/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-24 23:59:51,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 23:59:51,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 23:59:51,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-24 23:59:51,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 23:59:51,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 23:59:51,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 23:59:51,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 23:59:51,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 23:59:51,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 23:59:51,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 23:59:51,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 23:59:51,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 23:59:51,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 23:59:51,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 23:59:51,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 23:59:51,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-24 23:59:51,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 23:59:51,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 23:59:51,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 23:59:51,544 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-Uncond-NoLbe-Lockstep.epf [2021-10-24 23:59:51,571 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 23:59:51,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 23:59:51,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-24 23:59:51,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-24 23:59:51,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 23:59:51,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 23:59:51,573 INFO L138 SettingsManager]: * Use SBE=true [2021-10-24 23:59:51,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 23:59:51,574 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 23:59:51,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 23:59:51,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 23:59:51,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 23:59:51,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 23:59:51,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 23:59:51,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 23:59:51,575 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 23:59:51,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 23:59:51,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 23:59:51,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 23:59:51,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 23:59:51,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 23:59:51,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-24 23:59:51,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 23:59:51,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 23:59:51,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 23:59:51,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 23:59:51,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 23:59:51,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-24 23:59:51,578 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-10-24 23:59:51,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 23:59:51,578 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-24 23:59:51,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-24 23:59:51,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 23:59:51,578 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-24 23:59:51,578 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-24 23:59:51,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 23:59:51,579 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-24 23:59:51,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 23:59:51,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 23:59:51,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 23:59:51,778 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 23:59:51,779 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 23:59:51,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2021-10-24 23:59:51,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f44f343e5/56417910122342dda23513cc98bcfed0/FLAGa8a85d024 [2021-10-24 23:59:52,247 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 23:59:52,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2021-10-24 23:59:52,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f44f343e5/56417910122342dda23513cc98bcfed0/FLAGa8a85d024 [2021-10-24 23:59:52,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f44f343e5/56417910122342dda23513cc98bcfed0 [2021-10-24 23:59:52,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 23:59:52,607 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-24 23:59:52,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 23:59:52,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 23:59:52,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 23:59:52,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:59:52" (1/1) ... [2021-10-24 23:59:52,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ffaf4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:52, skipping insertion in model container [2021-10-24 23:59:52,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:59:52" (1/1) ... [2021-10-24 23:59:52,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 23:59:52,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 23:59:52,826 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-24 23:59:52,931 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-atomic/dekker.i[31403,31416] [2021-10-24 23:59:52,936 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-atomic/dekker.i[32483,32496] [2021-10-24 23:59:52,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 23:59:52,956 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 23:59:52,982 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-24 23:59:53,008 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-atomic/dekker.i[31403,31416] [2021-10-24 23:59:53,014 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-atomic/dekker.i[32483,32496] [2021-10-24 23:59:53,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 23:59:53,057 INFO L208 MainTranslator]: Completed translation [2021-10-24 23:59:53,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53 WrapperNode [2021-10-24 23:59:53,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 23:59:53,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 23:59:53,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 23:59:53,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 23:59:53,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53" (1/1) ... [2021-10-24 23:59:53,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53" (1/1) ... [2021-10-24 23:59:53,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 23:59:53,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 23:59:53,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 23:59:53,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 23:59:53,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53" (1/1) ... [2021-10-24 23:59:53,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53" (1/1) ... [2021-10-24 23:59:53,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53" (1/1) ... [2021-10-24 23:59:53,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53" (1/1) ... [2021-10-24 23:59:53,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53" (1/1) ... [2021-10-24 23:59:53,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53" (1/1) ... [2021-10-24 23:59:53,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53" (1/1) ... [2021-10-24 23:59:53,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 23:59:53,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 23:59:53,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 23:59:53,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 23:59:53,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53" (1/1) ... [2021-10-24 23:59:53,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 23:59:53,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 23:59:53,181 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) [2021-10-24 23:59:53,205 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 [2021-10-24 23:59:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-24 23:59:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-10-24 23:59:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-10-24 23:59:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-10-24 23:59:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-10-24 23:59:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-24 23:59:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-24 23:59:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 23:59:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 23:59:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 23:59:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-24 23:59:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 23:59:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 23:59:53,232 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-24 23:59:53,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 23:59:53,588 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-24 23:59:53,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:59:53 BoogieIcfgContainer [2021-10-24 23:59:53,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 23:59:53,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 