/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-18 06:15:53,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-18 06:15:53,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-18 06:15:54,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-18 06:15:54,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-18 06:15:54,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-18 06:15:54,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-18 06:15:54,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-18 06:15:54,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-18 06:15:54,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-18 06:15:54,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-18 06:15:54,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-18 06:15:54,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-18 06:15:54,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-18 06:15:54,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-18 06:15:54,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-18 06:15:54,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-18 06:15:54,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-18 06:15:54,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-18 06:15:54,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-18 06:15:54,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-18 06:15:54,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-18 06:15:54,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-18 06:15:54,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-18 06:15:54,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-18 06:15:54,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-18 06:15:54,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-18 06:15:54,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-18 06:15:54,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-18 06:15:54,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-18 06:15:54,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-18 06:15:54,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-18 06:15:54,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-18 06:15:54,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-18 06:15:54,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-18 06:15:54,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-18 06:15:54,135 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-Sleep-NoLbe-New_States.epf [2020-12-18 06:15:54,163 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-18 06:15:54,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-18 06:15:54,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-18 06:15:54,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-18 06:15:54,165 INFO L138 SettingsManager]: * Use SBE=true [2020-12-18 06:15:54,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-18 06:15:54,165 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-18 06:15:54,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-18 06:15:54,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-18 06:15:54,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-18 06:15:54,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-18 06:15:54,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-18 06:15:54,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-18 06:15:54,167 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-18 06:15:54,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-18 06:15:54,167 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-18 06:15:54,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-18 06:15:54,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-18 06:15:54,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-18 06:15:54,168 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-18 06:15:54,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-18 06:15:54,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-18 06:15:54,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-18 06:15:54,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-18 06:15:54,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-18 06:15:54,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-18 06:15:54,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-18 06:15:54,170 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-18 06:15:54,170 INFO L138 SettingsManager]: * Lazy Petri-NFA conversion=true [2020-12-18 06:15:54,171 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=SLEEP_SET_FA [2020-12-18 06:15:54,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-18 06:15:54,171 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-18 06:15:54,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-18 06:15:54,171 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-18 06:15:54,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-18 06:15:54,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-18 06:15:54,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-18 06:15:54,626 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-18 06:15:54,626 INFO L275 PluginConnector]: CDTParser initialized [2020-12-18 06:15:54,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2020-12-18 06:15:54,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3807de624/049a2d7ccea2499ca83ef0a928eb1486/FLAG9c1ecccaa [2020-12-18 06:15:55,464 INFO L306 CDTParser]: Found 1 translation units. [2020-12-18 06:15:55,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2020-12-18 06:15:55,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3807de624/049a2d7ccea2499ca83ef0a928eb1486/FLAG9c1ecccaa [2020-12-18 06:15:55,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3807de624/049a2d7ccea2499ca83ef0a928eb1486 [2020-12-18 06:15:55,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-18 06:15:55,685 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-18 06:15:55,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-18 06:15:55,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-18 06:15:55,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-18 06:15:55,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:15:55" (1/1) ... [2020-12-18 06:15:55,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca63979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:55, skipping insertion in model container [2020-12-18 06:15:55,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:15:55" (1/1) ... [2020-12-18 06:15:55,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-18 06:15:55,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-18 06:15:55,939 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-18 06:15:56,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 06:15:56,183 INFO L203 MainTranslator]: Completed pre-run [2020-12-18 06:15:56,220 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-18 06:15:56,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 06:15:56,417 INFO L208 MainTranslator]: Completed translation [2020-12-18 06:15:56,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56 WrapperNode [2020-12-18 06:15:56,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-18 06:15:56,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-18 