/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 19:21:45,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 19:21:45,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 19:21:45,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 19:21:45,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 19:21:45,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 19:21:45,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 19:21:45,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 19:21:45,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 19:21:45,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 19:21:45,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 19:21:45,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 19:21:45,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 19:21:45,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 19:21:45,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 19:21:45,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 19:21:45,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 19:21:45,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 19:21:45,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 19:21:45,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 19:21:45,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 19:21:45,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 19:21:45,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 19:21:45,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 19:21:45,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 19:21:45,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 19:21:45,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 19:21:45,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 19:21:45,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 19:21:45,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 19:21:45,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 19:21:45,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 19:21:45,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 19:21:45,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 19:21:45,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 19:21:45,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 19:21:45,201 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-VariableLbe-MCR.epf [2019-12-27 19:21:45,238 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 19:21:45,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 19:21:45,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 19:21:45,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 19:21:45,240 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 19:21:45,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 19:21:45,241 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 19:21:45,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 19:21:45,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 19:21:45,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 19:21:45,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 19:21:45,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 19:21:45,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 19:21:45,242 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 19:21:45,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 19:21:45,242 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 19:21:45,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 19:21:45,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 19:21:45,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 19:21:45,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 19:21:45,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 19:21:45,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 19:21:45,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 19:21:45,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 19:21:45,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 19:21:45,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 19:21:45,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 19:21:45,245 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 19:21:45,245 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 19:21:45,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 19:21:45,245 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 19:21:45,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 19:21:45,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 19:21:45,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 19:21:45,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 19:21:45,544 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 19:21:45,544 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 19:21:45,545 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2019-12-27 19:21:45,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b262c8f2/154caad066144316b83285ac694e41ac/FLAG98d2a0d3e [2019-12-27 19:21:46,233 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 19:21:46,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2019-12-27 19:21:46,257 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b262c8f2/154caad066144316b83285ac694e41ac/FLAG98d2a0d3e [2019-12-27 19:21:46,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b262c8f2/154caad066144316b83285ac694e41ac [2019-12-27 19:21:46,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 19:21:46,474 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 19:21:46,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 19:21:46,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 19:21:46,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 19:21:46,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:21:46" (1/1) ... [2019-12-27 19:21:46,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e74f9eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:46, skipping insertion in model container [2019-12-27 19:21:46,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:21:46" (1/1) ... [2019-12-27 19:21:46,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 19:21:46,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 19:21:46,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 19:21:46,970 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 19:21:47,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 19:21:47,124 INFO L208 MainTranslator]: Completed translation [2019-12-27 19:21:47,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47 WrapperNode [2019-12-27 19:21:47,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 19:21:47,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 19:21:47,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 19:21:47,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 19:21:47,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47" (1/1) ... [2019-12-27 19:21:47,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47" (1/1) ... [2019-12-27 19:21:47,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 19:21:47,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 19:21:47,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 19:21:47,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 19:21:47,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47" (1/1) ... [2019-12-27 19:21:47,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47" (1/1) ... [2019-12-27 19:21:47,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47" (1/1) ... [2019-12-27 19:21:47,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47" (1/1) ... [2019-12-27 19:21:47,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47" (1/1) ... [2019-12-27 19:21:47,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47" (1/1) ... [2019-12-27 19:21:47,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47" (1/1) ... [2019-12-27 19:21:47,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 19:21:47,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 19:21:47,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 19:21:47,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 