23:59:53,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 23:59:53,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 23:59:53,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:59:52" (1/3) ... [2021-10-24 23:59:53,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6331aa9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:59:53, skipping insertion in model container [2021-10-24 23:59:53,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:53" (2/3) ... [2021-10-24 23:59:53,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6331aa9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:59:53, skipping insertion in model container [2021-10-24 23:59:53,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:59:53" (3/3) ... [2021-10-24 23:59:53,599 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2021-10-24 23:59:53,604 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-24 23:59:53,604 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 23:59:53,605 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-24 23:59:53,605 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-24 23:59:53,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,642 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,642 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,642 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,647 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,647 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,649 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,650 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,650 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,650 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,651 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,653 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,653 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,653 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,653 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,653 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,653 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,654 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,654 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,659 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,660 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,660 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,660 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,667 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,667 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,667 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,667 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,667 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,673 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,673 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,674 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,674 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,674 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,675 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 23:59:53,683 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-24 23:59:53,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-24 23:59:53,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 23:59:53,727 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) [2021-10-24 23:59:53,734 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 [2021-10-24 23:59:53,757 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2021-10-24 23:59:53,762 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, mConcurrency=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 [2021-10-24 23:59:53,762 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 23:59:53,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:53,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:53,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1342134339, now seen corresponding path program 1 times [2021-10-24 23:59:53,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:53,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098156951] [2021-10-24 23:59:53,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:53,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 23:59:54,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:54,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098156951] [2021-10-24 23:59:54,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098156951] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:54,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:54,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 23:59:54,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981609754] [2021-10-24 23:59:54,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 23:59:54,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:54,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 23:59:54,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 23:59:54,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,054 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:54,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 23:59:54,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 23:59:54,076 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:54,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:54,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1214398360, now seen corresponding path program 1 times [2021-10-24 23:59:54,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:54,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047133077] [2021-10-24 23:59:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:54,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 23:59:54,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:54,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047133077] [2021-10-24 23:59:54,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047133077] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:54,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:54,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 23:59:54,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974075216] [2021-10-24 23:59:54,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 23:59:54,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:54,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 23:59:54,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 23:59:54,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,215 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:54,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 23:59:54,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:54,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 23:59:54,277 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:54,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:54,279 INFO L82 PathProgramCache]: Analyzing trace with hash 2064161582, now seen corresponding path program 1 times [2021-10-24 23:59:54,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:54,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543735119] [2021-10-24 23:59:54,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:54,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:54,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 23:59:54,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:54,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543735119] [2021-10-24 23:59:54,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543735119] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:54,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:54,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 23:59:54,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749602038] [2021-10-24 23:59:54,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 23:59:54,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:54,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 23:59:54,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 23:59:54,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,386 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:54,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-10-24 23:59:54,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:54,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 23:59:54,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 23:59:54,553 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:54,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:54,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1199408698, now seen corresponding path program 1 times [2021-10-24 23:59:54,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:54,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592453423] [2021-10-24 23:59:54,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:54,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 23:59:54,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:54,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592453423] [2021-10-24 23:59:54,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592453423] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:54,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:54,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 23:59:54,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348430081] [2021-10-24 23:59:54,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 23:59:54,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:54,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 23:59:54,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 23:59:54,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,607 