/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-wmm/safe029_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:35:05,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:35:05,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:35:05,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:35:05,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:35:05,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:35:05,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:35:05,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:35:05,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:35:05,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:35:05,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:35:05,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:35:05,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:35:05,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:35:05,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:35:05,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:35:05,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:35:05,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:35:05,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:35:05,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:35:05,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:35:05,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:35:05,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:35:05,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:35:05,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:35:05,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:35:05,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:35:05,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:35:05,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:35:05,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:35:05,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:35:05,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:35:05,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:35:05,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:35:05,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:35:05,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:35:05,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:35:05,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:35:05,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:35:05,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:35:05,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:35:05,139 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 15:35:05,164 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:35:05,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:35:05,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:35:05,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:35:05,167 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:35:05,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:35:05,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:35:05,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:35:05,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:35:05,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:35:05,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:35:05,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:35:05,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:35:05,170 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:35:05,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:35:05,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:35:05,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:35:05,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:35:05,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:35:05,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:35:05,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:35:05,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:35:05,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:35:05,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:35:05,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:35:05,172 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:35:05,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:35:05,173 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:35:05,173 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:35:05,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:35:05,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:35:05,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:35:05,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:35:05,465 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:35:05,466 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:35:05,466 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:35:05,467 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i [2020-04-18 15:35:05,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20ec5a165/fc18c4b2fbd142cd87895938668e6c54/FLAG826a77b83 [2020-04-18 15:35:06,109 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:35:06,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i [2020-04-18 15:35:06,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20ec5a165/fc18c4b2fbd142cd87895938668e6c54/FLAG826a77b83 [2020-04-18 15:35:06,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20ec5a165/fc18c4b2fbd142cd87895938668e6c54 [2020-04-18 15:35:06,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:35:06,495 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:35:06,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:35:06,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:35:06,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:35:06,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:35:06" (1/1) ... [2020-04-18 15:35:06,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589a06c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:06, skipping insertion in model container [2020-04-18 15:35:06,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:35:06" (1/1) ... [2020-04-18 15:35:06,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:35:06,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:35:07,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:35:07,053 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:35:07,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:35:07,181 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:35:07,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07 WrapperNode [2020-04-18 15:35:07,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:35:07,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:35:07,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:35:07,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:35:07,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07" (1/1) ... [2020-04-18 15:35:07,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07" (1/1) ... [2020-04-18 15:35:07,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:35:07,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:35:07,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:35:07,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:35:07,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07" (1/1) ... [2020-04-18 15:35:07,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07" (1/1) ... [2020-04-18 15:35:07,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07" (1/1) ... [2020-04-18 15:35:07,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07" (1/1) ... [2020-04-18 15:35:07,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07" (1/1) ... [2020-04-18 15:35:07,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07" (1/1) ... [2020-04-18 15:35:07,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07" (1/1) ... [2020-04-18 15:35:07,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:35:07,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:35:07,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:35:07,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:35:07,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07" (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 15:35:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:35:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:35:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:35:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:35:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 15:35:07,327 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 15:35:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 15:35:07,327 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 15:35:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:35:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:35:07,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:35:07,329 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 15:35:07,695 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:35:07,696 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 15:35:07,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:35:07 BoogieIcfgContainer [2020-04-18 15:35:07,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:35:07,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:35:07,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:35:07,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:35:07,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:35:06" (1/3) ... [2020-04-18 15:35:07,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f229cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:35:07, skipping insertion in model container [2020-04-18 15:35:07,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:35:07" (2/3) ... [2020-04-18 