/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 08:30:19,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 08:30:19,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 08:30:19,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 08:30:20,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 08:30:20,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 08:30:20,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 08:30:20,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 08:30:20,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 08:30:20,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 08:30:20,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 08:30:20,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 08:30:20,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 08:30:20,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 08:30:20,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 08:30:20,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 08:30:20,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 08:30:20,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 08:30:20,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 08:30:20,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 08:30:20,046 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-FA-NoLbe-Separate.epf [2021-06-05 08:30:20,080 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 08:30:20,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 08:30:20,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 08:30:20,081 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 08:30:20,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 08:30:20,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 08:30:20,083 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 08:30:20,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 08:30:20,084 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 08:30:20,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 08:30:20,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 08:30:20,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 08:30:20,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 08:30:20,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 08:30:20,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 08:30:20,085 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 08:30:20,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 08:30:20,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 08:30:20,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 08:30:20,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 08:30:20,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 08:30:20,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 08:30:20,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 08:30:20,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 08:30:20,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 08:30:20,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 08:30:20,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 08:30:20,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 08:30:20,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 08:30:20,087 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 08:30:20,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 08:30:20,087 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 08:30:20,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 08:30:20,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 08:30:20,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 08:30:20,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 08:30:20,380 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 08:30:20,380 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 08:30:20,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-06-05 08:30:20,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f748a71c3/c24f99eb9da8435e8bb76e4242e3cbef/FLAGca9f7f696 [2021-06-05 08:30:20,915 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 08:30:20,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-06-05 08:30:20,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f748a71c3/c24f99eb9da8435e8bb76e4242e3cbef/FLAGca9f7f696 [2021-06-05 08:30:20,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f748a71c3/c24f99eb9da8435e8bb76e4242e3cbef [2021-06-05 08:30:20,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 08:30:20,960 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 08:30:20,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 08:30:20,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 08:30:20,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 08:30:20,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:30:20" (1/1) ... [2021-06-05 08:30:20,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47986d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:20, skipping insertion in model container [2021-06-05 08:30:20,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:30:20" (1/1) ... [2021-06-05 08:30:20,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 08:30:21,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 08:30:21,190 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 08:30:21,365 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2021-06-05 08:30:21,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 08:30:21,380 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 08:30:21,406 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 08:30:21,433 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2021-06-05 08:30:21,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 08:30:21,503 INFO L208 MainTranslator]: Completed translation [2021-06-05 08:30:21,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21 WrapperNode [2021-06-05 08:30:21,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 08:30:21,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 08:30:21,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 08:30:21,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 08:30:21,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21" (1/1) ... [2021-06-05 08:30:21,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21" (1/1) ... [2021-06-05 08:30:21,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 08:30:21,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 08:30:21,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 08:30:21,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 08:30:21,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21" (1/1) ... [2021-06-05 08:30:21,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21" (1/1) ... [2021-06-05 08:30:21,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21" (1/1) ... [2021-06-05 08:30:21,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21" (1/1) ... [2021-06-05 08:30:21,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21" (1/1) ... [2021-06-05 08:30:21,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21" (1/1) ... [2021-06-05 08:30:21,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21" (1/1) ... [2021-06-05 08:30:21,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 08:30:21,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 08:30:21,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 08:30:21,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 08:30:21,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21" (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 [2021-06-05 08:30:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-05 08:30:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-05 08:30:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 08:30:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 08:30:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 08:30:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 08:30:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 