/usr/bin/java -Xmx16000000000 -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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_good-20.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-14 06:04:44,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-14 06:04:44,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-14 06:04:44,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-14 06:04:44,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-14 06:04:44,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-14 06:04:44,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-14 06:04:44,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-14 06:04:44,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-14 06:04:44,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-14 06:04:44,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-14 06:04:44,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-14 06:04:44,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-14 06:04:44,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-14 06:04:44,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-14 06:04:44,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-14 06:04:44,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-14 06:04:44,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-14 06:04:44,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-14 06:04:44,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-14 06:04:44,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-14 06:04:44,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-14 06:04:44,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-14 06:04:44,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-14 06:04:44,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-11-14 06:04:44,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-14 06:04:44,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-14 06:04:44,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-14 06:04:44,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-14 06:04:44,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-14 06:04:44,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-14 06:04:44,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-14 06:04:44,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-14 06:04:44,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-14 06:04:44,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-14 06:04:44,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-14 06:04:44,442 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-Lockstep.epf [2021-11-14 06:04:44,473 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-14 06:04:44,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-14 06:04:44,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-14 06:04:44,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-14 06:04:44,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-14 06:04:44,474 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-14 06:04:44,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-14 06:04:44,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-14 06:04:44,475 INFO L138 SettingsManager]: * Use SBE=true [2021-11-14 06:04:44,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-14 06:04:44,476 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-14 06:04:44,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-14 06:04:44,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-14 06:04:44,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-14 06:04:44,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-14 06:04:44,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-14 06:04:44,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-14 06:04:44,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-14 06:04:44,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-14 06:04:44,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-14 06:04:44,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-14 06:04:44,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-14 06:04:44,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-14 06:04:44,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-14 06:04:44,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-14 06:04:44,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 06:04:44,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-14 06:04:44,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-14 06:04:44,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-14 06:04:44,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-14 06:04:44,479 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-11-14 06:04:44,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-14 06:04:44,480 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-14 06:04:44,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-14 06:04:44,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-14 06:04:44,480 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-14 06:04:44,480 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-14 06:04:44,480 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-14 06:04:44,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-14 06:04:44,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-14 06:04:44,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-14 06:04:44,708 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-14 06:04:44,708 INFO L275 PluginConnector]: CDTParser initialized [2021-11-14 06:04:44,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_good-20.i [2021-11-14 06:04:44,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b850bddd1/6a4fc10c82a249af80533ffa3438c1d6/FLAG7e64fbb6c [2021-11-14 06:04:45,288 INFO L306 CDTParser]: Found 1 translation units. [2021-11-14 06:04:45,289 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_good-20.i [2021-11-14 06:04:45,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b850bddd1/6a4fc10c82a249af80533ffa3438c1d6/FLAG7e64fbb6c [2021-11-14 06:04:45,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b850bddd1/6a4fc10c82a249af80533ffa3438c1d6 [2021-11-14 06:04:45,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-14 06:04:45,613 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-14 06:04:45,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-14 06:04:45,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-14 06:04:45,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-14 06:04:45,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 06:04:45" (1/1) ... [2021-11-14 06:04:45,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f268a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:45, skipping insertion in model container [2021-11-14 06:04:45,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 06:04:45" (1/1) ... [2021-11-14 06:04:45,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-14 06:04:45,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-14 06:04:45,980 WARN L228 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-20.i[30195,30208] [2021-11-14 06:04:45,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 06:04:46,005 INFO L203 MainTranslator]: Completed pre-run [2021-11-14 06:04:46,051 WARN L228 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-20.i[30195,30208] [2021-11-14 06:04:46,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 06:04:46,091 INFO L208 MainTranslator]: Completed translation [2021-11-14 06:04:46,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46 WrapperNode [2021-11-14 06:04:46,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-14 06:04:46,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-14 06:04:46,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-14 06:04:46,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-14 06:04:46,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46" (1/1) ... [2021-11-14 06:04:46,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46" (1/1) ... [2021-11-14 06:04:46,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-14 06:04:46,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-14 06:04:46,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-14 06:04:46,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-14 06:04:46,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46" (1/1) ... [2021-11-14 06:04:46,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46" (1/1) ... [2021-11-14 06:04:46,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46" (1/1) ... [2021-11-14 06:04:46,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46" (1/1) ... [2021-11-14 06:04:46,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46" (1/1) ... [2021-11-14 06:04:46,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46" (1/1) ... [2021-11-14 06:04:46,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46" (1/1) ... [2021-11-14 06:04:46,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-14 06:04:46,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-14 06:04:46,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-14 06:04:46,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-14 06:04:46,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46" (1/1) ... [2021-11-14 06:04:46,196 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 06:04:46,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:46,215 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) [2021-11-14 06:04:46,216 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 [2021-11-14 06:04:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-14 06:04:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2021-11-14 06:04:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2021-11-14 06:04:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-14 06:04:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-14 06:04:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-14 06:04:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-14 06:04:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-14 06:04:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2021-11-14 06:04:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2021-11-14 06:04:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-14 06:04:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-14 06:04:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-14 06:04:46,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-14 06:04:46,255 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-14 06:04:46,555 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-14 06:04:46,555 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-14 06:04:46,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 06:04:46 BoogieIcfgContainer [2021-11-14 06:04:46,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-14 