/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 16:25:19,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 16:25:19,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 16:25:19,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 16:25:19,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 16:25:19,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 16:25:19,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 16:25:19,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 16:25:19,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 16:25:19,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 16:25:19,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 16:25:19,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 16:25:19,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 16:25:19,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 16:25:19,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 16:25:19,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 16:25:19,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 16:25:19,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 16:25:19,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 16:25:19,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 16:25:19,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 16:25:19,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 16:25:19,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 16:25:19,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 16:25:19,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 16:25:19,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 16:25:19,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 16:25:19,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 16:25:19,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 16:25:19,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 16:25:19,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 16:25:19,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 16:25:19,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 16:25:19,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 16:25:19,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 16:25:19,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 16:25:19,353 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 16:25:19,390 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 16:25:19,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 16:25:19,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 16:25:19,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 16:25:19,393 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 16:25:19,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 16:25:19,393 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 16:25:19,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 16:25:19,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 16:25:19,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 16:25:19,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 16:25:19,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 16:25:19,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 16:25:19,395 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 16:25:19,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 16:25:19,396 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 16:25:19,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 16:25:19,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 16:25:19,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 16:25:19,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 16:25:19,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 16:25:19,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 16:25:19,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 16:25:19,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 16:25:19,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 16:25:19,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 16:25:19,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 16:25:19,399 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 16:25:19,399 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 16:25:19,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 16:25:19,400 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 16:25:19,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 16:25:19,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 16:25:19,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 16:25:19,818 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 16:25:19,819 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 16:25:19,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-11-09 16:25:19,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d56a61f0e/c391aa877bd3428b8de863a43ca167a1/FLAG084ccf056 [2020-11-09 16:25:20,592 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 16:25:20,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-11-09 16:25:20,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d56a61f0e/c391aa877bd3428b8de863a43ca167a1/FLAG084ccf056 [2020-11-09 16:25:20,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d56a61f0e/c391aa877bd3428b8de863a43ca167a1 [2020-11-09 16:25:20,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 16:25:20,890 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 16:25:20,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 16:25:20,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 16:25:20,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 16:25:20,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:25:20" (1/1) ... [2020-11-09 16:25:20,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93abb2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:20, skipping insertion in model container [2020-11-09 16:25:20,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:25:20" (1/1) ... [2020-11-09 16:25:20,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 16:25:20,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 16:25:21,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 16:25:21,425 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 16:25:21,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 16:25:21,676 INFO L208 MainTranslator]: Completed translation [2020-11-09 16:25:21,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21 WrapperNode [2020-11-09 16:25:21,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 16:25:21,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 16:25:21,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 16:25:21,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 16:25:21,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21" (1/1) ... [2020-11-09 16:25:21,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21" (1/1) ... [2020-11-09 16:25:21,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 16:25:21,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 16:25:21,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 16:25:21,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 16:25:21,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21" (1/1) ... [2020-11-09 16:25:21,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21" (1/1) ... [2020-11-09 16:25:21,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21" (1/1) ... [2020-11-09 16:25:21,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21" (1/1) ... [2020-11-09 16:25:21,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21" (1/1) ... [2020-11-09 16:25:21,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21" (1/1) ... [2020-11-09 16:25:21,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21" (1/1) ... [2020-11-09 16:25:21,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 16:25:21,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 16:25:21,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 16:25:21,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 16:25:21,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21" (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 [2020-11-09 16:25:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 16:25:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-09 16:25:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-09 16:25:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 16:25:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 16:25:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 16:25:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 16:25:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 16:25:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 16:25:21,868 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 16:25:23,115 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 16:25:23,115 