08:30:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 08:30:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 08:30:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 08:30:21,680 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 08:30:22,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 08:30:22,167 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-05 08:30:22,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:30:22 BoogieIcfgContainer [2021-06-05 08:30:22,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 08:30:22,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 08:30:22,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 08:30:22,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 08:30:22,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:30:20" (1/3) ... [2021-06-05 08:30:22,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0d7ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:30:22, skipping insertion in model container [2021-06-05 08:30:22,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:30:21" (2/3) ... [2021-06-05 08:30:22,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0d7ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:30:22, skipping insertion in model container [2021-06-05 08:30:22,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:30:22" (3/3) ... [2021-06-05 08:30:22,176 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2021-06-05 08:30:22,181 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 08:30:22,181 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 08:30:22,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 08:30:22,182 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 08:30:22,198 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,198 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,199 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,199 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,199 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,199 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:30:22,205 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 08:30:22,223 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 08:30:22,239 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 08:30:22,239 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 08:30:22,239 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 08:30:22,239 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 08:30:22,239 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 08:30:22,239 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 08:30:22,239 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 08:30:22,239 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 08:30:22,247 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 51 transitions, 107 flow [2021-06-05 08:30:22,265 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 200 states, 198 states have (on average 1.797979797979798) internal successors, (356), 199 states have internal predecessors, (356), 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) [2021-06-05 08:30:22,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 198 states have (on average 1.797979797979798) internal successors, (356), 199 states have internal predecessors, (356), 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) [2021-06-05 08:30:22,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 08:30:22,274 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:30:22,275 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:30:22,275 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:30:22,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:30:22,279 INFO L82 PathProgramCache]: Analyzing trace with hash 180770886, now seen corresponding path program 1 times [2021-06-05 08:30:22,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:30:22,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624307550] [2021-06-05 08:30:22,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:30:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:30:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:30:22,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:30:22,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624307550] [2021-06-05 08:30:22,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624307550] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:30:22,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:30:22,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 08:30:22,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656898932] [2021-06-05 08:30:22,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 08:30:22,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:30:22,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 08:30:22,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 08:30:22,529 INFO L87 Difference]: Start difference. First operand has 200 states, 198 states have (on average 1.797979797979798) internal successors, (356), 199 states have internal predecessors, (356), 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) Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-06-05 08:30:22,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:30:22,631 INFO L93 Difference]: Finished difference Result 251 states and 432 transitions. [2021-06-05 08:30:22,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 08:30:22,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) Word has length 31 [2021-06-05 08:30:22,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:30:22,642 INFO L225 Difference]: With dead ends: 251 [2021-06-05 08:30:22,642 INFO L226 Difference]: Without dead ends: 75 [2021-06-05 08:30:22,644 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 08:30:22,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-06-05 08:30:22,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-06-05 08:30:22,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 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) [2021-06-05 08:30:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2021-06-05 08:30:22,683 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 31 [2021-06-05 08:30:22,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:30:22,684 INFO L482 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-06-05 08:30:22,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-06-05 08:30:22,684 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2021-06-05 08:30:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 08:30:22,685 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:30:22,685 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:30:22,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 08:30:22,686 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:30:22,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:30:22,687 INFO L82 PathProgramCache]: Analyzing trace with hash 410451431, now seen corresponding path program 1 times [2021-06-05 08:30:22,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:30:22,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723965530] [2021-06-05 08:30:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:30:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:30:22,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:30:22,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:30:22,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723965530] [2021-06-05 08:30:22,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723965530] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:30:22,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:30:22,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 08:30:22,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995880730] [2021-06-05 08:30:22,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 08:30:22,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:30:22,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 