19:21:47,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47" (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 [2019-12-27 19:21:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 19:21:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 19:21:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 19:21:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 19:21:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 19:21:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 19:21:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 19:21:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 19:21:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 19:21:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 19:21:47,290 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 19:21:47,618 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 19:21:47,619 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 19:21:47,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:21:47 BoogieIcfgContainer [2019-12-27 19:21:47,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 19:21:47,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 19:21:47,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 19:21:47,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 19:21:47,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:21:46" (1/3) ... [2019-12-27 19:21:47,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4239e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:21:47, skipping insertion in model container [2019-12-27 19:21:47,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:47" (2/3) ... [2019-12-27 19:21:47,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4239e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:21:47, skipping insertion in model container [2019-12-27 19:21:47,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:21:47" (3/3) ... [2019-12-27 19:21:47,629 INFO L109 eAbstractionObserver]: Analyzing ICFG peterson.i [2019-12-27 19:21:47,639 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 19:21:47,640 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 19:21:47,645 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 19:21:47,646 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 19:21:47,674 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,674 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,675 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,677 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,678 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,679 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,680 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,680 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,680 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,680 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,681 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,682 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,686 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,687 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,687 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,687 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,701 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,701 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,702 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,702 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:47,727 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 19:21:47,748 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 19:21:47,749 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 19:21:47,749 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 19:21:47,749 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 19:21:47,749 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 19:21:47,750 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 19:21:47,750 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 19:21:47,750 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 19:21:47,764 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 62 transitions [2019-12-27 19:21:47,766 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 62 transitions [2019-12-27 19:21:47,813 INFO L132 PetriNetUnfolder]: 7/62 cut-off events. [2019-12-27 19:21:47,813 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 19:21:47,821 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 62 events. 7/62 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs. 0/54 useless extension candidates. Maximal degree in co-relation 39. Up to 3 conditions per place. [2019-12-27 19:21:47,825 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 62 transitions [2019-12-27 19:21:47,846 INFO L132 PetriNetUnfolder]: 7/62 cut-off events. [2019-12-27 19:21:47,846 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 19:21:47,848 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 62 events. 7/62 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs. 0/54 useless extension candidates. Maximal degree in co-relation 39. Up to 3 conditions per place. [2019-12-27 19:21:47,850 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 756 [2019-12-27 19:21:47,852 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 19:21:48,713 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-12-27 19:21:48,785 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1582 [2019-12-27 19:21:48,785 INFO L214 etLargeBlockEncoding]: Total number of compositions: 32 [2019-12-27 19:21:48,789 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 35 transitions [2019-12-27 19:21:48,809 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 216 states. [2019-12-27 19:21:48,811 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2019-12-27 19:21:48,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 19:21:48,818 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:21:48,819 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-27 19:21:48,819 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:21:48,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:21:48,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1408592637, now seen corresponding path program 1 times [2019-12-27 19:21:48,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:21:48,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774509751] [2019-12-27 19:21:48,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:21:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:21:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 19:21:49,072 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774509751] [2019-12-27 19:21:49,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:21:49,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 19:21:49,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1514961744] [2019-12-27 19:21:49,075 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:21:49,083 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:21:49,098 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 7 states and 6 transitions. [2019-12-27 19:21:49,098 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:21:49,102 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:21:49,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 19:21:49,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:21:49,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 19:21:49,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 19:21:49,119 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 2 states. [2019-12-27 19:21:49,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:21:49,137 INFO L93 Difference]: Finished difference Result 216 states and 500 transitions. [2019-12-27 19:21:49,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 19:21:49,138 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-12-27 19:21:49,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:21:49,152 INFO L225 Difference]: With dead ends: 216 [2019-12-27 19:21:49,152 INFO L226 Difference]: Without dead ends: 186 [2019-12-27 19:21:49,154 