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 16:25:23,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:25:23 BoogieIcfgContainer [2020-11-09 16:25:23,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 16:25:23,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 16:25:23,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 16:25:23,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 16:25:23,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:25:20" (1/3) ... [2020-11-09 16:25:23,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492a992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:25:23, skipping insertion in model container [2020-11-09 16:25:23,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:25:21" (2/3) ... [2020-11-09 16:25:23,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492a992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:25:23, skipping insertion in model container [2020-11-09 16:25:23,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:25:23" (3/3) ... [2020-11-09 16:25:23,126 INFO L111 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2020-11-09 16:25:23,142 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 16:25:23,143 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 16:25:23,147 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-09 16:25:23,148 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 16:25:23,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,180 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,180 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,182 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,182 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,182 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,183 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,183 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,183 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,184 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,184 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,185 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,185 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,185 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,185 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,185 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,187 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,187 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,187 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,188 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,188 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,188 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,188 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,189 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,189 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,189 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,192 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,192 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,196 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,198 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,198 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,199 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,199 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:25:23,206 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 16:25:23,218 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 16:25:23,241 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 16:25:23,241 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 16:25:23,241 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 16:25:23,241 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 16:25:23,241 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 16:25:23,242 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 16:25:23,242 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 16:25:23,242 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 16:25:23,255 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 16:25:23,255 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 68 transitions, 141 flow [2020-11-09 16:25:23,259 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 68 transitions, 141 flow [2020-11-09 16:25:23,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 68 transitions, 141 flow [2020-11-09 16:25:23,298 INFO L129 PetriNetUnfolder]: 6/67 cut-off events. [2020-11-09 16:25:23,299 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 16:25:23,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 67 events. 6/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 97 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 48. Up to 3 conditions per place. [2020-11-09 16:25:23,310 INFO L116 LiptonReduction]: Number of co-enabled transitions 1134 [2020-11-09 16:25:23,553 WARN L194 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-11-09 16:25:23,791 WARN L194 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-11-09 16:25:23,929 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-11-09 16:25:24,123 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-11-09 16:25:24,248 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-11-09 16:25:24,361 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2020-11-09 16:25:24,561 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2020-11-09 16:25:24,677 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-11-09 16:25:24,785 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-11-09 16:25:24,990 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-11-09 16:25:25,110 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-11-09 16:25:25,266 WARN L194 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2020-11-09 16:25:26,936 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-11-09 16:25:27,127 WARN L194 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-11-09 16:25:27,618 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2020-11-09 16:25:27,747 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-11-09 16:25:27,934 WARN L194 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-11-09 16:25:28,455 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-11-09 16:25:28,625 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-11-09 16:25:28,816 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-11-09 16:25:28,929 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-11-09 16:25:29,059 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-11-09 16:25:29,167 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-11-09 16:25:29,793 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-11-09 16:25:29,930 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-11-09 16:25:30,072 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-11-09 16:25:30,469 WARN L194 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-11-09 16:25:30,642 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-09 16:25:31,064 WARN L194 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-11-09 16:25:31,230 WARN L194 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-09 16:25:32,109 WARN L194 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-11-09 16:25:32,332 WARN L194 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-09 16:25:32,845 WARN L194 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-11-09 16:25:33,090 WARN L194 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-09 16:25:33,108 INFO L131 LiptonReduction]: Checked pairs total: 3191 [2020-11-09 16:25:33,109 INFO L133 LiptonReduction]: Total number of compositions: 62 [2020-11-09 16:25:33,118 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 25 transitions, 55 flow [2020-11-09 16:25:33,135 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 82 states. [2020-11-09 16:25:33,138 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2020-11-09 16:25:33,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-09 16:25:33,144 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:25:33,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-09 16:25:33,145 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:25:33,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:25:33,152 INFO L82 PathProgramCache]: Analyzing trace with hash 461951413, now seen corresponding path program 1 times [2020-11-09 16:25:33,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:25:33,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932047484] [2020-11-09 16:25:33,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:25:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:25:33,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:25:33,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932047484] [2020-11-09 