113 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-02-11 05:05:00,113 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-11 05:05:00,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-11 05:05:00,118 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-11 05:05:00,118 INFO L313 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2022-02-11 05:05:00,119 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-11 05:05:00,119 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-11 05:05:00,133 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,134 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,134 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,134 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,134 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,134 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,134 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,134 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,134 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,134 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,135 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,135 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,135 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,135 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,135 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,136 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,136 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,136 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,136 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,136 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,137 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,137 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,138 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,140 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,141 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,141 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,141 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,141 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,141 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,141 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,141 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,141 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,141 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,141 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,142 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,143 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,143 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,143 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,143 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,144 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,144 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,144 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,144 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,144 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,144 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,144 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,144 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,145 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,145 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,145 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,145 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:00,148 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-02-11 05:05:00,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 05:05:00,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:05:00,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 05:05:00,187 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of2ForFork1 ======== [2022-02-11 05:05:00,187 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-11 05:05:00,187 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-11 05:05:00,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-02-11 05:05:00,231 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-11 05:05:00,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:00,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1254997903, now seen corresponding path program 1 times [2022-02-11 05:05:00,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:00,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790951064] [2022-02-11 05:05:00,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:00,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:05:00,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:05:00,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790951064] [2022-02-11 05:05:00,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790951064] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:05:00,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:05:00,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 05:05:00,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683267492] [2022-02-11 05:05:00,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:05:00,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 05:05:00,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:05:00,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 05:05:00,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 05:05:00,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:00,248 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:05:00,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2022-02-11 05:05:00,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:00,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:00,440 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-11 05:05:00,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-11 05:05:00,444 INFO L733 BasicCegarLoop]: Path program histogram: [1] [2022-02-11 05:05:00,444 INFO L313 ceAbstractionStarter]: Result for error location checkThreadThread1of2ForFork1 was SAFE (1/3) [2022-02-11 05:05:00,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 05:05:00,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:05:00,446 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 05:05:00,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-02-11 05:05:00,473 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread2of2ForFork1 ======== [2022-02-11 05:05:00,473 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-11 05:05:00,473 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-11 05:05:00,520 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-11 05:05:00,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:00,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1706505338, now seen corresponding path program 1 times [2022-02-11 05:05:00,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:00,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067625253] [2022-02-11 05:05:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:00,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-11 05:05:00,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:05:00,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067625253] [2022-02-11 05:05:00,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067625253] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:05:00,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:05:00,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 05:05:00,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653123516] [2022-02-11 05:05:00,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:05:00,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 05:05:00,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:05:00,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 05:05:00,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 05:05:00,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:00,558 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:05:00,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2022-02-11 05:05:00,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:00,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:00,977 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-11 05:05:00,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-11 05:05:00,979 INFO L733 BasicCegarLoop]: Path program histogram: [1] [2022-02-11 05:05:00,979 INFO L313 ceAbstractionStarter]: Result for error location checkThreadThread2of2ForFork1 was SAFE (2/3) [2022-02-11 05:05:00,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 05:05:00,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:05:00,996 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 05:05:01,009 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 05:05:01,009 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-11 05:05:01,009 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-11 05:05:01,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2022-02-11 05:05:01,059 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:05:01,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:01,059 INFO L85 PathProgramCache]: Analyzing trace with hash -912066935, now seen corresponding path program 1 times [2022-02-11 05:05:01,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:01,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198908798] [2022-02-11 05:05:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:01,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-11 05:05:01,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:05:01,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198908798] [2022-02-11 05:05:01,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198908798] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:05:01,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:05:01,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 05:05:01,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609633698] [2022-02-11 05:05:01,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:05:01,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 05:05:01,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:05:01,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 05:05:01,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 05:05:01,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,085 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:05:01,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2022-02-11 05:05:01,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-11 05:05:01,091 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:05:01,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:01,091 INFO L85 PathProgramCache]: Analyzing trace with hash 49547082, now seen corresponding path program 1 times [2022-02-11 05:05:01,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:01,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021097217] [2022-02-11 05:05:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:01,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-11 05:05:01,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:05:01,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021097217] [2022-02-11 05:05:01,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021097217] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:05:01,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:05:01,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-11 