15:35:07,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f229cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:35:07, skipping insertion in model container [2020-04-18 15:35:07,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:35:07" (3/3) ... [2020-04-18 15:35:07,710 INFO L109 eAbstractionObserver]: Analyzing ICFG safe029_tso.opt.i [2020-04-18 15:35:07,720 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:35:07,721 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:35:07,729 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:35:07,730 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:35:07,755 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,755 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,755 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,756 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,756 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,756 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,757 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,757 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,758 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,758 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,758 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,759 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,763 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,764 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,764 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,764 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,770 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,770 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,771 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,771 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:35:07,787 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 15:35:07,809 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:35:07,809 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:35:07,809 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:35:07,810 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:35:07,810 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:35:07,810 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:35:07,810 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:35:07,810 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:35:07,826 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 54 transitions, 118 flow [2020-04-18 15:35:07,828 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 118 flow [2020-04-18 15:35:07,866 INFO L129 PetriNetUnfolder]: 2/52 cut-off events. [2020-04-18 15:35:07,867 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:35:07,871 INFO L80 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 52 events. 2/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 15:35:07,874 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 118 flow [2020-04-18 15:35:07,892 INFO L129 PetriNetUnfolder]: 2/52 cut-off events. [2020-04-18 15:35:07,893 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:35:07,893 INFO L80 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 52 events. 2/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 15:35:07,895 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-04-18 15:35:07,896 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:35:09,240 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1300 [2020-04-18 15:35:09,241 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2020-04-18 15:35:09,245 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-04-18 15:35:09,258 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-04-18 15:35:09,261 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-04-18 15:35:09,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:35:09,272 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:35:09,273 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 15:35:09,274 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:35:09,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:09,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1812706200, now seen corresponding path program 1 times [2020-04-18 15:35:09,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:35:09,290 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1196660272] [2020-04-18 15:35:09,308 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:09,321 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 15:35:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 15:35:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:35:09,324 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:35:09,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:09,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1812706200, now seen corresponding path program 2 times [2020-04-18 15:35:09,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:35:09,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308503503] [2020-04-18 15:35:09,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:35:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:35:09,572 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 15:35:09,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308503503] [2020-04-18 15:35:09,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:35:09,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 15:35:09,597 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:35:09,600 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:09,601 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 15:35:09,602 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:35:09,611 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:35:09,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:35:09,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:35:09,617 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-04-18 15:35:09,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:09,622 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-04-18 15:35:09,622 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-04-18 15:35:09,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:35:09,623 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1196660272] [2020-04-18 15:35:09,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:35:09,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 15:35:09,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1196660272] [2020-04-18 15:35:09,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 15:35:09,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:35:09,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:35:09,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:35:09,631 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-04-18 15:35:09,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:09,653 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-04-18 15:35:09,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 15:35:09,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-04-18 15:35:09,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:35:09,665 INFO L225 Difference]: With dead ends: 72 [2020-04-18 15:35:09,666 INFO L226 Difference]: Without dead ends: 56 [2020-04-18 15:35:09,667 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 15:35:09,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-04-18 15:35:09,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-04-18 15:35:09,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-04-18 15:35:09,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-04-18 15:35:09,712 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-04-18 15:35:09,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:35:09,713 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-04-18 15:35:09,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 15:35:09,713 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-04-18 15:35:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 15:35:09,714 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:35:09,714 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:35:09,714 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:35:09,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:09,715 INFO L82 PathProgramCache]: Analyzing trace with hash 343673099, now seen corresponding path program 1 times [2020-04-18 15:35:09,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:35:09,715 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1063802527] [2020-04-18 15:35:09,716 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:09,717 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 15 transitions. [2020-04-18 15:35:09,717 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-04-18 15:35:09,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 15:35:09,718 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:35:09,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:09,718 INFO L82 PathProgramCache]: Analyzing trace with hash 343673099, now seen corresponding path program 2 times [2020-04-18 15:35:09,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:35:09,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254176288] [2020-04-18 15:35:09,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:35:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:35:09,817 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 15:35:09,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254176288] [2020-04-18 15:35:09,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:35:09,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 15:35:09,819 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:35:09,819 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:09,823 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 13 