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 19:21:49,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2019-12-27 19:21:49,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2019-12-27 19:21:49,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-12-27 19:21:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 436 transitions. [2019-12-27 19:21:49,212 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 436 transitions. Word has length 6 [2019-12-27 19:21:49,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:21:49,212 INFO L462 AbstractCegarLoop]: Abstraction has 186 states and 436 transitions. [2019-12-27 19:21:49,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 19:21:49,213 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 436 transitions. [2019-12-27 19:21:49,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 19:21:49,213 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:21:49,214 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:21:49,214 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:21:49,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:21:49,214 INFO L82 PathProgramCache]: Analyzing trace with hash -716726219, now seen corresponding path program 1 times [2019-12-27 19:21:49,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:21:49,215 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751453927] [2019-12-27 19:21:49,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:21:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:21:49,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 19:21:49,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751453927] [2019-12-27 19:21:49,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:21:49,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 19:21:49,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1793527744] [2019-12-27 19:21:49,297 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:21:49,297 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:21:49,299 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 8 states and 7 transitions. [2019-12-27 19:21:49,299 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:21:49,299 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:21:49,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:21:49,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:21:49,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:21:49,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:21:49,302 INFO L87 Difference]: Start difference. First operand 186 states and 436 transitions. Second operand 3 states. [2019-12-27 19:21:49,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:21:49,358 INFO L93 Difference]: Finished difference Result 203 states and 449 transitions. [2019-12-27 19:21:49,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:21:49,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-27 19:21:49,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:21:49,363 INFO L225 Difference]: With dead ends: 203 [2019-12-27 19:21:49,364 INFO L226 Difference]: Without dead ends: 158 [2019-12-27 19:21:49,364 INFO L631 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 [2019-12-27 19:21:49,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-12-27 19:21:49,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 144. [2019-12-27 19:21:49,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-12-27 19:21:49,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 325 transitions. [2019-12-27 19:21:49,401 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 325 transitions. Word has length 7 [2019-12-27 19:21:49,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:21:49,401 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 325 transitions. [2019-12-27 19:21:49,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:21:49,401 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 325 transitions. [2019-12-27 19:21:49,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 19:21:49,402 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:21:49,403 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:21:49,403 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:21:49,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:21:49,404 INFO L82 PathProgramCache]: Analyzing trace with hash 188907911, now seen corresponding path program 1 times [2019-12-27 19:21:49,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:21:49,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505293917] [2019-12-27 19:21:49,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:21:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:21:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 19:21:49,483 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505293917] [2019-12-27 19:21:49,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:21:49,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 19:21:49,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1749261353] [2019-12-27 19:21:49,484 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:21:49,485 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:21:49,486 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 19:21:49,486 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:21:49,487 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:21:49,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:21:49,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:21:49,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:21:49,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:21:49,488 INFO L87 Difference]: Start difference. First operand 144 states and 325 transitions. Second operand 3 states. [2019-12-27 19:21:49,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:21:49,511 INFO L93 Difference]: Finished difference Result 135 states and 290 transitions. [2019-12-27 19:21:49,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:21:49,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 19:21:49,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:21:49,514 INFO L225 Difference]: With dead ends: 135 [2019-12-27 19:21:49,514 INFO L226 Difference]: Without dead ends: 96 [2019-12-27 19:21:49,514 INFO L631 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 [2019-12-27 19:21:49,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-12-27 19:21:49,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-12-27 19:21:49,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-12-27 19:21:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 204 transitions. [2019-12-27 19:21:49,537 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 204 transitions. Word has length 9 [2019-12-27 19:21:49,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:21:49,538 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 204 transitions. [2019-12-27 19:21:49,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:21:49,538 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 204 transitions. [2019-12-27 19:21:49,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-27 19:21:49,540 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:21:49,542 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:21:49,542 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:21:49,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:21:49,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1905704594, now seen corresponding path program 1 times [2019-12-27 19:21:49,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:21:49,543 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975933539] [2019-12-27 19:21:49,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:21:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:21:49,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 19:21:49,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975933539] [2019-12-27 19:21:49,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:21:49,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 19:21:49,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1518759933] [2019-12-27 