05:05:01,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409731637] [2022-02-11 05:05:01,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:05:01,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-11 05:05:01,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:05:01,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-11 05:05:01,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-11 05:05:01,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,120 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:05:01,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2022-02-11 05:05:01,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 05:05:01,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-11 05:05:01,146 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:05:01,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:01,146 INFO L85 PathProgramCache]: Analyzing trace with hash -82423811, now seen corresponding path program 1 times [2022-02-11 05:05:01,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:01,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165291798] [2022-02-11 05:05:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:01,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:01,177 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-11 05:05:01,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:05:01,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165291798] [2022-02-11 05:05:01,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165291798] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 05:05:01,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869775421] [2022-02-11 05:05:01,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:01,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:05:01,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:05:01,196 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 05:05:01,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-11 05:05:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:01,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-11 05:05:01,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 05:05:01,376 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-11 05:05:01,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 05:05:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-11 05:05:01,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869775421] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 05:05:01,456 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 05:05:01,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-11 05:05:01,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273275026] [2022-02-11 05:05:01,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 05:05:01,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-11 05:05:01,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:05:01,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-11 05:05:01,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-11 05:05:01,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,457 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:05:01,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 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) [2022-02-11 05:05:01,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 05:05:01,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 05:05:01,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 05:05:01,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-11 05:05:01,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:05:01,706 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:05:01,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:01,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1114336808, now seen corresponding path program 1 times [2022-02-11 05:05:01,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:01,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342535596] [2022-02-11 05:05:01,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:01,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 05:05:01,721 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-11 05:05:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 05:05:01,746 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-11 05:05:01,746 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-11 05:05:01,746 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-02-11 05:05:01,746 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-11 05:05:01,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-11 05:05:01,764 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-11 05:05:01,764 INFO L313 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/3) [2022-02-11 05:05:01,764 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-11 05:05:01,764 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-02-11 05:05:01,789 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,789 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,789 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,789 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,789 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,789 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,789 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,789 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,790 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,791 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,792 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,793 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,794 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,795 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,795 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,795 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,795 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,795 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,795 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,795 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,795 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,796 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,796 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,796 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,796 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,796 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,796 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,796 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,796 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,797 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,797 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,797 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,797 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,797 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,797 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,797 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,797 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:01,800 INFO L148 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-02-11 05:05:01,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 05:05:01,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:05:01,802 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 05:05:01,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2022-02-11 05:05:01,805 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 05:05:01,805 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-11 05:05:01,806 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-11 05:05:01,846 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:05:01,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:01,846 INFO L85 PathProgramCache]: Analyzing trace with hash -504190410, now seen corresponding path program 1 times [2022-02-11 05:05:01,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:01,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322102342] [2022-02-11 05:05:01,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:01,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:01,864 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-11 05:05:01,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:05:01,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322102342] [2022-02-11 05:05:01,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322102342] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:05:01,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:05:01,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 05:05:01,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114189609] [2022-02-11 05:05:01,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:05:01,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 05:05:01,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:05:01,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 05:05:01,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 05:05:01,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,865 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:05:01,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 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) [2022-02-11 05:05:01,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-11 05:05:01,869 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:05:01,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:01,869 INFO L85 PathProgramCache]: Analyzing trace with hash -174424649, now seen corresponding path program 1 times [2022-02-11 05:05:01,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:01,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523681846] [2022-02-11 05:05:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:01,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:01,886 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-11 05:05:01,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:05:01,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523681846] [2022-02-11 05:05:01,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523681846] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:05:01,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:05:01,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-11 05:05:01,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443921759] [2022-02-11 05:05:01,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:05:01,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-11 05:05:01,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:05:01,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-11 05:05:01,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-11 05:05:01,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,888 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:05:01,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-02-11 05:05:01,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:01,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 05:05:01,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-11 05:05:01,922 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:05:01,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:01,922 INFO L85 PathProgramCache]: Analyzing trace with hash -505698537, now seen corresponding path program 1 times [2022-02-11 05:05:01,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:01,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229814604] [2022-02-11 