transitions. [2020-04-18 15:35:09,823 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:35:09,837 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:35:09,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:35:09,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:35:09,838 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2020-04-18 15:35:09,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:09,839 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2020-04-18 15:35:09,840 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-04-18 15:35:09,841 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:35:09,841 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1063802527] [2020-04-18 15:35:09,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:35:09,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 15:35:09,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1063802527] [2020-04-18 15:35:09,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 15:35:09,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:35:09,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:35:09,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:35:09,845 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 3 states. [2020-04-18 15:35:09,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:09,857 INFO L93 Difference]: Finished difference Result 55 states and 111 transitions. [2020-04-18 15:35:09,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 15:35:09,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 15:35:09,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:35:09,861 INFO L225 Difference]: With dead ends: 55 [2020-04-18 15:35:09,861 INFO L226 Difference]: Without dead ends: 55 [2020-04-18 15:35:09,862 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 15:35:09,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-04-18 15:35:09,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-04-18 15:35:09,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-04-18 15:35:09,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 111 transitions. [2020-04-18 15:35:09,871 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 111 transitions. Word has length 7 [2020-04-18 15:35:09,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:35:09,871 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 111 transitions. [2020-04-18 15:35:09,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 15:35:09,871 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 111 transitions. [2020-04-18 15:35:09,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:35:09,872 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:35:09,872 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:35:09,872 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:35:09,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:09,873 INFO L82 PathProgramCache]: Analyzing trace with hash 2063912123, now seen corresponding path program 1 times [2020-04-18 15:35:09,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:35:09,874 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [370079740] [2020-04-18 15:35:09,874 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:09,875 INFO L259 McrAutomatonBuilder]: Finished intersection with 18 states and 28 transitions. [2020-04-18 15:35:09,875 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-04-18 15:35:09,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:35:09,876 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:35:09,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:09,877 INFO L82 PathProgramCache]: Analyzing trace with hash 2063912123, now seen corresponding path program 2 times [2020-04-18 15:35:09,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:35:09,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346842622] [2020-04-18 15:35:09,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:35:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:35:09,955 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 15:35:09,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346842622] [2020-04-18 15:35:09,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:35:09,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:35:09,956 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:35:09,958 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:09,962 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 21 transitions. [2020-04-18 15:35:09,963 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:35:09,985 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:35:09,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:35:09,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:35:09,986 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2020-04-18 15:35:09,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:09,998 INFO L93 Difference]: Finished difference Result 18 states and 28 transitions. [2020-04-18 15:35:09,998 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-04-18 15:35:09,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:35:09,998 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [370079740] [2020-04-18 15:35:09,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:35:09,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:35:09,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [370079740] [2020-04-18 15:35:09,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:35:10,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:35:10,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:35:10,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:35:10,001 INFO L87 Difference]: Start difference. First operand 55 states and 111 transitions. Second operand 4 states. [2020-04-18 15:35:10,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:10,032 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2020-04-18 15:35:10,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:35:10,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-04-18 15:35:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:35:10,033 INFO L225 Difference]: With dead ends: 56 [2020-04-18 15:35:10,033 INFO L226 Difference]: Without dead ends: 40 [2020-04-18 15:35:10,033 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:35:10,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-04-18 15:35:10,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-04-18 15:35:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-04-18 15:35:10,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-04-18 15:35:10,039 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 8 [2020-04-18 15:35:10,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:35:10,039 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-04-18 15:35:10,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:35:10,039 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-04-18 15:35:10,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:35:10,040 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:35:10,040 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:35:10,041 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:35:10,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:10,041 INFO L82 PathProgramCache]: Analyzing trace with hash -444073675, now seen corresponding path program 1 times [2020-04-18 15:35:10,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:35:10,041 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1874141115] [2020-04-18 15:35:10,042 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:10,043 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 33 transitions. [2020-04-18 15:35:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-04-18 15:35:10,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:35:10,044 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:35:10,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:10,044 INFO L82 PathProgramCache]: Analyzing trace with hash -444073675, now seen corresponding path program 2 times [2020-04-18 15:35:10,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:35:10,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482864002] [2020-04-18 15:35:10,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:35:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:35:10,103 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 15:35:10,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482864002] [2020-04-18 15:35:10,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:35:10,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:35:10,104 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:35:10,105 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:10,106 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions. [2020-04-18 15:35:10,106 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:35:10,155 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:35:10,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:35:10,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:35:10,155 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2020-04-18 15:35:10,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:10,168 INFO L93 Difference]: Finished difference Result 24 states and 34 transitions. [2020-04-18 15:35:10,168 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2020-04-18 15:35:10,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:35:10,168 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:35:10,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:10,169 INFO L82 PathProgramCache]: Analyzing trace with hash -442629835, now seen corresponding path program 3 times [2020-04-18 15:35:10,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:35:10,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792851217] [2020-04-18 