06:04:46,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-14 06:04:46,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-14 06:04:46,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-14 06:04:46,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 06:04:45" (1/3) ... [2021-11-14 06:04:46,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fbf107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 06:04:46, skipping insertion in model container [2021-11-14 06:04:46,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:04:46" (2/3) ... [2021-11-14 06:04:46,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fbf107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 06:04:46, skipping insertion in model container [2021-11-14 06:04:46,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 06:04:46" (3/3) ... [2021-11-14 06:04:46,564 INFO L111 eAbstractionObserver]: Analyzing ICFG reorder_c11_good-20.i [2021-11-14 06:04:46,568 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-14 06:04:46,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-14 06:04:46,569 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-14 06:04:46,569 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-14 06:04:46,626 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,626 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,626 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,626 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,627 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,627 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,627 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,627 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,630 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,630 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,630 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,631 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,631 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,631 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,631 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,631 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,632 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,632 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,632 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,632 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,632 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,632 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,633 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,633 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,635 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,636 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,636 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,636 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,643 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,644 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,644 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,644 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:46,653 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-14 06:04:46,712 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 06:04:46,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:46,716 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) [2021-11-14 06:04:46,747 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 [2021-11-14 06:04:46,751 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2021-11-14 06:04:46,759 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 [2021-11-14 06:04:46,759 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 06:04:46,865 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 06:04:46,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:46,871 INFO L85 PathProgramCache]: Analyzing trace with hash -578927007, now seen corresponding path program 1 times [2021-11-14 06:04:46,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:46,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754167631] [2021-11-14 06:04:46,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:46,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:47,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 06:04:47,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:47,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754167631] [2021-11-14 06:04:47,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754167631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 06:04:47,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 06:04:47,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 06:04:47,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727534080] [2021-11-14 06:04:47,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 06:04:47,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 06:04:47,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:47,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 06:04:47,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 06:04:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:47,102 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:47,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2021-11-14 06:04:47,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:47,262 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 06:04:47,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-14 06:04:47,270 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-14 06:04:47,271 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was SAFE (1/2) [2021-11-14 06:04:47,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 06:04:47,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:47,284 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) [2021-11-14 06:04:47,285 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 [2021-11-14 06:04:47,289 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 06:04:47,290 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 [2021-11-14 06:04:47,291 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-14 06:04:47,303 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:47,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:47,304 INFO L85 PathProgramCache]: Analyzing trace with hash 296701678, now seen corresponding path program 1 times [2021-11-14 06:04:47,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:47,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141003105] [2021-11-14 06:04:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:47,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:47,377 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-14 06:04:47,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:47,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141003105] [2021-11-14 06:04:47,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141003105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 06:04:47,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 06:04:47,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 06:04:47,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446234037] [2021-11-14 06:04:47,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 06:04:47,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 06:04:47,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:47,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 06:04:47,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 06:04:47,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:47,380 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:47,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-11-14 06:04:47,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:47,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:47,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-14 06:04:47,396 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:47,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:47,396 INFO L85 PathProgramCache]: Analyzing trace with hash 508052591, now seen corresponding path program 1 times [2021-11-14 06:04:47,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:47,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791264216] [2021-11-14 06:04:47,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:47,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-14 06:04:47,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:47,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791264216] [2021-11-14 06:04:47,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791264216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 06:04:47,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 06:04:47,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 06:04:47,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450906656] [2021-11-14 06:04:47,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 06:04:47,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 06:04:47,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:47,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 06:04:47,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 06:04:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:47,465 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:47,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-11-14 06:04:47,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:47,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:47,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:47,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 06:04:47,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-14 06:04:47,555 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:47,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:47,556 INFO L85 PathProgramCache]: Analyzing trace with hash -608125475, now seen corresponding path program 1 times [2021-11-14 06:04:47,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:47,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078944045] [2021-11-14 06:04:47,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:47,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:47,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-14 06:04:47,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:47,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078944045] [2021-11-14 06:04:47,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078944045] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 06:04:47,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259806689] [2021-11-14 06:04:47,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:47,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 06:04:47,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:47,908 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) [2021-11-14 06:04:47,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-14 