/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-NewStatesSleepPersistentFixedOrder-NoLbe-varabs.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_good-50.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-11 10:53:22,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-11 10:53:22,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-11 10:53:22,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-11 10:53:22,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-11 10:53:22,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-11 10:53:22,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-11 10:53:22,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-11 10:53:22,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-11 10:53:22,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-11 10:53:22,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-11 10:53:22,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-11 10:53:22,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-11 10:53:22,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-11 10:53:22,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-11 10:53:22,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-11 10:53:22,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-11 10:53:22,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-11 10:53:22,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-11 10:53:22,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-11 10:53:22,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-11 10:53:22,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-11 10:53:22,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-11 10:53:22,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-11 10:53:22,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-11 10:53:22,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-11 10:53:22,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-11 10:53:22,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-11 10:53:22,486 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-NewStatesSleepPersistentFixedOrder-NoLbe-varabs.epf [2022-02-11 10:53:22,514 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-11 10:53:22,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-11 10:53:22,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-11 10:53:22,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-11 10:53:22,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-11 10:53:22,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-11 10:53:22,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-11 10:53:22,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-11 10:53:22,516 INFO L138 SettingsManager]: * Use SBE=true [2022-02-11 10:53:22,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-11 10:53:22,531 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-11 10:53:22,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-11 10:53:22,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-11 10:53:22,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-11 10:53:22,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-11 10:53:22,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-11 10:53:22,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-11 10:53:22,532 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-11 10:53:22,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-11 10:53:22,532 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-11 10:53:22,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-11 10:53:22,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-11 10:53:22,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-11 10:53:22,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-11 10:53:22,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-11 10:53:22,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 10:53:22,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-11 10:53:22,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-11 10:53:22,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-11 10:53:22,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-11 10:53:22,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-11 10:53:22,533 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-11 10:53:22,533 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-02-11 10:53:22,533 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-11 10:53:22,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-11 10:53:22,533 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-11 10:53:22,533 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-11 10:53:22,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-11 10:53:22,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-11 10:53:22,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-11 10:53:22,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-11 10:53:22,869 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-11 10:53:22,869 INFO L275 PluginConnector]: CDTParser initialized [2022-02-11 10:53:22,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_good-50.i [2022-02-11 10:53:22,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e6c1b64/25e094cd61fe477f9eadcccc68ed0154/FLAG4eebcbcdb [2022-02-11 10:53:23,547 INFO L306 CDTParser]: Found 1 translation units. [2022-02-11 10:53:23,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_good-50.i [2022-02-11 10:53:23,558 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e6c1b64/25e094cd61fe477f9eadcccc68ed0154/FLAG4eebcbcdb [2022-02-11 10:53:23,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e6c1b64/25e094cd61fe477f9eadcccc68ed0154 [2022-02-11 10:53:23,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-11 10:53:23,931 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-11 10:53:23,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-11 10:53:23,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-11 10:53:23,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-11 10:53:23,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.02 10:53:23" (1/1) ... [2022-02-11 10:53:23,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57561af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:23, skipping insertion in model container [2022-02-11 10:53:23,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.02 10:53:23" (1/1) ... [2022-02-11 10:53:23,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-11 10:53:23,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-11 10:53:24,260 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-50.i[30195,30208] [2022-02-11 10:53:24,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-11 10:53:24,281 INFO L203 MainTranslator]: Completed pre-run [2022-02-11 10:53:24,314 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-50.i[30195,30208] [2022-02-11 10:53:24,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-11 10:53:24,347 INFO L208 MainTranslator]: Completed translation [2022-02-11 10:53:24,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24 WrapperNode [2022-02-11 10:53:24,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-11 10:53:24,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-11 10:53:24,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-11 10:53:24,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-11 10:53:24,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24" (1/1) ... [2022-02-11 10:53:24,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24" (1/1) ... [2022-02-11 10:53:24,384 INFO L137 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2022-02-11 10:53:24,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-11 10:53:24,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-11 10:53:24,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-11 10:53:24,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-11 10:53:24,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24" (1/1) ... [2022-02-11 10:53:24,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24" (1/1) ... [2022-02-11 10:53:24,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24" (1/1) ... [2022-02-11 10:53:24,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24" (1/1) ... [2022-02-11 10:53:24,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24" (1/1) ... [2022-02-11 10:53:24,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24" (1/1) ... [2022-02-11 10:53:24,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24" (1/1) ... [2022-02-11 10:53:24,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-11 10:53:24,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-11 10:53:24,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-11 10:53:24,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-11 10:53:24,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24" (1/1) ... [2022-02-11 10:53:24,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 10:53:24,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:24,468 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 10:53:24,487 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 10:53:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-11 10:53:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-02-11 10:53:24,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-02-11 10:53:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-11 10:53:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-11 10:53:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-11 10:53:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-11 10:53:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-11 10:53:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-02-11 10:53:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-02-11 10:53:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-11 10:53:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-11 10:53:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-11 10:53:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-11 10:53:24,505 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 10:53:24,631 INFO L234 CfgBuilder]: Building ICFG [2022-02-11 10:53:24,632 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-11 10:53:24,738 INFO L275 CfgBuilder]: Performing block encoding [2022-02-11 10:53:24,743 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-11 10:53:24,743 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-02-11 10:53:24,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 10:53:24 BoogieIcfgContainer [2022-02-11 10:53:24,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-11 10:53:24,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-11 10:53:24,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-11 10:53:24,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-11 10:53:24,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.02 10:53:23" (1/3) ... [2022-02-11 10:53:24,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555eb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 10:53:24, skipping insertion in model container [2022-02-11 10:53:24,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 10:53:24" (2/3) ... [2022-02-11 10:53:24,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555eb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 10:53:24, skipping insertion in model container [2022-02-11 10:53:24,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 10:53:24" (3/3) ... [2022-02-11 10:53:24,750 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_good-50.i [2022-02-11 10:53:24,753 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-11 10:53:24,753 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-11 10:53:24,754 