05:05:01,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:01,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-11 05:05:01,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:05:01,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229814604] [2022-02-11 05:05:01,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229814604] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 05:05:01,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725310807] [2022-02-11 05:05:01,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:01,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:05:01,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:05:01,952 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 05:05:01,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-11 05:05:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:02,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-11 05:05:02,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 05:05:02,136 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-11 05:05:02,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 05:05:02,222 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-11 05:05:02,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725310807] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 05:05:02,222 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 05:05:02,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-11 05:05:02,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541461351] [2022-02-11 05:05:02,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 05:05:02,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-11 05:05:02,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:05:02,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-11 05:05:02,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-11 05:05:02,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:02,224 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:05:02,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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) [2022-02-11 05:05:02,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:02,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 05:05:02,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 05:05:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 05:05:02,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-11 05:05:02,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-11 05:05:02,511 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:05:02,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:02,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2037178586, now seen corresponding path program 1 times [2022-02-11 05:05:02,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:02,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95950073] [2022-02-11 05:05:02,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:02,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:02,580 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-11 05:05:02,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:05:02,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95950073] [2022-02-11 05:05:02,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95950073] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 05:05:02,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926971379] [2022-02-11 05:05:02,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:02,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:05:02,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:05:02,590 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 05:05:02,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-11 05:05:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:02,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-11 05:05:02,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 05:05:02,803 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-11 05:05:02,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 05:05:02,975 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-11 05:05:02,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926971379] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 05:05:02,976 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 05:05:02,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-02-11 05:05:02,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870569423] [2022-02-11 05:05:02,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 05:05:02,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-11 05:05:02,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:05:02,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-11 05:05:02,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-02-11 05:05:02,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:02,979 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:05:02,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 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) [2022-02-11 05:05:02,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:02,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 05:05:02,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 05:05:02,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 05:05:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 05:05:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-11 05:05:03,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-11 05:05:03,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-11 05:05:03,270 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 05:05:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:03,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1345279344, now seen corresponding path program 1 times [2022-02-11 05:05:03,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:03,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830843568] [2022-02-11 05:05:03,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:03,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 05:05:03,282 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-11 05:05:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 05:05:03,294 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-11 05:05:03,294 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-11 05:05:03,294 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-11 05:05:03,294 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 2 remaining) [2022-02-11 05:05:03,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-11 05:05:03,295 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-02-11 05:05:03,295 INFO L313 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/4) [2022-02-11 05:05:03,296 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-11 05:05:03,296 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-02-11 05:05:03,304 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,305 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,306 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,307 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,308 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,309 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,310 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,311 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,312 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,312 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,312 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,312 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,312 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,312 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,312 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,313 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,313 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,313 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,313 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,313 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,313 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,313 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,313 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,313 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,314 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,314 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,314 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,314 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,314 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,314 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,314 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,314 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,315 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,315 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,315 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,315 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,315 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,315 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,315 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,315 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:05:03,318 INFO L148 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2022-02-11 05:05:03,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 05:05:03,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:05:03,320 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 05:05:03,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2022-02-11 05:05:03,337 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread4of4ForFork1 ======== [2022-02-11 05:05:03,337 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-11 05:05:03,337 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-11 05:05:03,394 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-11 05:05:03,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:05:03,395 INFO L85 PathProgramCache]: Analyzing trace with hash 876400371, now seen corresponding path program 1 times [2022-02-11 05:05:03,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:05:03,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014302785] [2022-02-11 05:05:03,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:05:03,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:05:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:05:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-11 05:05:03,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:05:03,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014302785] [2022-02-11 05:05:03,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014302785] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:05:03,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:05:03,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 05:05:03,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499456879] [2022-02-11 05:05:03,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:05:03,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 05:05:03,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:05:03,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 05:05:03,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 05:05:03,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:05:03,409 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:05:03,409 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) [2022-02-11 05:05:03,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.