19:21:49,626 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:21:49,628 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:21:49,630 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 36 transitions. [2019-12-27 19:21:49,631 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:21:49,634 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 19:21:49,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 19:21:49,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:21:49,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 19:21:49,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 19:21:49,636 INFO L87 Difference]: Start difference. First operand 96 states and 204 transitions. Second operand 4 states. [2019-12-27 19:21:49,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:21:49,669 INFO L93 Difference]: Finished difference Result 106 states and 227 transitions. [2019-12-27 19:21:49,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 19:21:49,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-27 19:21:49,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:21:49,671 INFO L225 Difference]: With dead ends: 106 [2019-12-27 19:21:49,671 INFO L226 Difference]: Without dead ends: 82 [2019-12-27 19:21:49,671 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 19:21:49,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-12-27 19:21:49,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-12-27 19:21:49,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-12-27 19:21:49,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 160 transitions. [2019-12-27 19:21:49,678 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 160 transitions. Word has length 13 [2019-12-27 19:21:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:21:49,678 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 160 transitions. [2019-12-27 19:21:49,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 19:21:49,679 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 160 transitions. [2019-12-27 19:21:49,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-27 19:21:49,680 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:21:49,680 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:21:49,680 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:21:49,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:21:49,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1601567116, now seen corresponding path program 2 times [2019-12-27 19:21:49,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:21:49,681 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755404931] [2019-12-27 19:21:49,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:21:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:21:49,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 19:21:49,730 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755404931] [2019-12-27 19:21:49,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:21:49,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 19:21:49,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [352967561] [2019-12-27 19:21:49,731 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:21:49,732 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:21:49,734 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 28 states and 37 transitions. [2019-12-27 19:21:49,735 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:21:49,736 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 19:21:49,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 19:21:49,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:21:49,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 19:21:49,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 19:21:49,737 INFO L87 Difference]: Start difference. First operand 82 states and 160 transitions. Second operand 4 states. [2019-12-27 19:21:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:21:49,760 INFO L93 Difference]: Finished difference Result 36 states and 77 transitions. [2019-12-27 19:21:49,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 19:21:49,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-27 19:21:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:21:49,761 INFO L225 Difference]: With dead ends: 36 [2019-12-27 19:21:49,761 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 19:21:49,762 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 19:21:49,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 19:21:49,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 19:21:49,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 19:21:49,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 19:21:49,763 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-12-27 19:21:49,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:21:49,763 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 19:21:49,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 19:21:49,763 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 19:21:49,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 19:21:49,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:21:49 BasicIcfg [2019-12-27 19:21:49,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 19:21:49,772 INFO L168 Benchmark]: Toolchain (without parser) took 3296.46 ms. Allocated memory was 139.5 MB in the beginning and 234.9 MB in the end (delta: 95.4 MB). Free memory was 101.3 MB in the beginning and 89.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 107.5 MB. Max. memory is 7.1 GB. [2019-12-27 19:21:49,774 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 19:21:49,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.19 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 162.8 MB in the end (delta: -61.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-12-27 19:21:49,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.49 ms. Allocated memory is still 203.9 MB. Free memory was 162.8 MB in the beginning and 160.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 19:21:49,783 INFO L168 Benchmark]: Boogie Preprocessor took 27.21 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 159.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 19:21:49,784 INFO L168 Benchmark]: RCFGBuilder took 403.48 ms. Allocated memory is still 203.9 MB. Free memory was 159.6 MB in the beginning and 139.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 19:21:49,785 INFO L168 Benchmark]: TraceAbstraction took 2146.66 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 139.6 MB in the beginning and 89.2 MB in the end (delta: 50.4 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2019-12-27 19:21:49,793 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.19 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 162.8 MB in the end (delta: -61.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 63.49 ms. Allocated memory is still 203.9 MB. Free memory was 162.8 MB in the beginning and 160.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.21 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 159.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 403.48 ms. Allocated memory is still 203.9 MB. Free memory was 159.6 MB in the beginning and 139.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2146.66 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 139.6 MB in the beginning and 89.2 MB in the end (delta: 50.4 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 61 ProgramPointsBefore, 34 ProgramPointsAfterwards, 62 TransitionsBefore, 35 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 338 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1582 CheckedPairsTotal, 32 TotalNumberOfCompositions - PositiveResult [Line: 690]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 681]: 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 3 procedures, 55 locations, 2 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 141 SDtfs, 58 SDslu, 60 SDs, 0 SdLazy, 35 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 801 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...