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-11 10:53:24,754 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-11 10:53:24,772 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,773 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,773 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,773 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,773 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,773 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,773 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,773 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,774 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,774 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,774 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,774 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,774 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,774 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,774 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,775 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,775 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,775 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,775 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,775 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,775 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,775 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,775 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,776 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,778 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,778 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,778 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,778 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,780 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,780 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,780 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,780 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:24,783 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-11 10:53:24,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 10:53:24,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:24,817 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 10:53:24,836 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 10:53:24,859 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2022-02-11 10:53:24,865 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 10:53:24,865 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-11 10:53:25,017 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-11 10:53:25,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:25,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1384871672, now seen corresponding path program 1 times [2022-02-11 10:53:25,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:25,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666379492] [2022-02-11 10:53:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:25,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:25,216 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 10:53:25,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:25,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666379492] [2022-02-11 10:53:25,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666379492] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 10:53:25,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 10:53:25,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 10:53:25,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269908993] [2022-02-11 10:53:25,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 10:53:25,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 10:53:25,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:25,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 10:53:25,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 10:53:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:25,246 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:25,246 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 10:53:25,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:25,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:25,471 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-11 10:53:25,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: ResultService,SelfDestructingSolverStorable0 [2022-02-11 10:53:25,479 INFO L733 BasicCegarLoop]: Path program histogram: [1] [2022-02-11 10:53:25,481 INFO L313 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was SAFE (1/2) [2022-02-11 10:53:25,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 10:53:25,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:25,500 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 10:53:25,501 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 10:53:25,534 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 10:53:25,535 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 10:53:25,535 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-11 10:53:25,590 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:25,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:25,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1054879788, now seen corresponding path program 1 times [2022-02-11 10:53:25,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:25,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661281879] [2022-02-11 10:53:25,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:25,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:25,660 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 10:53:25,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:25,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661281879] [2022-02-11 10:53:25,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661281879] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 10:53:25,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 10:53:25,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 10:53:25,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208435663] [2022-02-11 10:53:25,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 10:53:25,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 10:53:25,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:25,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 10:53:25,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 10:53:25,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:25,663 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:25,664 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 10:53:25,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:25,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-11 10:53:25,670 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:25,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1886777811, now seen corresponding path program 1 times [2022-02-11 10:53:25,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:25,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288588864] [2022-02-11 10:53:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:25,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:25,729 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 10:53:25,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:25,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288588864] [2022-02-11 10:53:25,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288588864] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 10:53:25,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 10:53:25,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-11 10:53:25,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597687328] [2022-02-11 10:53:25,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 10:53:25,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-11 10:53:25,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:25,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-11 10:53:25,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-11 10:53:25,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:25,732 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:25,733 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 10:53:25,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:25,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:25,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:25,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 10:53:25,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-11 10:53:25,810 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:25,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:25,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1826993619, now seen corresponding path program 1 times [2022-02-11 10:53:25,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:25,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132067059] [2022-02-11 10:53:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:25,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:25,867 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 10:53:25,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:25,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132067059] [2022-02-11 10:53:25,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132067059] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 10:53:25,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417824970] [2022-02-11 10:53:25,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:25,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 10:53:25,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:25,885 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 10:53:25,886 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 10:53:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:25,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-11 10:53:25,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 10:53:26,084 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 10:53:26,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 10:53:26,174 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 10:53:26,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417824970] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 10:53:26,174 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 10:53:26,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-11 10:53:26,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295848260] [2022-02-11 10:53:26,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 10:53:26,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-11 10:53:26,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:26,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-11 10:53:26,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-11 10:53:26,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:26,177 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:26,177 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 10:53:26,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:26,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 10:53:26,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 10:53:26,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-11 10:53:26,245 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 10:53:26,445 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 10:53:26,445 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:26,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:26,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1644059886, now seen corresponding path program 1 times [2022-02-11 