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:54,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-10-24 23:59:54,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:54,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 23:59:54,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 23:59:54,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-24 23:59:54,667 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:54,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:54,668 INFO L82 PathProgramCache]: Analyzing trace with hash 556022960, now seen corresponding path program 1 times [2021-10-24 23:59:54,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:54,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926496163] [2021-10-24 23:59:54,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:54,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 23:59:54,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:54,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926496163] [2021-10-24 23:59:54,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926496163] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:54,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:54,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 23:59:54,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876629090] [2021-10-24 23:59:54,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 23:59:54,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:54,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 23:59:54,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 23:59:54,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,720 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:54,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2021-10-24 23:59:54,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:54,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:54,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 23:59:54,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:54,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:54,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:54,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:54,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 23:59:54,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 23:59:54,956 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:54,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:54,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1167244424, now seen corresponding path program 2 times [2021-10-24 23:59:54,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:54,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604473021] [2021-10-24 23:59:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:54,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 23:59:55,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:55,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604473021] [2021-10-24 23:59:55,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604473021] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:55,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:55,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 23:59:55,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330108653] [2021-10-24 23:59:55,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 23:59:55,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:55,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 23:59:55,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 23:59:55,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,017 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:55,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-10-24 23:59:55,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 23:59:55,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,209 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 23:59:55,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-24 23:59:55,218 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/3) [2021-10-24 23:59:55,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-24 23:59:55,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 23:59:55,227 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) [2021-10-24 23:59:55,235 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-24 23:59:55,236 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, mConcurrency=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 [2021-10-24 23:59:55,236 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-24 23:59:55,256 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 [2021-10-24 23:59:55,277 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-24 23:59:55,278 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-24 23:59:55,279 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2021-10-24 23:59:55,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-24 23:59:55,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 23:59:55,308 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-24 23:59:55,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2021-10-24 23:59:55,312 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr2Thread1of1ForFork1 ======== [2021-10-24 23:59:55,312 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, mConcurrency=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 [2021-10-24 23:59:55,312 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 23:59:55,357 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:55,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:55,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1310321780, now seen corresponding path program 1 times [2021-10-24 23:59:55,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:55,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682166864] [2021-10-24 23:59:55,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:55,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 23:59:55,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:55,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682166864] [2021-10-24 23:59:55,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682166864] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:55,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:55,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 23:59:55,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673285814] [2021-10-24 23:59:55,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 23:59:55,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:55,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 23:59:55,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 23:59:55,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,396 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:55,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2021-10-24 23:59:55,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-24 23:59:55,398 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:55,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:55,398 INFO L82 PathProgramCache]: Analyzing trace with hash 431015376, now seen corresponding path program 1 times [2021-10-24 23:59:55,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:55,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034640506] [2021-10-24 23:59:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:55,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 23:59:55,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:55,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034640506] [2021-10-24 23:59:55,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034640506] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:55,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:55,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 23:59:55,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472489801] [2021-10-24 23:59:55,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 23:59:55,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:55,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 23:59:55,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 23:59:55,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,448 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:55,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-10-24 23:59:55,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-24 23:59:55,468 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:55,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1423164097, now seen corresponding path program 1 times [2021-10-24 23:59:55,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:55,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903311977] [2021-10-24 23:59:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:55,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:55,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 23:59:55,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:55,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903311977] [2021-10-24 23:59:55,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903311977] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:55,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:55,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 23:59:55,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324625579] [2021-10-24 23:59:55,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 23:59:55,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:55,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 23:59:55,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 