06:15:56,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-18 06:15:56,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-18 06:15:56,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56" (1/1) ... [2020-12-18 06:15:56,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56" (1/1) ... [2020-12-18 06:15:56,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-18 06:15:56,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-18 06:15:56,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-18 06:15:56,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-18 06:15:56,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56" (1/1) ... [2020-12-18 06:15:56,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56" (1/1) ... [2020-12-18 06:15:56,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56" (1/1) ... [2020-12-18 06:15:56,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56" (1/1) ... [2020-12-18 06:15:56,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56" (1/1) ... [2020-12-18 06:15:56,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56" (1/1) ... [2020-12-18 06:15:56,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56" (1/1) ... [2020-12-18 06:15:56,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-18 06:15:56,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-18 06:15:56,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-18 06:15:56,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-18 06:15:56,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-18 06:15:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-18 06:15:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-12-18 06:15:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-12-18 06:15:56,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-18 06:15:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-18 06:15:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-18 06:15:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-18 06:15:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-18 06:15:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-18 06:15:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-18 06:15:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-18 06:15:56,670 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-18 06:15:57,401 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-18 06:15:57,402 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-18 06:15:57,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:15:57 BoogieIcfgContainer [2020-12-18 06:15:57,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-18 06:15:57,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-18 06:15:57,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-18 06:15:57,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-18 06:15:57,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:15:55" (1/3) ... [2020-12-18 06:15:57,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eb8780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:15:57, skipping insertion in model container [2020-12-18 06:15:57,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:15:56" (2/3) ... [2020-12-18 06:15:57,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eb8780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:15:57, skipping insertion in model container [2020-12-18 06:15:57,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:15:57" (3/3) ... [2020-12-18 06:15:57,414 INFO L111 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs.i [2020-12-18 06:15:57,430 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-18 06:15:57,430 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-18 06:15:57,434 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-18 06:15:57,435 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-18 06:15:57,466 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,466 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,466 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,467 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,467 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,467 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,467 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,468 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,470 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,470 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,483 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,483 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 06:15:57,490 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-18 06:15:57,504 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-18 06:15:57,531 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-18 06:15:57,531 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-18 06:15:57,531 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-18 06:15:57,531 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-18 06:15:57,532 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-18 06:15:57,532 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-18 06:15:57,532 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-18 06:15:57,532 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-18 06:15:58,282 WARN L465 BasicCegarLoop]: Sleep Set Reduction Time: 729ms [2020-12-18 06:15:58,283 WARN L466 BasicCegarLoop]: Sleep set: input automaton currently 731 states, but on-demand construction may add more states [2020-12-18 06:15:58,289 WARN L467 BasicCegarLoop]: Sleep set: output automaton has 731 states, 670 states have (on average 1.5880597014925373) internal successors, (1064), 730 states have internal predecessors, (1064), 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) Size of Word is: 26 and size of Sequence is : 27[2020-12-18 06:15:58,324 INFO L131 SleepSetCegar]: Size of mCounterexample is: 27 [2020-12-18 06:15:58,324 INFO L132 SleepSetCegar]: [75#[ULTIMATE.startENTRY]don't care, 78#[L-1]don't care, 81#[L-1-1]don't care, 84#[L19]don't care, 87#[L19-1]don't care, 90#[L19-2]don't care, 93#[L19-3]don't care, 96#[L19-4]don't care, 99#[L706]don't care, 102#[L713]don't care, 105#[L-1-2]don't care, 108#[L-1-3]don't care, 111#[L724]don't care, 114#[L725-7]don't care, 117#[L725-8]don't care, 123#[L726]don't care, 126#[L726-1]don't care, 129#[L714]don't care, 132#[L716]don't care, 135#[L716-1]don't care, 138#[L717-7]don't care, 141#[L717-8]don't care, 144#[L718]don't care, 149#[L718-1]don't care, 153#[L19-5]don't care, 156#[L19-7]don't care, 201#[ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]don't care] [2020-12-18 06:15:58,325 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 06:15:58,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 06:15:58,331 INFO L82 PathProgramCache]: Analyzing trace with hash -350518922, now seen corresponding path program 1 times [2020-12-18 06:15:58,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 06:15:58,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088618688] [2020-12-18 06:15:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 06:15:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 06:15:58,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 06:15:58,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088618688] [2020-12-18 