16:25:33,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:25:33,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 16:25:33,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [452738461] [2020-11-09 16:25:33,380 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:25:33,386 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:25:33,400 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-11-09 16:25:33,400 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:25:33,406 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:25:33,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 16:25:33,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:25:33,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 16:25:33,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:25:33,432 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 3 states. [2020-11-09 16:25:33,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:25:33,460 INFO L93 Difference]: Finished difference Result 82 states and 154 transitions. [2020-11-09 16:25:33,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 16:25:33,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-09 16:25:33,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:25:33,475 INFO L225 Difference]: With dead ends: 82 [2020-11-09 16:25:33,475 INFO L226 Difference]: Without dead ends: 73 [2020-11-09 16:25:33,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:25:33,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-09 16:25:33,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-09 16:25:33,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-09 16:25:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 133 transitions. [2020-11-09 16:25:33,540 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 133 transitions. Word has length 5 [2020-11-09 16:25:33,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:25:33,540 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 133 transitions. [2020-11-09 16:25:33,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 16:25:33,541 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 133 transitions. [2020-11-09 16:25:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 16:25:33,542 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:25:33,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 16:25:33,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 16:25:33,543 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:25:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:25:33,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1435959724, now seen corresponding path program 1 times [2020-11-09 16:25:33,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:25:33,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988087105] [2020-11-09 16:25:33,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:25:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:25:33,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:25:33,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988087105] [2020-11-09 16:25:33,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:25:33,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 16:25:33,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1845929028] [2020-11-09 16:25:33,670 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:25:33,671 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:25:33,673 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-11-09 16:25:33,673 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:25:33,674 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:25:33,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 16:25:33,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:25:33,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 16:25:33,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:25:33,677 INFO L87 Difference]: Start difference. First operand 73 states and 133 transitions. Second operand 3 states. [2020-11-09 16:25:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:25:33,731 INFO L93 Difference]: Finished difference Result 72 states and 122 transitions. [2020-11-09 16:25:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 16:25:33,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-09 16:25:33,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:25:33,733 INFO L225 Difference]: With dead ends: 72 [2020-11-09 16:25:33,733 INFO L226 Difference]: Without dead ends: 60 [2020-11-09 16:25:33,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:25:33,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-09 16:25:33,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-11-09 16:25:33,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-09 16:25:33,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 98 transitions. [2020-11-09 16:25:33,744 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 98 transitions. Word has length 6 [2020-11-09 16:25:33,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:25:33,744 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 98 transitions. [2020-11-09 16:25:33,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 16:25:33,745 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 98 transitions. [2020-11-09 16:25:33,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 16:25:33,745 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:25:33,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:25:33,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 16:25:33,746 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:25:33,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:25:33,747 INFO L82 PathProgramCache]: Analyzing trace with hash 907482687, now seen corresponding path program 1 times [2020-11-09 16:25:33,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:25:33,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348602158] [2020-11-09 16:25:33,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:25:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:25:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:25:33,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348602158] [2020-11-09 16:25:33,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:25:33,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 16:25:33,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1018815052] [2020-11-09 16:25:33,821 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:25:33,822 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:25:33,824 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 16:25:33,824 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:25:33,824 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:25:33,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 16:25:33,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:25:33,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 16:25:33,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:25:33,826 INFO L87 Difference]: Start difference. First operand 56 states and 98 transitions. Second operand 3 states. [2020-11-09 16:25:33,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:25:33,859 INFO L93 Difference]: Finished difference Result 50 states and 82 transitions. [2020-11-09 16:25:33,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 16:25:33,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 16:25:33,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:25:33,860 INFO L225 Difference]: With dead ends: 50 [2020-11-09 16:25:33,861 INFO L226 Difference]: Without dead ends: 37 [2020-11-09 16:25:33,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:25:33,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-09 16:25:33,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-09 16:25:33,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-09 16:25:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2020-11-09 16:25:33,866 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2020-11-09 16:25:33,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:25:33,867 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2020-11-09 16:25:33,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 16:25:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2020-11-09 16:25:33,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 16:25:33,868 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:25:33,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:25:33,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 16:25:33,868 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:25:33,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:25:33,869 INFO L82 PathProgramCache]: Analyzing trace with hash -2002101761, now seen corresponding path program 1 times [2020-11-09 