/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-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 11:52:29,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 11:52:29,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 11:52:29,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 11:52:29,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 11:52:29,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 11:52:29,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 11:52:29,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 11:52:29,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 11:52:29,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 11:52:29,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 11:52:29,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 11:52:29,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 11:52:29,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 11:52:29,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 11:52:29,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 11:52:29,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 11:52:29,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 11:52:29,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 11:52:29,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 11:52:29,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 11:52:29,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 11:52:29,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 11:52:29,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 11:52:29,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 11:52:29,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 11:52:29,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 11:52:29,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 11:52:29,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 11:52:29,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 11:52:29,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 11:52:29,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 11:52:29,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 11:52:29,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 11:52:29,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 11:52:29,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 11:52:29,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 11:52:29,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 11:52:29,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 11:52:29,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 11:52:29,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 11:52:29,262 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-McrStrategy.epf [2020-04-18 11:52:29,287 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 11:52:29,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 11:52:29,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 11:52:29,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 11:52:29,289 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 11:52:29,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 11:52:29,290 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 11:52:29,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 11:52:29,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 11:52:29,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 11:52:29,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 11:52:29,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 11:52:29,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 11:52:29,292 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 11:52:29,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 11:52:29,292 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 11:52:29,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 11:52:29,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 11:52:29,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 11:52:29,293 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 11:52:29,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 11:52:29,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:52:29,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 11:52:29,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 11:52:29,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 11:52:29,295 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 11:52:29,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 11:52:29,296 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 11:52:29,296 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 11:52:29,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 11:52:29,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 11:52:29,597 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 11:52:29,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 11:52:29,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 11:52:29,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 11:52:29,615 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 11:52:29,616 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2020-04-18 11:52:29,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67fd71f0f/7ca8d432ceb54590b2ead878d59a831a/FLAGe6eb54081 [2020-04-18 11:52:30,239 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 11:52:30,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2020-04-18 11:52:30,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67fd71f0f/7ca8d432ceb54590b2ead878d59a831a/FLAGe6eb54081 [2020-04-18 11:52:30,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67fd71f0f/7ca8d432ceb54590b2ead878d59a831a [2020-04-18 11:52:30,529 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 11:52:30,554 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 11:52:30,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 11:52:30,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 11:52:30,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 11:52:30,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:52:30" (1/1) ... [2020-04-18 11:52:30,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2164f22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:30, skipping insertion in model container [2020-04-18 11:52:30,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:52:30" (1/1) ... [2020-04-18 11:52:30,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 11:52:30,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 11:52:31,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:52:31,058 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 11:52:31,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:52:31,236 INFO L208 MainTranslator]: Completed translation [2020-04-18 11:52:31,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31 WrapperNode [2020-04-18 11:52:31,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 11:52:31,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 11:52:31,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 11:52:31,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 11:52:31,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31" (1/1) ... [2020-04-18 11:52:31,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31" (1/1) ... [2020-04-18 11:52:31,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 11:52:31,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 11:52:31,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 11:52:31,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 11:52:31,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31" (1/1) ... [2020-04-18 11:52:31,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31" (1/1) ... [2020-04-18 11:52:31,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31" (1/1) ... [2020-04-18 11:52:31,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31" (1/1) ... [2020-04-18 11:52:31,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31" (1/1) ... [2020-04-18 11:52:31,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31" (1/1) ... [2020-04-18 11:52:31,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31" (1/1) ... [2020-04-18 11:52:31,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 11:52:31,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 11:52:31,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 11:52:31,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 11:52:31,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31" (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 [2020-04-18 11:52:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 11:52:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-04-18 11:52:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-04-18 11:52:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 11:52:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 11:52:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 11:52:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 11:52:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 11:52:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 11:52:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 11:52:31,425 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 11:52:31,848 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 