15:35:10,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:35:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:35:10,208 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 15:35:10,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792851217] [2020-04-18 15:35:10,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:35:10,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:35:10,210 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:35:10,210 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:10,211 INFO L259 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-04-18 15:35:10,212 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:35:10,217 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:35:10,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:35:10,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:35:10,218 INFO L87 Difference]: Start difference. First operand 24 states and 34 transitions. Second operand 3 states. [2020-04-18 15:35:10,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:10,221 INFO L93 Difference]: Finished difference Result 24 states and 34 transitions. [2020-04-18 15:35:10,221 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2020-04-18 15:35:10,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:35:10,222 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1874141115] [2020-04-18 15:35:10,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:35:10,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:35:10,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1874141115] [2020-04-18 15:35:10,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 15:35:10,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:35:10,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:35:10,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:35:10,224 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-04-18 15:35:10,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:10,243 INFO L93 Difference]: Finished difference Result 51 states and 79 transitions. [2020-04-18 15:35:10,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 15:35:10,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-04-18 15:35:10,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:35:10,244 INFO L225 Difference]: With dead ends: 51 [2020-04-18 15:35:10,244 INFO L226 Difference]: Without dead ends: 41 [2020-04-18 15:35:10,245 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:35:10,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-04-18 15:35:10,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-04-18 15:35:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-04-18 15:35:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 60 transitions. [2020-04-18 15:35:10,250 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 60 transitions. Word has length 9 [2020-04-18 15:35:10,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:35:10,250 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 60 transitions. [2020-04-18 15:35:10,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 15:35:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 60 transitions. [2020-04-18 15:35:10,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:35:10,251 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:35:10,251 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:35:10,252 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:35:10,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:10,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1686734005, now seen corresponding path program 1 times [2020-04-18 15:35:10,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:35:10,253 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2020794358] [2020-04-18 15:35:10,253 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:10,254 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions. [2020-04-18 15:35:10,254 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-04-18 15:35:10,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:35:10,254 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:35:10,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:10,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1687996405, now seen corresponding path program 2 times [2020-04-18 15:35:10,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:35:10,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687925924] [2020-04-18 15:35:10,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:35:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:35:10,297 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 15:35:10,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687925924] [2020-04-18 15:35:10,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:35:10,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:35:10,298 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:35:10,299 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:10,300 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-04-18 15:35:10,300 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:35:10,303 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:35:10,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:35:10,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:35:10,304 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-04-18 15:35:10,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:10,307 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2020-04-18 15:35:10,307 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-04-18 15:35:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:35:10,307 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:35:10,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:10,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1687948045, now seen corresponding path program 3 times [2020-04-18 15:35:10,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:35:10,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577204269] [2020-04-18 15:35:10,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:35:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:35:10,339 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 15:35:10,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577204269] [2020-04-18 15:35:10,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:35:10,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:35:10,340 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:35:10,341 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:10,342 INFO L259 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-04-18 15:35:10,342 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:35:10,348 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:35:10,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:35:10,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:35:10,349 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 3 states. [2020-04-18 15:35:10,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:10,362 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2020-04-18 15:35:10,362 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-04-18 15:35:10,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:35:10,363 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2020794358] [2020-04-18 15:35:10,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:35:10,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:35:10,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2020794358] [2020-04-18 15:35:10,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:35:10,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:35:10,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:35:10,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:35:10,364 INFO L87 Difference]: Start difference. First operand 39 states and 60 transitions. Second operand 4 states. [2020-04-18 15:35:10,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:10,387 INFO L93 Difference]: Finished difference Result 42 states and 57 transitions. [2020-04-18 15:35:10,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 15:35:10,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 15:35:10,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:35:10,388 INFO L225 Difference]: With dead ends: 42 [2020-04-18 15:35:10,389 INFO L226 Difference]: Without dead ends: 31 [2020-04-18 15:35:10,389 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:35:10,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-04-18 15:35:10,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2020-04-18 15:35:10,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-04-18 15:35:10,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-04-18 15:35:10,393 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-04-18 15:35:10,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:35:10,394 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-04-18 15:35:10,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:35:10,394 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-04-18 15:35:10,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:35:10,394 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:35:10,395 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:35:10,395 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:35:10,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:10,395 INFO L82 PathProgramCache]: Analyzing trace with hash -881401391, now seen corresponding path program 1 times [2020-04-18 15:35:10,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:35:10,396 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1084919305] [2020-04-18 15:35:10,396 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:10,397 