06:04:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:47,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-14 06:04:47,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 06:04:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-14 06:04:48,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 06:04:48,349 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-14 06:04:48,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259806689] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 06:04:48,349 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 06:04:48,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-14 06:04:48,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874272813] [2021-11-14 06:04:48,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 06:04:48,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-14 06:04:48,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:48,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-14 06:04:48,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-14 06:04:48,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:48,353 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:48,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2021-11-14 06:04:48,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:48,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 06:04:48,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:48,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:48,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 06:04:48,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 06:04:48,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-14 06:04:48,618 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 [2021-11-14 06:04:48,619 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:48,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:48,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1539964490, now seen corresponding path program 1 times [2021-11-14 06:04:48,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:48,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202225126] [2021-11-14 06:04:48,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:48,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 06:04:48,634 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 06:04:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 06:04:48,690 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 06:04:48,690 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 06:04:48,690 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2021-11-14 06:04:48,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-14 06:04:48,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-14 06:04:48,698 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-14 06:04:48,699 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2021-11-14 06:04:48,699 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 06:04:48,699 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-14 06:04:48,714 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,715 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,715 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,715 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,715 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,715 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,715 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,715 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,716 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,716 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,716 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,716 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,716 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,716 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,717 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,717 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,717 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,717 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,717 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,717 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,718 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,718 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,719 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,719 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,720 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,722 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,726 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,727 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,727 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,727 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,727 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,727 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,728 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,728 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,728 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,730 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,730 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,730 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,730 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,731 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,731 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,731 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,731 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,731 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,732 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,732 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,732 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,732 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,732 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,733 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,733 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,733 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,733 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,734 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,735 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,735 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,735 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,735 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,736 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,736 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,736 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,736 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:48,741 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2021-11-14 06:04:48,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 06:04:48,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:48,743 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) [2021-11-14 06:04:48,744 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 [2021-11-14 06:04:48,746 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of2ForFork1 ======== [2021-11-14 06:04:48,746 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 [2021-11-14 06:04:48,746 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 06:04:48,789 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 06:04:48,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:48,790 INFO L85 PathProgramCache]: Analyzing trace with hash -833712926, now seen corresponding path program 1 times [2021-11-14 06:04:48,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:48,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946202575] [2021-11-14 06:04:48,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:48,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:48,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 06:04:48,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:48,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946202575] [2021-11-14 06:04:48,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946202575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 06:04:48,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 06:04:48,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 06:04:48,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140066363] [2021-11-14 06:04:48,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 06:04:48,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 06:04:48,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:48,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 06:04:48,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 06:04:48,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:48,810 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:48,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2021-11-14 06:04:48,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:49,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:49,045 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 06:04:49,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-14 06:04:49,047 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-14 06:04:49,047 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread1of2ForFork1 was SAFE (1/3) [2021-11-14 06:04:49,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 06:04:49,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:49,055 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) [2021-11-14 06:04:49,062 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 [2021-11-14 06:04:49,063 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread2of2ForFork1 ======== [2021-11-14 06:04:49,064 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 [2021-11-14 06:04:49,064 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 06:04:49,110 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 06:04:49,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:49,110 INFO L85 PathProgramCache]: Analyzing trace with hash 655119639, now seen corresponding path program 1 times [2021-11-14 06:04:49,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:49,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263617376] [2021-11-14 06:04:49,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:49,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:49,147 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-14 06:04:49,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:49,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263617376] [2021-11-14 06:04:49,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263617376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 06:04:49,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 06:04:49,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 06:04:49,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307630851] [2021-11-14 06:04:49,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 