11:52:31,848 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-04-18 11:52:31,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:52:31 BoogieIcfgContainer [2020-04-18 11:52:31,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 11:52:31,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 11:52:31,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 11:52:31,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 11:52:31,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:52:30" (1/3) ... [2020-04-18 11:52:31,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c0fefc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:52:31, skipping insertion in model container [2020-04-18 11:52:31,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:31" (2/3) ... [2020-04-18 11:52:31,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c0fefc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:52:31, skipping insertion in model container [2020-04-18 11:52:31,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:52:31" (3/3) ... [2020-04-18 11:52:31,861 INFO L109 eAbstractionObserver]: Analyzing ICFG peterson.i [2020-04-18 11:52:31,870 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 11:52:31,870 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 11:52:31,877 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 11:52:31,878 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 11:52:31,901 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,902 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,902 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,902 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,903 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,904 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,904 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,905 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,905 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,905 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,906 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,906 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,910 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,910 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,911 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,911 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,916 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,917 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,917 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,917 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:31,945 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 11:52:31,965 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:52:31,965 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:52:31,965 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:52:31,966 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:52:31,966 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:52:31,966 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:52:31,966 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:52:31,966 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:52:31,983 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 62 transitions, 146 flow [2020-04-18 11:52:31,985 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 62 transitions, 146 flow [2020-04-18 11:52:32,025 INFO L129 PetriNetUnfolder]: 7/62 cut-off events. [2020-04-18 11:52:32,026 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 11:52:32,031 INFO L80 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 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 39. Up to 3 conditions per place. [2020-04-18 11:52:32,034 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 62 transitions, 146 flow [2020-04-18 11:52:32,051 INFO L129 PetriNetUnfolder]: 7/62 cut-off events. [2020-04-18 11:52:32,052 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 11:52:32,053 INFO L80 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 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 39. Up to 3 conditions per place. [2020-04-18 11:52:32,055 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 756 [2020-04-18 11:52:32,056 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 11:52:32,941 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-04-18 11:52:33,017 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1582 [2020-04-18 11:52:33,017 INFO L214 etLargeBlockEncoding]: Total number of compositions: 32 [2020-04-18 11:52:33,027 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 35 transitions, 92 flow [2020-04-18 11:52:33,059 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 216 states. [2020-04-18 11:52:33,062 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-04-18 11:52:33,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 11:52:33,070 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:33,071 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 11:52:33,071 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:33,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:33,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1408592637, now seen corresponding path program 1 times [2020-04-18 11:52:33,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:33,089 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1735811142] [2020-04-18 11:52:33,107 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:33,122 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 11:52:33,124 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 11:52:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 11:52:33,124 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:33,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:33,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1408592637, now seen corresponding path program 2 times [2020-04-18 11:52:33,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:33,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480521487] [2020-04-18 11:52:33,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:33,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:33,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480521487] [2020-04-18 11:52:33,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:33,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:52:33,329 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:33,329 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:33,330 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 11:52:33,331 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:33,333 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:52:33,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 11:52:33,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:52:33,338 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 2 states. [2020-04-18 11:52:33,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:33,341 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-04-18 11:52:33,341 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-04-18 11:52:33,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:33,342 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1735811142] [2020-04-18 11:52:33,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:33,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:52:33,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1735811142] [2020-04-18 11:52:33,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 11:52:33,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:33,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 11:52:33,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:52:33,350 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 2 states. [2020-04-18 11:52:33,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:33,365 INFO L93 Difference]: Finished difference Result 216 states and 500 transitions. [2020-04-18 11:52:33,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 11:52:33,367 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-04-18 11:52:33,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:33,399 INFO L225 Difference]: With dead ends: 216 [2020-04-18 11:52:33,399 INFO L226 Difference]: Without dead ends: 186 [2020-04-18 11:52:33,401 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:52:33,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-04-18 11:52:33,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2020-04-18 11:52:33,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-04-18 11:52:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 436 transitions. [2020-04-18 11:52:33,473 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 436 transitions. Word has length 6 [2020-04-18 11:52:33,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:33,474 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 436 transitions. [2020-04-18 11:52:33,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 11:52:33,474 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 436 transitions. [2020-04-18 11:52:33,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:52:33,476 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:33,476 