10:53:26,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:26,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392117937] [2022-02-11 10:53:26,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:26,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 10:53:26,482 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-11 10:53:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 10:53:26,502 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-11 10:53:26,502 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-11 10:53:26,502 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-02-11 10:53:26,502 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-11 10:53:26,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-11 10:53:26,503 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-11 10:53:26,504 INFO L313 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2022-02-11 10:53:26,504 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-11 10:53:26,504 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-11 10:53:26,511 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,511 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,511 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,511 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,512 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,513 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,514 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,515 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,515 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,515 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,515 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,515 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,515 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,515 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,515 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,515 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,515 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,515 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,516 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,516 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,516 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,516 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,516 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,516 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,516 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,516 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,516 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,517 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,517 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,517 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,517 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:26,520 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-02-11 10:53:26,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 10:53:26,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:26,521 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 10:53:26,522 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 10:53:26,524 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of2ForFork1 ======== [2022-02-11 10:53:26,525 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 10:53:26,525 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-11 10:53:26,640 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-11 10:53:26,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:26,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1770556303, now seen corresponding path program 1 times [2022-02-11 10:53:26,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:26,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389042113] [2022-02-11 10:53:26,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:26,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:26,657 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 10:53:26,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:26,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389042113] [2022-02-11 10:53:26,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389042113] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 10:53:26,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 10:53:26,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 10:53:26,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195729424] [2022-02-11 10:53:26,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 10:53:26,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 10:53:26,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:26,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 10:53:26,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 10:53:26,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:26,660 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:26,660 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 10:53:26,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:26,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:26,989 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-11 10:53:26,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-11 10:53:26,991 INFO L733 BasicCegarLoop]: Path program histogram: [1] [2022-02-11 10:53:26,991 INFO L313 ceAbstractionStarter]: Result for error location checkThreadThread1of2ForFork1 was SAFE (1/3) [2022-02-11 10:53:26,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 10:53:26,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:26,993 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 10:53:27,018 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread2of2ForFork1 ======== [2022-02-11 10:53:27,019 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 10:53:27,019 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-11 10:53:27,034 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 10:53:27,118 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-11 10:53:27,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:27,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1182087366, now seen corresponding path program 1 times [2022-02-11 10:53:27,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:27,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486082455] [2022-02-11 10:53:27,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:27,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:27,137 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 10:53:27,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:27,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486082455] [2022-02-11 10:53:27,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486082455] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 10:53:27,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 10:53:27,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 10:53:27,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35888101] [2022-02-11 10:53:27,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 10:53:27,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 10:53:27,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:27,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 10:53:27,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 10:53:27,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:27,139 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:27,140 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 10:53:27,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,242 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-11 10:53:28,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-11 10:53:28,244 INFO L733 BasicCegarLoop]: Path program histogram: [1] [2022-02-11 10:53:28,245 INFO L313 ceAbstractionStarter]: Result for error location checkThreadThread2of2ForFork1 was SAFE (2/3) [2022-02-11 10:53:28,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 10:53:28,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:28,262 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 10:53:28,265 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 10:53:28,266 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 10:53:28,267 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 10:53:28,267 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-11 10:53:28,317 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:28,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:28,318 INFO L85 PathProgramCache]: Analyzing trace with hash -811399889, now seen corresponding path program 1 times [2022-02-11 10:53:28,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:28,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043367841] [2022-02-11 10:53:28,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:28,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:28,332 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 10:53:28,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:28,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043367841] [2022-02-11 10:53:28,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043367841] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 10:53:28,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 10:53:28,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 10:53:28,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777937426] [2022-02-11 10:53:28,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 10:53:28,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 10:53:28,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:28,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 10:53:28,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 10:53:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,334 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:28,334 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 10:53:28,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-11 10:53:28,338 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:28,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:28,338 INFO L85 PathProgramCache]: Analyzing trace with hash 150214128, now seen corresponding path program 1 times [2022-02-11 10:53:28,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:28,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693194965] [2022-02-11 10:53:28,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:28,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:28,355 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 10:53:28,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:28,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693194965] [2022-02-11 10:53:28,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693194965] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 10:53:28,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 10:53:28,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-11 10:53:28,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393317406] [2022-02-11 10:53:28,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 10:53:28,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-11 10:53:28,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:28,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-11 10:53:28,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-11 10:53:28,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,357 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:28,357 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 10:53:28,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 10:53:28,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-11 10:53:28,413 