23:59:55,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,522 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:55,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 23:59:55,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-24 23:59:55,595 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:55,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:55,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1842968073, now seen corresponding path program 2 times [2021-10-24 23:59:55,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:55,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611820988] [2021-10-24 23:59:55,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:55,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:55,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 23:59:55,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:55,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611820988] [2021-10-24 23:59:55,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611820988] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:55,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:55,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 23:59:55,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446659362] [2021-10-24 23:59:55,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 23:59:55,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:55,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 23:59:55,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 23:59:55,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,627 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:55,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2021-10-24 23:59:55,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 23:59:55,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-24 23:59:55,667 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:55,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:55,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1546792899, now seen corresponding path program 1 times [2021-10-24 23:59:55,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:55,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104262858] [2021-10-24 23:59:55,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:55,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:55,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 23:59:55,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:55,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104262858] [2021-10-24 23:59:55,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104262858] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:55,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:55,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 23:59:55,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12424535] [2021-10-24 23:59:55,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 23:59:55,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:55,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 23:59:55,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 23:59:55,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,698 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:55,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2021-10-24 23:59:55,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 23:59:55,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-24 23:59:55,748 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:55,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:55,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1846173433, now seen corresponding path program 1 times [2021-10-24 23:59:55,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:55,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740787809] [2021-10-24 23:59:55,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:55,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:55,782 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 23:59:55,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:55,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740787809] [2021-10-24 23:59:55,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740787809] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:55,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:55,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 23:59:55,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041326784] [2021-10-24 23:59:55,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 23:59:55,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:55,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 23:59:55,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 23:59:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,784 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:55,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2021-10-24 23:59:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-24 23:59:55,885 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 23:59:55,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 23:59:55,885 INFO L82 PathProgramCache]: Analyzing trace with hash 672279097, now seen corresponding path program 3 times [2021-10-24 23:59:55,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 23:59:55,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840463925] [2021-10-24 23:59:55,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 23:59:55,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 23:59:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 23:59:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 23:59:55,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 23:59:55,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840463925] [2021-10-24 23:59:55,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840463925] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 23:59:55,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 23:59:55,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 23:59:55,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521202139] [2021-10-24 23:59:55,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 23:59:55,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 23:59:55,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 23:59:55,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 23:59:55,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,930 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 23:59:55,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2021-10-24 23:59:55,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:55,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:55,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:55,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:56,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 23:59:56,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 23:59:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 23:59:56,011 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 23:59:56,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-24 23:59:56,013 INFO L308 ceAbstractionStarter]: Result for error location thr2Thread1of1ForFork1 was SAFE (3/3) [2021-10-24 23:59:56,013 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-24 23:59:56,013 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 23:59:56,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:59:56 BasicIcfg [2021-10-24 23:59:56,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 23:59:56,017 INFO L168 Benchmark]: Toolchain (without parser) took 3409.37 ms. Allocated memory was 182.5 MB in the beginning and 281.0 MB in the end (delta: 98.6 MB). Free memory was 125.4 MB in the beginning and 93.0 MB in the end (delta: 32.4 MB). Peak memory consumption was 131.9 MB. Max. memory is 8.0 GB. [2021-10-24 23:59:56,017 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 182.5 MB. Free memory is still 143.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-24 23:59:56,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.29 ms. Allocated memory was 182.5 MB in the beginning and 281.0 MB in the end (delta: 98.6 MB). Free memory was 155.1 MB in the beginning and 241.5 MB in the end (delta: -86.4 MB). Peak memory consumption was 11.9 MB. Max. memory is 8.0 GB. [2021-10-24 23:59:56,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.88 ms. Allocated memory is still 281.0 MB. Free memory was 241.5 MB in the beginning and 239.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-24 23:59:56,019 INFO L168 Benchmark]: Boogie Preprocessor took 34.76 ms. Allocated memory is still 281.0 MB. Free memory was 239.5 MB in the beginning and 238.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-24 23:59:56,019 INFO L168 Benchmark]: RCFGBuilder took 442.96 ms. Allocated memory is still 281.0 MB. Free memory was 238.1 MB in the beginning and 213.3 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-10-24 23:59:56,019 INFO L168 Benchmark]: TraceAbstraction took 2422.83 ms. Allocated memory is still 281.0 MB. Free memory was 212.9 MB in the beginning and 93.0 MB in the end (delta: 119.9 MB). Peak memory consumption was 120.2 MB. Max. memory is 8.0 GB. [2021-10-24 23:59:56,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 182.5 MB. Free memory is still 143.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 437.29 ms. Allocated memory was 182.5 MB in the beginning and 281.0 MB in the end (delta: 98.6 MB). Free memory was 155.1 MB in the beginning and 241.5 MB in the end (delta: -86.4 MB). Peak memory consumption was 11.