06:04:49,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 06:04:49,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:49,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 06:04:49,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 06:04:49,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:49,150 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:49,150 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) [2021-11-14 06:04:49,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,258 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 06:04:50,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-14 06:04:50,261 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-14 06:04:50,261 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread2of2ForFork1 was SAFE (2/3) [2021-11-14 06:04:50,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 06:04:50,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:50,271 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) [2021-11-14 06:04:50,279 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 06:04:50,279 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 [2021-11-14 06:04:50,279 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-14 06:04:50,297 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 [2021-11-14 06:04:50,321 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:50,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:50,322 INFO L85 PathProgramCache]: Analyzing trace with hash 237338309, now seen corresponding path program 1 times [2021-11-14 06:04:50,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:50,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303883323] [2021-11-14 06:04:50,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:50,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:50,343 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-14 06:04:50,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:50,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303883323] [2021-11-14 06:04:50,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303883323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 06:04:50,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 06:04:50,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 06:04:50,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311745307] [2021-11-14 06:04:50,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 06:04:50,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 06:04:50,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:50,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 06:04:50,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 06:04:50,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,347 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:50,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2021-11-14 06:04:50,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-14 06:04:50,354 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:50,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:50,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1962819206, now seen corresponding path program 1 times [2021-11-14 06:04:50,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:50,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290840360] [2021-11-14 06:04:50,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:50,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-14 06:04:50,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:50,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290840360] [2021-11-14 06:04:50,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290840360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 06:04:50,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 06:04:50,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 06:04:50,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967687808] [2021-11-14 06:04:50,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 06:04:50,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 06:04:50,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:50,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 06:04:50,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 06:04:50,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,406 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:50,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-14 06:04:50,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 06:04:50,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-14 06:04:50,448 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:50,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:50,448 INFO L85 PathProgramCache]: Analyzing trace with hash 883617819, now seen corresponding path program 1 times [2021-11-14 06:04:50,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:50,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910201702] [2021-11-14 06:04:50,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:50,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:50,505 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-14 06:04:50,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:50,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910201702] [2021-11-14 06:04:50,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910201702] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 06:04:50,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774748088] [2021-11-14 06:04:50,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:50,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 06:04:50,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:50,508 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) [2021-11-14 06:04:50,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-14 06:04:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:50,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-14 06:04:50,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 06:04:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-14 06:04:50,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 06:04:50,880 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-14 06:04:50,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774748088] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 06:04:50,881 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 06:04:50,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-14 06:04:50,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113607407] [2021-11-14 06:04:50,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 06:04:50,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-14 06:04:50,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:50,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-14 06:04:50,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-14 06:04:50,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,883 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:50,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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) [2021-11-14 06:04:50,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 06:04:50,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 06:04:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 06:04:50,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-14 06:04:51,155 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 [2021-11-14 06:04:51,156 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:51,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:51,156 INFO L85 PathProgramCache]: Analyzing trace with hash -948405415, now seen corresponding path program 1 times [2021-11-14 06:04:51,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:51,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131887125] [2021-11-14 06:04:51,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:51,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 06:04:51,167 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 06:04:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 06:04:51,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 06:04:51,184 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 06:04:51,185 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2021-11-14 06:04:51,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-14 06:04:51,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-14 06:04:51,186 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-14 06:04:51,186 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/3) [2021-11-14 06:04:51,186 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 06:04:51,186 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-14 06:04:51,195 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,195 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,195 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,195 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,195 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,195 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,195 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,196 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,196 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,196 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,196 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,196 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,196 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,196 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,196 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,196 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,196 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,197 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,197 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,197 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,197 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,197 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,197 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,197 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,197 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,197 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,197 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,198 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,198 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,198 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,198 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,198 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,198 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,198 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,198 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,198 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,198 