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:28,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:28,413 INFO L85 PathProgramCache]: Analyzing trace with hash -383037725, now seen corresponding path program 1 times [2022-02-11 10:53:28,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:28,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309645376] [2022-02-11 10:53:28,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:28,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:28,444 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 10:53:28,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:28,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309645376] [2022-02-11 10:53:28,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309645376] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 10:53:28,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731263623] [2022-02-11 10:53:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:28,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 10:53:28,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:28,446 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 10:53:28,463 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 10:53:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:28,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-11 10:53:28,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 10:53:28,661 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 10:53:28,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 10:53:28,793 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 10:53:28,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731263623] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 10:53:28,793 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 10:53:28,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-11 10:53:28,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997614166] [2022-02-11 10:53:28,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 10:53:28,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-11 10:53:28,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:28,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-11 10:53:28,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-11 10:53:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,795 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:28,795 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 10:53:28,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 10:53:28,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:28,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 10:53:28,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 10:53:28,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-11 10:53:29,086 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 10:53:29,087 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:29,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:29,087 INFO L85 PathProgramCache]: Analyzing trace with hash 466397582, now seen corresponding path program 1 times [2022-02-11 10:53:29,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:29,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398304736] [2022-02-11 10:53:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:29,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 10:53:29,099 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-11 10:53:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 10:53:29,122 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-11 10:53:29,122 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-11 10:53:29,122 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-11 10:53:29,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 2 remaining) [2022-02-11 10:53:29,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-11 10:53:29,124 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-11 10:53:29,124 INFO L313 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/3) [2022-02-11 10:53:29,124 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-11 10:53:29,124 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-02-11 10:53:29,138 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,138 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,138 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,138 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,138 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,138 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,139 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,139 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,139 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,139 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,139 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,139 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,139 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,139 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,139 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,139 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,139 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,142 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,142 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,142 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,143 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,144 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,145 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,145 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,145 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,145 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,145 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,145 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,145 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,145 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,145 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,145 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,145 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,146 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,147 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,147 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,147 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,147 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,147 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,147 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,147 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,147 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,147 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,147 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,147 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,148 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,148 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,148 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,148 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,148 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,148 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,148 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,148 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,148 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,148 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,149 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,149 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:29,154 INFO L148 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-02-11 10:53:29,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 10:53:29,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:29,156 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 10:53:29,179 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 10:53:29,181 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 10:53:29,181 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 10:53:29,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-11 10:53:29,273 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:29,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:29,273 INFO L85 PathProgramCache]: Analyzing trace with hash -668133052, now seen corresponding path program 1 times [2022-02-11 10:53:29,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:29,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475499521] [2022-02-11 10:53:29,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:29,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:29,288 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 10:53:29,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:29,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475499521] [2022-02-11 10:53:29,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475499521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 10:53:29,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 10:53:29,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 10:53:29,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53189894] [2022-02-11 10:53:29,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 10:53:29,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 10:53:29,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:29,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 10:53:29,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 10:53:29,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:29,290 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:29,290 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 10:53:29,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:29,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:29,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-11 10:53:29,295 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:29,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:29,296 INFO L85 PathProgramCache]: Analyzing trace with hash -338367291, now seen corresponding path program 1 times [2022-02-11 10:53:29,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:29,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847951020] [2022-02-11 10:53:29,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:29,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:29,310 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 10:53:29,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:29,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847951020] [2022-02-11 10:53:29,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847951020] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 10:53:29,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 10:53:29,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-11 10:53:29,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867800584] [2022-02-11 10:53:29,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 10:53:29,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-11 10:53:29,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:29,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-11 10:53:29,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-11 10:53:29,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:29,312 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:29,312 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 10:53:29,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:29,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 10:53:29,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-11 10:53:29,399 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:29,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:29,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1272455835, now seen corresponding path program 1 