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.88 ms. Allocated memory is still 281.0 MB. Free memory was 241.5 MB in the beginning and 239.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.76 ms. Allocated memory is still 281.0 MB. Free memory was 239.5 MB in the beginning and 238.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 442.96 ms. Allocated memory is still 281.0 MB. Free memory was 238.1 MB in the beginning and 213.3 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2422.83 ms. Allocated memory is still 281.0 MB. Free memory was 212.9 MB in the beginning and 93.0 MB in the end (delta: 119.9 MB). Peak memory consumption was 120.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15656, positive: 13514, positive conditional: 10978, positive unconditional: 2536, negative: 2142, negative conditional: 2096, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13728, positive: 13514, positive conditional: 0, positive unconditional: 13514, negative: 214, negative conditional: 0, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2001, positive: 1955, positive conditional: 0, positive unconditional: 1955, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2001, positive: 1950, positive conditional: 0, positive unconditional: 1950, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 125, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13728, positive: 11559, positive conditional: 0, positive unconditional: 11559, negative: 168, negative conditional: 0, negative unconditional: 168, unknown: 2001, unknown conditional: 0, unknown unconditional: 2001] , Statistics on independence cache: Total cache size (in pairs): 2001, Positive cache size: 1955, Positive conditional cache size: 0, Positive unconditional cache size: 1955, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Independence queries for same thread: 1928 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 244, Number of persistent set computation: 728, Number of trivial persistent sets: 648, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15656, positive: 13514, positive conditional: 10978, positive unconditional: 2536, negative: 2142, negative conditional: 2096, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13728, positive: 13514, positive conditional: 0, positive unconditional: 13514, negative: 214, negative conditional: 0, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2001, positive: 1955, positive conditional: 0, positive unconditional: 1955, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2001, positive: 1950, positive conditional: 0, positive unconditional: 1950, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 125, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13728, positive: 11559, positive conditional: 0, positive unconditional: 11559, negative: 168, negative conditional: 0, negative unconditional: 168, unknown: 2001, unknown conditional: 0, unknown unconditional: 2001] , Statistics on independence cache: Total cache size (in pairs): 2001, Positive cache size: 1955, Positive conditional cache size: 0, Positive unconditional cache size: 1955, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Independence queries for same thread: 1928 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 923, positive: 902, positive conditional: 45, positive unconditional: 857, negative: 21, negative conditional: 12, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 911, positive: 902, positive conditional: 0, positive unconditional: 902, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 795, positive: 786, positive conditional: 0, positive unconditional: 786, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 795, positive: 786, positive conditional: 0, positive unconditional: 786, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 30, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 911, positive: 116, positive conditional: 0, positive unconditional: 116, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 795, unknown conditional: 0, unknown unconditional: 795] , Statistics on independence cache: Total cache size (in pairs): 795, Positive cache size: 786, Positive conditional cache size: 0, Positive unconditional cache size: 786, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Independence queries for same thread: 12 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 36, Number of persistent set computation: 59, Number of trivial persistent sets: 48, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 923, positive: 902, positive conditional: 45, positive unconditional: 857, negative: 21, negative conditional: 12, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 911, positive: 902, positive conditional: 0, positive unconditional: 902, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 795, positive: 786, positive conditional: 0, positive unconditional: 786, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 795, positive: 786, positive conditional: 0, positive unconditional: 786, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 30, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 911, positive: 116, positive conditional: 0, positive unconditional: 116, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 795, unknown conditional: 0, unknown unconditional: 795] , Statistics on independence cache: Total cache size (in pairs): 795, Positive cache size: 786, Positive conditional cache size: 0, Positive unconditional cache size: 786, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Independence queries for same thread: 12 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 20365, positive: 17744, positive conditional: 15156, positive unconditional: 2588, negative: 2621, negative conditional: 2576, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18094, positive: 17744, positive conditional: 0, positive unconditional: 17744, negative: 350, negative conditional: 0, negative unconditional: 350, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2100, positive: 2055, positive conditional: 0, positive unconditional: 2055, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2100, positive: 2051, positive conditional: 0, positive unconditional: 2051, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18094, positive: 15689, positive conditional: 0, positive unconditional: 15689, negative: 305, negative conditional: 0, negative unconditional: 305, unknown: 2100, unknown conditional: 0, unknown unconditional: 2100] , Statistics on independence cache: Total cache size (in pairs): 2100, Positive cache size: 2055, Positive conditional cache size: 0, Positive unconditional cache size: 2055, Negative cache size: 45, Negative conditional cache size: 0, Negative unconditional cache size: 45, Independence queries for same thread: 2271 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 115, Number of persistent set computation: 816, Number of trivial persistent sets: 740, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 20365, positive: 17744, positive conditional: 15156, positive unconditional: 2588, negative: 2621, negative conditional: 2576, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18094, positive: 17744, positive conditional: 0, positive unconditional: 17744, negative: 350, negative conditional: 0, negative unconditional: 350, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2100, positive: 2055, positive conditional: 0, positive unconditional: 2055, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2100, positive: 2051, positive conditional: 0, positive unconditional: 2051, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18094, positive: 15689, positive conditional: 0, positive unconditional: 15689, negative: 305, negative conditional: 0, negative unconditional: 305, unknown: 2100, unknown conditional: 0, unknown unconditional: 2100] , Statistics on independence cache: Total cache size (in pairs): 2100, Positive cache size: 2055, Positive conditional cache size: 0, Positive unconditional cache size: 2055, Negative cache size: 45, Negative conditional cache size: 0, Negative unconditional cache size: 45, Independence queries for same thread: 2271 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 739]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 780]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 132 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1496.6ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.9ms, PartialOrderReductionTime: 803.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.2ms SsaConstructionTime, 79.1ms SatisfiabilityAnalysisTime, 353.8ms InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 132 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 58.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.6ms, PartialOrderReductionTime: 39.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 132 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 733.0ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.7ms, PartialOrderReductionTime: 405.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.6ms SsaConstructionTime, 37.9ms SatisfiabilityAnalysisTime, 181.6ms InterpolantComputationTime, 385 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 532 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-24 23:59:56,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Forceful destruction successful, exit code 0 [2021-10-24 23:59:56,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Ended with exit code 0 [2021-10-24 23:59:56,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-24 23:59:56,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...