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:33,476 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:33,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:33,477 INFO L82 PathProgramCache]: Analyzing trace with hash -716726219, now seen corresponding path program 1 times [2020-04-18 11:52:33,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:33,477 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [573906443] [2020-04-18 11:52:33,477 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:33,478 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 11:52:33,478 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-04-18 11:52:33,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:52:33,479 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:33,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:33,479 INFO L82 PathProgramCache]: Analyzing trace with hash -716726219, now seen corresponding path program 2 times [2020-04-18 11:52:33,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:33,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303582803] [2020-04-18 11:52:33,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:33,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303582803] [2020-04-18 11:52:33,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:33,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:52:33,565 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:33,565 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:33,567 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 11:52:33,567 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:33,572 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:52:33,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:52:33,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:33,573 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-04-18 11:52:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:33,579 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-04-18 11:52:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-04-18 11:52:33,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:33,580 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [573906443] [2020-04-18 11:52:33,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:33,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:52:33,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [573906443] [2020-04-18 11:52:33,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:52:33,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:33,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:52:33,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:33,584 INFO L87 Difference]: Start difference. First operand 186 states and 436 transitions. Second operand 3 states. [2020-04-18 11:52:33,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:33,631 INFO L93 Difference]: Finished difference Result 203 states and 449 transitions. [2020-04-18 11:52:33,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:52:33,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 11:52:33,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:33,635 INFO L225 Difference]: With dead ends: 203 [2020-04-18 11:52:33,636 INFO L226 Difference]: Without dead ends: 158 [2020-04-18 11:52:33,639 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:33,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-04-18 11:52:33,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 144. [2020-04-18 11:52:33,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-04-18 11:52:33,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 325 transitions. [2020-04-18 11:52:33,670 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 325 transitions. Word has length 7 [2020-04-18 11:52:33,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:33,670 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 325 transitions. [2020-04-18 11:52:33,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:52:33,671 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 325 transitions. [2020-04-18 11:52:33,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 11:52:33,672 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:33,672 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:33,672 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:33,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:33,673 INFO L82 PathProgramCache]: Analyzing trace with hash 188907911, now seen corresponding path program 1 times [2020-04-18 11:52:33,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:33,673 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1427307339] [2020-04-18 11:52:33,674 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:33,674 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 11:52:33,675 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 11:52:33,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 11:52:33,675 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:33,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:33,676 INFO L82 PathProgramCache]: Analyzing trace with hash 188907911, now seen corresponding path program 2 times [2020-04-18 11:52:33,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:33,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518839209] [2020-04-18 11:52:33,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:33,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:33,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518839209] [2020-04-18 11:52:33,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:33,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:52:33,756 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:33,757 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:33,758 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 11:52:33,758 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:33,763 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:52:33,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:52:33,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:33,765 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-04-18 11:52:33,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:33,769 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-04-18 11:52:33,769 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-04-18 11:52:33,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:33,770 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1427307339] [2020-04-18 11:52:33,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:33,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:52:33,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1427307339] [2020-04-18 11:52:33,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:52:33,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:33,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:52:33,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:33,772 INFO L87 Difference]: Start difference. First operand 144 states and 325 transitions. Second operand 3 states. [2020-04-18 11:52:33,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:33,794 INFO L93 Difference]: Finished difference Result 135 states and 290 transitions. [2020-04-18 11:52:33,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:52:33,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-18 11:52:33,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:33,796 INFO L225 Difference]: With dead ends: 135 [2020-04-18 11:52:33,796 INFO L226 Difference]: Without dead ends: 96 [2020-04-18 11:52:33,796 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:33,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-04-18 11:52:33,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-04-18 11:52:33,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-04-18 11:52:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 204 transitions. [2020-04-18 11:52:33,805 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 204 transitions. Word has length 9 [2020-04-18 11:52:33,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:33,806 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 204 transitions. [2020-04-18 11:52:33,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:52:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 204 transitions. [2020-04-18 11:52:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 11:52:33,808 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:33,808 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:33,808 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:33,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:33,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1905704594, now seen corresponding path program 1 times [2020-04-18 11:52:33,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:33,810 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1985889045] [2020-04-18 11:52:33,810 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:33,811 INFO L259 McrAutomatonBuilder]: Finished intersection with 44 states and 73 transitions. [2020-04-18 11:52:33,812 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-04-18 11:52:33,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 11:52:33,813 