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,199 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,199 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,199 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,199 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,199 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,199 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,199 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,199 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,199 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,199 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,199 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,200 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,200 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,200 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,200 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,200 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,200 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,200 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,200 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,200 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,200 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,201 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,201 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,201 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,201 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,201 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,201 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,201 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,201 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,201 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,201 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,202 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,202 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,202 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,202 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,202 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,202 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,202 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,203 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,203 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,203 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,203 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,203 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,203 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,204 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,204 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,204 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,204 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,204 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,204 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,204 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,205 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,205 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,205 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,205 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,205 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,205 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,205 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,206 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:51,208 INFO L148 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2021-11-14 06:04:51,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 06:04:51,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:51,210 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) [2021-11-14 06:04:51,211 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 [2021-11-14 06:04:51,213 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 06:04:51,213 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 [2021-11-14 06:04:51,213 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-14 06:04:51,252 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:51,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:51,253 INFO L85 PathProgramCache]: Analyzing trace with hash -223093788, now seen corresponding path program 1 times [2021-11-14 06:04:51,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:51,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633453692] [2021-11-14 06:04:51,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:51,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:51,277 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-14 06:04:51,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:51,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633453692] [2021-11-14 06:04:51,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633453692] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 06:04:51,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 06:04:51,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 06:04:51,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694507447] [2021-11-14 06:04:51,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 06:04:51,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 06:04:51,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:51,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 06:04:51,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 06:04:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:51,279 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:51,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 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) [2021-11-14 06:04:51,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:51,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-14 06:04:51,285 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:51,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:51,285 INFO L85 PathProgramCache]: Analyzing trace with hash -230853147, now seen corresponding path program 1 times [2021-11-14 06:04:51,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:51,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076174022] [2021-11-14 06:04:51,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:51,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-14 06:04:51,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:51,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076174022] [2021-11-14 06:04:51,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076174022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 06:04:51,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 06:04:51,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 06:04:51,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112469601] [2021-11-14 06:04:51,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 06:04:51,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 06:04:51,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:51,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 06:04:51,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 06:04:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:51,303 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:51,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-11-14 06:04:51,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:51,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:51,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:51,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 06:04:51,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-14 06:04:51,335 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:51,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:51,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1510947762, now seen corresponding path program 1 times [2021-11-14 06:04:51,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:51,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423186423] [2021-11-14 06:04:51,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:51,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:51,366 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-14 06:04:51,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:51,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423186423] [2021-11-14 06:04:51,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423186423] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 06:04:51,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494817449] [2021-11-14 06:04:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:51,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 06:04:51,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:51,371 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) [2021-11-14 06:04:51,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-14 06:04:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:51,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-14 06:04:51,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 06:04:51,582 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-14 06:04:51,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 06:04:51,730 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-14 06:04:51,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494817449] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 06:04:51,730 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 06:04:51,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-14 06:04:51,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101247164] [2021-11-14 06:04:51,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 06:04:51,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-14 06:04:51,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:51,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-14 06:04:51,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-14 06:04:51,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:51,734 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:51,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2021-11-14 06:04:51,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:51,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 06:04:51,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:51,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:51,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 06:04:51,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 06:04:51,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-14 06:04:52,032 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 [2021-11-14 06:04:52,033 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:52,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:52,033 INFO L85 PathProgramCache]: Analyzing trace with hash 368709414, now seen corresponding path program 1 times [2021-11-14 