16:25:33,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:25:33,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983164464] [2020-11-09 16:25:33,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:25:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:25:33,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:25:33,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983164464] [2020-11-09 16:25:33,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:25:33,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 16:25:33,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2047128875] [2020-11-09 16:25:33,958 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:25:33,961 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:25:33,963 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-11-09 16:25:33,964 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:25:33,982 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:25:33,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 16:25:33,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:25:33,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 16:25:33,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:25:33,984 INFO L87 Difference]: Start difference. First operand 37 states and 54 transitions. Second operand 3 states. [2020-11-09 16:25:33,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:25:33,993 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2020-11-09 16:25:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 16:25:33,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-09 16:25:33,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:25:33,995 INFO L225 Difference]: With dead ends: 37 [2020-11-09 16:25:33,996 INFO L226 Difference]: Without dead ends: 31 [2020-11-09 16:25:33,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:25:33,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-09 16:25:34,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-09 16:25:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-09 16:25:34,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-09 16:25:34,005 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-11-09 16:25:34,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:25:34,005 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-09 16:25:34,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 16:25:34,006 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-09 16:25:34,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 16:25:34,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:25:34,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:25:34,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 16:25:34,007 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:25:34,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:25:34,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1339377771, now seen corresponding path program 2 times [2020-11-09 16:25:34,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:25:34,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140418836] [2020-11-09 16:25:34,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:25:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:25:34,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 16:25:34,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140418836] [2020-11-09 16:25:34,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:25:34,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 16:25:34,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1341543963] [2020-11-09 16:25:34,072 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:25:34,073 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:25:34,074 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-11-09 16:25:34,075 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:25:34,075 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:25:34,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 16:25:34,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:25:34,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 16:25:34,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:25:34,077 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 3 states. [2020-11-09 16:25:34,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:25:34,096 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-11-09 16:25:34,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 16:25:34,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-09 16:25:34,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:25:34,098 INFO L225 Difference]: With dead ends: 11 [2020-11-09 16:25:34,098 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 16:25:34,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 16:25:34,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 16:25:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 16:25:34,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 16:25:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 16:25:34,099 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-09 16:25:34,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:25:34,100 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 16:25:34,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 16:25:34,100 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 16:25:34,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 16:25:34,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 16:25:34,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:25:34 BasicIcfg [2020-11-09 16:25:34,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 16:25:34,112 INFO L168 Benchmark]: Toolchain (without parser) took 13227.41 ms. Allocated memory was 125.8 MB in the beginning and 195.0 MB in the end (delta: 69.2 MB). Free memory was 100.2 MB in the beginning and 108.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 62.0 MB. Max. memory is 8.0 GB. [2020-11-09 16:25:34,113 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 125.8 MB. Free memory is still 99.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 16:25:34,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.99 ms. Allocated memory was 125.8 MB in the beginning and 162.5 MB in the end (delta: 36.7 MB). Free memory was 99.5 MB in the beginning and 138.3 MB in the end (delta: -38.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. [2020-11-09 16:25:34,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.93 ms. Allocated memory is still 162.5 MB. Free memory was 138.3 MB in the beginning and 136.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 16:25:34,117 INFO L168 Benchmark]: Boogie Preprocessor took 33.50 ms. Allocated memory is still 162.5 MB. Free memory was 135.7 MB in the beginning and 134.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 16:25:34,118 INFO L168 Benchmark]: RCFGBuilder took 1342.27 ms. Allocated memory is still 162.5 MB. Free memory was 134.2 MB in the beginning and 109.9 MB in the end (delta: 24.3 MB). Peak memory consumption was 37.2 MB. Max. memory is 8.0 GB. [2020-11-09 16:25:34,122 INFO L168 Benchmark]: TraceAbstraction took 10991.20 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 109.9 MB in the beginning and 108.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. [2020-11-09 16:25:34,130 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 125.8 MB. Free memory is still 99.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 783.99 ms. Allocated memory was 125.8 MB in the beginning and 162.5 MB in the end (delta: 36.7 MB). Free memory was 99.5 MB in the beginning and 138.3 MB in the end (delta: -38.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 61.93 ms. Allocated memory is still 162.5 MB. Free memory was 138.3 MB in the beginning and 136.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.50 ms. Allocated memory is still 162.5 MB. Free memory was 135.7 MB in the beginning and 134.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1342.27 ms. Allocated memory is still 162.5 MB. Free memory was 134.2 MB in the beginning and 109.9 MB in the end (delta: 24.3 MB). Peak memory consumption was 37.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10991.20 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 109.9 MB in the beginning and 108.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 680 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 84 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 9.8s, 66 PlacesBefore, 23 PlacesAfterwards, 68 TransitionsBefore, 25 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 0 ChoiceCompositions, 62 TotalNumberOfCompositions, 3191 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.8s, HoareTripleCheckerStatistics: 82 SDtfs, 41 SDslu, 33 SDs, 0 SdLazy, 24 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...