06:15:58,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 06:15:58,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-18 06:15:58,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771609270] [2020-12-18 06:15:58,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-18 06:15:58,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 06:15:58,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-18 06:15:58,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-18 06:15:58,554 INFO L481 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2020-12-18 06:15:58,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) Size of Word is: 28 and size of Sequence is : 29[2020-12-18 06:15:58,619 INFO L131 SleepSetCegar]: Size of mCounterexample is: 29 [2020-12-18 06:15:58,620 INFO L132 SleepSetCegar]: [4642#[ULTIMATE.startENTRY]true, 4644#[L-1]true, 4646#[L-1-1]true, 4648#[L19]true, 4650#[L19-1]true, 4652#[L19-2]true, 4654#[L19-3]true, 4656#[L19-4]true, 4658#[L706]true, 4660#[L713]true, 4662#[L-1-2]true, 4664#[L-1-3]true, 4666#[L724]true, 4668#[L725-7]true, 4671#[L725]true, 4755#[L725-1]true, 4759#[L725-8]true, 4761#[L726]true, 4763#[L726-1]true, 4765#[L714]true, 4767#[L716]true, 4769#[L716-1]true, 4771#[L717-7]true, 4773#[L717-8]true, 4775#[L718]true, 4777#[L718-1]true, 4781#[L19-5]true, 4783#[L19-7]true, 4799#[ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]true] [2020-12-18 06:15:58,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-18 06:15:58,620 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 06:15:58,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 06:15:58,621 INFO L82 PathProgramCache]: Analyzing trace with hash -782709695, now seen corresponding path program 1 times [2020-12-18 06:15:58,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 06:15:58,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265014216] [2020-12-18 06:15:58,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 06:15:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 06:15:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 06:15:58,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265014216] [2020-12-18 06:15:58,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 06:15:58,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-18 06:15:58,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063455185] [2020-12-18 06:15:58,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-18 06:15:58,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 06:15:58,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-18 06:15:58,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-18 06:15:58,761 INFO L481 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2020-12-18 06:15:58,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2020-12-18 06:15:58,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-18 06:15:58,776 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker@536defee at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:81) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.checkImplication(TransFormulaUtils.java:1201) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.independencerelation.SemanticIndependenceRelation.performInclusionCheck(SemanticIndependenceRelation.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.independencerelation.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.independencerelation.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.lambda$2(UnionIndependenceRelation.java:62) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:528) at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.contains(UnionIndependenceRelation.java:62) at de.uni_freiburg.informatik.ultimate.automata.partialorder.CachedIndependenceRelation.contains(CachedIndependenceRelation.java:96) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.lambda$0(SleepSetNewStateReduction.java:129) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:176) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.search(SleepSetNewStateReduction.java:130) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.(SleepSetNewStateReduction.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.SleepSetCegar.isAbstractionEmpty(SleepSetCegar.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:378) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-18 06:15:58,782 INFO L168 Benchmark]: Toolchain (without parser) took 3095.72 ms. Allocated memory is still 318.8 MB. Free memory was 293.2 MB in the beginning and 145.5 MB in the end (delta: 147.6 MB). Peak memory consumption was 149.6 MB. Max. memory is 16.0 GB. [2020-12-18 06:15:58,783 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 318.8 MB. Free memory was 289.7 MB in the beginning and 289.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 06:15:58,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.44 ms. Allocated memory is still 318.8 MB. Free memory was 293.0 MB in the beginning and 294.4 MB in the end (delta: -1.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.0 GB. [2020-12-18 06:15:58,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.15 ms. Allocated memory is still 318.8 MB. Free memory was 294.4 MB in the beginning and 292.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-18 06:15:58,785 INFO L168 Benchmark]: Boogie Preprocessor took 57.96 ms. Allocated memory is still 318.8 MB. Free memory was 292.3 MB in the beginning and 291.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 06:15:58,786 INFO L168 Benchmark]: RCFGBuilder took 824.51 ms. Allocated memory is still 318.8 MB. Free memory was 291.3 MB in the beginning and 246.2 MB in the end (delta: 45.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.0 GB. [2020-12-18 06:15:58,787 INFO L168 Benchmark]: TraceAbstraction took 1372.88 ms. Allocated memory is still 318.8 MB. Free memory was 246.2 MB in the beginning and 145.5 MB in the end (delta: 100.7 MB). Peak memory consumption was 100.7 MB. Max. memory is 16.0 GB. [2020-12-18 06:15:58,791 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 318.8 MB. Free memory was 289.7 MB in the beginning and 289.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 732.44 ms. Allocated memory is still 318.8 MB. Free memory was 293.0 MB in the beginning and 294.4 MB in the end (delta: -1.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 94.15 ms. Allocated memory is still 318.8 MB. Free memory was 294.4 MB in the beginning and 292.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 57.96 ms. Allocated memory is still 318.8 MB. Free memory was 292.3 MB in the beginning and 291.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 824.51 ms. Allocated memory is still 318.8 MB. Free memory was 291.3 MB in the beginning and 246.2 MB in the end (delta: 45.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1372.88 ms. Allocated memory is still 318.8 MB. Free memory was 246.2 MB in the beginning and 145.5 MB in the end (delta: 100.7 MB). Peak memory consumption was 100.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker@536defee de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker@536defee: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:81) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...