08:30:22,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 08:30:22,774 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:30:22,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:30:22,781 INFO L93 Difference]: Finished difference Result 75 states and 110 transitions. [2021-06-05 08:30:22,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 08:30:22,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-06-05 08:30:22,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:30:22,782 INFO L225 Difference]: With dead ends: 75 [2021-06-05 08:30:22,782 INFO L226 Difference]: Without dead ends: 68 [2021-06-05 08:30:22,783 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 08:30:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-06-05 08:30:22,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-06-05 08:30:22,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.4477611940298507) internal successors, (97), 67 states have internal predecessors, (97), 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) [2021-06-05 08:30:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 97 transitions. [2021-06-05 08:30:22,789 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 97 transitions. Word has length 34 [2021-06-05 08:30:22,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:30:22,789 INFO L482 AbstractCegarLoop]: Abstraction has 68 states and 97 transitions. [2021-06-05 08:30:22,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:30:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 97 transitions. [2021-06-05 08:30:22,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 08:30:22,790 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:30:22,790 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:30:22,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 08:30:22,791 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:30:22,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:30:22,791 INFO L82 PathProgramCache]: Analyzing trace with hash -778223727, now seen corresponding path program 2 times [2021-06-05 08:30:22,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:30:22,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205087434] [2021-06-05 08:30:22,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:30:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:30:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:30:22,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:30:22,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205087434] [2021-06-05 08:30:22,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205087434] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:30:22,859 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:30:22,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 08:30:22,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499946997] [2021-06-05 08:30:22,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 08:30:22,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:30:22,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 08:30:22,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 08:30:22,861 INFO L87 Difference]: Start difference. First operand 68 states and 97 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:30:22,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:30:22,865 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2021-06-05 08:30:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 08:30:22,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-06-05 08:30:22,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:30:22,866 INFO L225 Difference]: With dead ends: 40 [2021-06-05 08:30:22,866 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 08:30:22,866 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 08:30:22,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 08:30:22,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 08:30:22,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 08:30:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 08:30:22,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2021-06-05 08:30:22,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:30:22,867 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 08:30:22,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:30:22,868 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 08:30:22,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 08:30:22,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 08:30:22,869 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 08:30:22,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:30:22 BasicIcfg [2021-06-05 08:30:22,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 08:30:22,873 INFO L168 Benchmark]: Toolchain (without parser) took 1912.01 ms. Allocated memory is still 348.1 MB. Free memory was 310.9 MB in the beginning and 220.4 MB in the end (delta: 90.6 MB). Peak memory consumption was 91.6 MB. Max. memory is 16.0 GB. [2021-06-05 08:30:22,873 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 348.1 MB. Free memory was 329.1 MB in the beginning and 329.1 MB in the end (delta: 70.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 08:30:22,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.58 ms. Allocated memory is still 348.1 MB. Free memory was 310.7 MB in the beginning and 310.5 MB in the end (delta: 176.2 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 08:30:22,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 348.1 MB. Free memory was 310.5 MB in the beginning and 309.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 08:30:22,874 INFO L168 Benchmark]: Boogie Preprocessor took 33.28 ms. Allocated memory is still 348.1 MB. Free memory was 309.5 MB in the beginning and 307.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 08:30:22,875 INFO L168 Benchmark]: RCFGBuilder took 572.38 ms. Allocated memory is still 348.1 MB. Free memory was 307.4 MB in the beginning and 277.0 MB in the end (delta: 30.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-06-05 08:30:22,875 INFO L168 Benchmark]: TraceAbstraction took 701.29 ms. Allocated memory is still 348.1 MB. Free memory was 275.9 MB in the beginning and 220.4 MB in the end (delta: 55.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.0 GB. [2021-06-05 08:30:22,878 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 348.1 MB. Free memory was 329.1 MB in the beginning and 329.1 MB in the end (delta: 70.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 542.58 ms. Allocated memory is still 348.1 MB. Free memory was 310.7 MB in the beginning and 310.5 MB in the end (delta: 176.2 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 348.1 MB. Free memory was 310.5 MB in the beginning and 309.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.28 ms. Allocated memory is still 348.1 MB. Free memory was 309.5 MB in the beginning and 307.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 572.38 ms. Allocated memory is still 348.1 MB. Free memory was 307.4 MB in the beginning and 277.0 MB in the end (delta: 30.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 701.29 ms. Allocated memory is still 348.1 MB. Free memory was 275.9 MB in the beginning and 220.4 MB in the end (delta: 55.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 738]: 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 with 1 thread instances CFG has 3 procedures, 59 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 631.8ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 10.9ms, AutomataDifference: 145.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 25.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 143 SDtfs, 95 SDslu, 264 SDs, 0 SdLazy, 51 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 34.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.6ms SsaConstructionTime, 63.5ms SatisfiabilityAnalysisTime, 220.3ms InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...