06:04:52,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:52,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180724078] [2021-11-14 06:04:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:52,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:52,124 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-14 06:04:52,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:52,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180724078] [2021-11-14 06:04:52,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180724078] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 06:04:52,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887362953] [2021-11-14 06:04:52,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:52,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 06:04:52,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:52,126 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) [2021-11-14 06:04:52,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-14 06:04:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:52,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-14 06:04:52,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 06:04:52,465 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-14 06:04:52,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 06:04:52,714 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-14 06:04:52,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887362953] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 06:04:52,714 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 06:04:52,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2021-11-14 06:04:52,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417510997] [2021-11-14 06:04:52,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 06:04:52,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-14 06:04:52,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:52,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-14 06:04:52,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2021-11-14 06:04:52,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:52,718 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:52,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.789473684210526) internal successors, (186), 19 states have internal predecessors, (186), 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) [2021-11-14 06:04:52,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:52,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 06:04:52,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 06:04:52,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:52,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:52,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 06:04:52,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 06:04:52,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 06:04:52,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-14 06:04:53,024 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 [2021-11-14 06:04:53,025 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 06:04:53,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:53,025 INFO L85 PathProgramCache]: Analyzing trace with hash -559680978, now seen corresponding path program 1 times [2021-11-14 06:04:53,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:53,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338450571] [2021-11-14 06:04:53,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:53,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 06:04:53,036 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 06:04:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 06:04:53,060 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 06:04:53,061 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 06:04:53,061 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-14 06:04:53,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 2 remaining) [2021-11-14 06:04:53,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-14 06:04:53,062 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-14 06:04:53,062 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/4) [2021-11-14 06:04:53,063 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 06:04:53,063 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-14 06:04:53,074 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,074 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,074 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,074 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,074 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,074 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,075 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,076 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,077 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,078 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,078 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,078 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,078 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,078 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,078 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,078 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,078 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,078 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,078 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,078 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,079 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,079 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,079 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,079 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,079 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,079 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,079 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,079 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,079 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,079 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,079 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,080 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,081 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,081 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,081 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,081 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,081 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,081 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,082 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,083 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,083 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,083 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,083 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,084 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,084 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,084 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,084 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,084 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,084 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,084 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,084 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,085 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,085 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,085 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,085 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,085 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,085 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,085 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,085 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,086 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,086 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,086 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,086 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,086 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,086 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,086 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,086 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,087 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,087 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,087 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,087 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 06:04:53,089 INFO L148 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-11-14 06:04:53,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 06:04:53,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 06:04:53,091 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) [2021-11-14 06:04:53,092 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 [2021-11-14 06:04:53,094 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread4of4ForFork1 ======== [2021-11-14 06:04:53,095 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 [2021-11-14 06:04:53,095 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 06:04:53,145 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 06:04:53,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 06:04:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1184770628, now seen corresponding path program 1 times [2021-11-14 06:04:53,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 06:04:53,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900175015] [2021-11-14 06:04:53,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 06:04:53,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 06:04:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 06:04:53,158 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-14 06:04:53,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 06:04:53,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900175015] [2021-11-14 06:04:53,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900175015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 06:04:53,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 06:04:53,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 06:04:53,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453821424] [2021-11-14 06:04:53,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 06:04:53,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 06:04:53,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 06:04:53,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 06:04:53,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 06:04:53,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 06:04:53,160 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 06:04:53,160 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) [2021-11-14 06:04:53,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.