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 62 transitions. [2020-04-18 15:35:10,397 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-04-18 15:35:10,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:35:10,398 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:35:10,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:10,399 INFO L82 PathProgramCache]: Analyzing trace with hash -856780571, now seen corresponding path program 2 times [2020-04-18 15:35:10,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:35:10,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154625114] [2020-04-18 15:35:10,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:35:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:35:10,454 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 15:35:10,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154625114] [2020-04-18 15:35:10,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:35:10,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:35:10,457 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:35:10,458 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:10,460 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-04-18 15:35:10,461 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:35:10,486 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 15:35:10,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:35:10,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:35:10,487 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 4 states. [2020-04-18 15:35:10,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:10,500 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2020-04-18 15:35:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 73 transitions. [2020-04-18 15:35:10,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:35:10,501 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:35:10,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:10,504 INFO L82 PathProgramCache]: Analyzing trace with hash -855336731, now seen corresponding path program 3 times [2020-04-18 15:35:10,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:35:10,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921945334] [2020-04-18 15:35:10,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:35:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:35:10,546 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 15:35:10,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921945334] [2020-04-18 15:35:10,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:35:10,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:35:10,547 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:35:10,548 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:10,550 INFO L259 McrAutomatonBuilder]: Finished intersection with 25 states and 38 transitions. [2020-04-18 15:35:10,551 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:35:10,567 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:35:10,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:35:10,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:35:10,568 INFO L87 Difference]: Start difference. First operand 44 states and 73 transitions. Second operand 4 states. [2020-04-18 15:35:10,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:10,593 INFO L93 Difference]: Finished difference Result 50 states and 78 transitions. [2020-04-18 15:35:10,593 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 78 transitions. [2020-04-18 15:35:10,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:35:10,593 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:35:10,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:35:10,594 INFO L82 PathProgramCache]: Analyzing trace with hash -881401391, now seen corresponding path program 4 times [2020-04-18 15:35:10,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:35:10,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695572044] [2020-04-18 15:35:10,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:35:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:35:10,652 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 15:35:10,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695572044] [2020-04-18 15:35:10,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:35:10,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:35:10,653 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:35:10,653 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:35:10,656 INFO L259 McrAutomatonBuilder]: Finished intersection with 21 states and 29 transitions. [2020-04-18 15:35:10,656 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:35:10,685 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 15:35:10,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:35:10,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:35:10,686 INFO L87 Difference]: Start difference. First operand 50 states and 78 transitions. Second operand 6 states. [2020-04-18 15:35:10,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:10,714 INFO L93 Difference]: Finished difference Result 50 states and 78 transitions. [2020-04-18 15:35:10,714 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 78 transitions. [2020-04-18 15:35:10,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:35:10,715 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1084919305] [2020-04-18 15:35:10,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:35:10,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:35:10,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1084919305] [2020-04-18 15:35:10,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 15:35:10,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:35:10,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 15:35:10,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-04-18 15:35:10,716 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 8 states. [2020-04-18 15:35:10,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:35:10,781 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2020-04-18 15:35:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 15:35:10,782 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-04-18 15:35:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:35:10,782 INFO L225 Difference]: With dead ends: 25 [2020-04-18 15:35:10,782 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:35:10,783 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-04-18 15:35:10,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:35:10,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:35:10,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:35:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:35:10,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-04-18 15:35:10,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:35:10,787 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:35:10,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 15:35:10,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:35:10,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:35:10,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:35:10 BasicIcfg [2020-04-18 15:35:10,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:35:10,800 INFO L168 Benchmark]: Toolchain (without parser) took 4316.07 ms. Allocated memory was 146.3 MB in the beginning and 248.0 MB in the end (delta: 101.7 MB). Free memory was 102.5 MB in the beginning and 100.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 103.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:35:10,801 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 15:35:10,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.22 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.5 MB in the beginning and 161.1 MB in the end (delta: -60.6 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-04-18 15:35:10,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.79 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 15:35:10,805 INFO L168 Benchmark]: Boogie Preprocessor took 26.42 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 157.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:35:10,807 INFO L168 Benchmark]: RCFGBuilder took 432.12 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 138.2 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-04-18 15:35:10,811 INFO L168 Benchmark]: TraceAbstraction took 3090.99 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 137.6 MB in the beginning and 100.9 MB in the end (delta: 36.7 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-04-18 15:35:10,822 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.22 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.5 MB in the beginning and 161.1 MB in the end (delta: -60.6 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.79 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.42 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 157.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.12 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 138.2 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3090.99 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 137.6 MB in the beginning and 100.9 MB in the end (delta: 36.7 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 59 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 7 FixpointIterations, 11 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 379 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1300 CheckedPairsTotal, 46 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 82 SDtfs, 35 SDslu, 96 SDs, 0 SdLazy, 59 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 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...