times [2022-02-11 10:53:29,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:29,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92794013] [2022-02-11 10:53:29,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:29,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:29,425 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 10:53:29,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:29,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92794013] [2022-02-11 10:53:29,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92794013] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 10:53:29,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942332971] [2022-02-11 10:53:29,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:29,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 10:53:29,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:29,440 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 10:53:29,482 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 10:53:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:29,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-11 10:53:29,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 10:53:29,607 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 10:53:29,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 10:53:29,693 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 10:53:29,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942332971] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 10:53:29,694 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 10:53:29,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-11 10:53:29,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286109345] [2022-02-11 10:53:29,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 10:53:29,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-11 10:53:29,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:29,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-11 10:53:29,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-11 10:53:29,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:29,695 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:29,695 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 10:53:29,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:29,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 10:53:29,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:29,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:29,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 10:53:29,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 10:53:29,902 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 10:53:30,102 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 10:53:30,102 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:30,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:30,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1028683176, now seen corresponding path program 1 times [2022-02-11 10:53:30,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:30,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490922463] [2022-02-11 10:53:30,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:30,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:30,134 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 10:53:30,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:30,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490922463] [2022-02-11 10:53:30,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490922463] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 10:53:30,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122886559] [2022-02-11 10:53:30,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:30,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 10:53:30,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:30,136 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 10:53:30,136 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 10:53:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:30,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-11 10:53:30,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 10:53:30,347 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 10:53:30,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 10:53:30,496 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 10:53:30,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122886559] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 10:53:30,497 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 10:53:30,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-02-11 10:53:30,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281977338] [2022-02-11 10:53:30,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 10:53:30,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-11 10:53:30,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:30,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-11 10:53:30,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-02-11 10:53:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:30,499 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:30,499 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 10:53:30,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:30,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 10:53:30,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 10:53:30,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 10:53:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 10:53:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-11 10:53:30,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-02-11 10:53:30,835 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 10:53:30,835 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-11 10:53:30,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:30,836 INFO L85 PathProgramCache]: Analyzing trace with hash 705944414, now seen corresponding path program 1 times [2022-02-11 10:53:30,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:30,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476544586] [2022-02-11 10:53:30,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:30,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 10:53:30,848 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-11 10:53:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 10:53:30,857 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-11 10:53:30,857 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-11 10:53:30,857 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-11 10:53:30,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 2 remaining) [2022-02-11 10:53:30,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-11 10:53:30,858 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-02-11 10:53:30,858 INFO L313 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/4) [2022-02-11 10:53:30,859 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-11 10:53:30,859 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-02-11 10:53:30,867 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,867 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,867 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,867 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,867 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,867 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,868 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,869 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,870 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,871 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,872 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,873 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,873 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,873 WARN L322 ript$VariableManager]: TermVariable |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,873 WARN L322 ript$VariableManager]: TermVariable setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,873 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,873 WARN L322 ript$VariableManager]: TermVariable |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,873 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,873 WARN L322 ript$VariableManager]: TermVariable setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,873 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,873 WARN L322 ript$VariableManager]: TermVariable |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,874 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,875 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,875 WARN L322 ript$VariableManager]: TermVariable checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,875 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,875 WARN L322 ript$VariableManager]: TermVariable checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,875 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,875 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,875 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,875 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,875 WARN L322 ript$VariableManager]: TermVariable checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,875 WARN L322 ript$VariableManager]: TermVariable |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 10:53:30,878 INFO L148 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2022-02-11 10:53:30,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 10:53:30,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 10:53:30,880 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 10:53:30,891 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 10:53:30,893 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread4of4ForFork1 ======== [2022-02-11 10:53:30,893 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 10:53:30,893 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-11 10:53:31,174 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-11 10:53:31,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 10:53:31,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1780962163, now seen corresponding path program 1 times [2022-02-11 10:53:31,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 10:53:31,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775862351] [2022-02-11 10:53:31,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 10:53:31,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 10:53:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 10:53:31,187 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 10:53:31,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 10:53:31,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775862351] [2022-02-11 10:53:31,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775862351] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 10:53:31,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 10:53:31,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 10:53:31,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578718287] [2022-02-11 10:53:31,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 10:53:31,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 10:53:31,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 10:53:31,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 10:53:31,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 10:53:31,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 10:53:31,189 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 10:53:31,189 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 10:53:31,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.