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:33,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:33,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1906030274, now seen corresponding path program 2 times [2020-04-18 11:52:33,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:33,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292660029] [2020-04-18 11:52:33,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:33,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:33,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292660029] [2020-04-18 11:52:33,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:33,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:52:33,873 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:33,874 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:33,877 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 48 transitions. [2020-04-18 11:52:33,878 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:33,885 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 11:52:33,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:52:33,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:33,886 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-04-18 11:52:33,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:33,897 INFO L93 Difference]: Finished difference Result 46 states and 74 transitions. [2020-04-18 11:52:33,898 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 74 transitions. [2020-04-18 11:52:33,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 11:52:33,899 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:52:33,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:33,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1905704594, now seen corresponding path program 3 times [2020-04-18 11:52:33,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:33,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812557883] [2020-04-18 11:52:33,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:33,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:33,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812557883] [2020-04-18 11:52:33,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:33,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:52:33,949 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:33,950 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:33,953 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 36 transitions. [2020-04-18 11:52:33,953 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:33,973 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 11:52:33,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:52:33,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:52:33,974 INFO L87 Difference]: Start difference. First operand 46 states and 74 transitions. Second operand 4 states. [2020-04-18 11:52:33,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:33,986 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2020-04-18 11:52:33,986 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 97 transitions. [2020-04-18 11:52:33,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 11:52:33,987 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:52:33,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:33,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1601567116, now seen corresponding path program 4 times [2020-04-18 11:52:33,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:33,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157230963] [2020-04-18 11:52:33,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:34,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157230963] [2020-04-18 11:52:34,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:34,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:52:34,048 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:34,049 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:34,052 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 37 transitions. [2020-04-18 11:52:34,053 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:34,074 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 11:52:34,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:52:34,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 11:52:34,088 INFO L87 Difference]: Start difference. First operand 63 states and 97 transitions. Second operand 4 states. [2020-04-18 11:52:34,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:34,102 INFO L93 Difference]: Finished difference Result 80 states and 120 transitions. [2020-04-18 11:52:34,102 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 120 transitions. [2020-04-18 11:52:34,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:34,103 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1985889045] [2020-04-18 11:52:34,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:34,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 11:52:34,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1985889045] [2020-04-18 11:52:34,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 11:52:34,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:34,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 11:52:34,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 11:52:34,105 INFO L87 Difference]: Start difference. First operand 96 states and 204 transitions. Second operand 7 states. [2020-04-18 11:52:34,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:34,229 INFO L93 Difference]: Finished difference Result 66 states and 152 transitions. [2020-04-18 11:52:34,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 11:52:34,229 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-04-18 11:52:34,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:34,230 INFO L225 Difference]: With dead ends: 66 [2020-04-18 11:52:34,230 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 11:52:34,230 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-04-18 11:52:34,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 11:52:34,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 11:52:34,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 11:52:34,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 11:52:34,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-04-18 11:52:34,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:34,231 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 11:52:34,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 11:52:34,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 11:52:34,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:34,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:52:34 BasicIcfg [2020-04-18 11:52:34,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 11:52:34,238 INFO L168 Benchmark]: Toolchain (without parser) took 3706.62 ms. Allocated memory was 138.4 MB in the beginning and 248.5 MB in the end (delta: 110.1 MB). Free memory was 102.4 MB in the beginning and 194.7 MB in the end (delta: -92.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:34,239 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 11:52:34,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.26 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 162.7 MB in the end (delta: -62.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:34,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.04 ms. Allocated memory is still 202.9 MB. Free memory was 162.7 MB in the beginning and 160.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:34,241 INFO L168 Benchmark]: Boogie Preprocessor took 39.01 ms. Allocated memory is still 202.9 MB. Free memory was 160.7 MB in the beginning and 159.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:34,242 INFO L168 Benchmark]: RCFGBuilder took 504.71 ms. Allocated memory is still 202.9 MB. Free memory was 159.3 MB in the beginning and 139.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:34,243 INFO L168 Benchmark]: TraceAbstraction took 2382.34 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 138.6 MB in the beginning and 194.7 MB in the end (delta: -56.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 11:52:34,247 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 682.26 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 162.7 MB in the end (delta: -62.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 70.04 ms. Allocated memory is still 202.9 MB. Free memory was 162.7 MB in the beginning and 160.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.01 ms. Allocated memory is still 202.9 MB. Free memory was 160.7 MB in the beginning and 159.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 504.71 ms. Allocated memory is still 202.9 MB. Free memory was 159.3 MB in the beginning and 139.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2382.34 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 138.6 MB in the beginning and 194.7 MB in the end (delta: -56.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 61 ProgramPointsBefore, 35 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. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 126 SDtfs, 68 SDslu, 72 SDs, 0 SdLazy, 52 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...