/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/thin001_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:46:08,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:46:08,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:46:08,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:46:08,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:46:08,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:46:08,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:46:08,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:46:08,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:46:08,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:46:08,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:46:08,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:46:08,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:46:08,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:46:08,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:46:08,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:46:08,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:46:08,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:46:08,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:46:08,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:46:08,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:46:08,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:46:08,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:46:08,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:46:08,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:46:08,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:46:08,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:46:08,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:46:08,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:46:08,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:46:08,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:46:08,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:46:08,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:46:08,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:46:08,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:46:08,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:46:08,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:46:08,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:46:08,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:46:08,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:46:08,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:46:08,163 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 15:46:08,178 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:46:08,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:46:08,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:46:08,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:46:08,179 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:46:08,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:46:08,180 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:46:08,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:46:08,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:46:08,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:46:08,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:46:08,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:46:08,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:46:08,181 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:46:08,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:46:08,182 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:46:08,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:46:08,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:46:08,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:46:08,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:46:08,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:46:08,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:46:08,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:46:08,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:46:08,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:46:08,184 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:46:08,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:46:08,184 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:46:08,184 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:46:08,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:46:08,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:46:08,464 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:46:08,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:46:08,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:46:08,488 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:46:08,488 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:46:08,490 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2020-04-18 15:46:08,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff6df5a1c/d5fe05761d9b45e78d64aa3bfe04eda9/FLAG9f38c146e [2020-04-18 15:46:09,144 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:46:09,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2020-04-18 15:46:09,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff6df5a1c/d5fe05761d9b45e78d64aa3bfe04eda9/FLAG9f38c146e [2020-04-18 15:46:09,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff6df5a1c/d5fe05761d9b45e78d64aa3bfe04eda9 [2020-04-18 15:46:09,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:46:09,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:46:09,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:46:09,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:46:09,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:46:09,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:46:09" (1/1) ... [2020-04-18 15:46:09,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f87ec12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:09, skipping insertion in model container [2020-04-18 15:46:09,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:46:09" (1/1) ... [2020-04-18 15:46:09,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:46:09,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:46:09,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:46:09,938 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:46:10,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:46:10,169 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:46:10,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10 WrapperNode [2020-04-18 15:46:10,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:46:10,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:46:10,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:46:10,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:46:10,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10" (1/1) ... [2020-04-18 15:46:10,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10" (1/1) ... [2020-04-18 15:46:10,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:46:10,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:46:10,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:46:10,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:46:10,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10" (1/1) ... [2020-04-18 15:46:10,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10" (1/1) ... [2020-04-18 15:46:10,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10" (1/1) ... [2020-04-18 15:46:10,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10" (1/1) ... [2020-04-18 15:46:10,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10" (1/1) ... [2020-04-18 15:46:10,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10" (1/1) ... [2020-04-18 15:46:10,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10" (1/1) ... [2020-04-18 15:46:10,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:46:10,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:46:10,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:46:10,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:46:10,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10" (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 15:46:10,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:46:10,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:46:10,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:46:10,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:46:10,310 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 15:46:10,311 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 15:46:10,311 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 15:46:10,311 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 15:46:10,311 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 15:46:10,311 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 15:46:10,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:46:10,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:46:10,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:46:10,313 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 15:46:10,668 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:46:10,668 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 15:46:10,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:46:10 BoogieIcfgContainer [2020-04-18 15:46:10,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:46:10,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:46:10,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:46:10,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:46:10,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:46:09" (1/3) ... [2020-04-18 15:46:10,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e844c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:46:10, skipping insertion in model container [2020-04-18 15:46:10,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:10" (2/3) ... [2020-04-18 15:46:10,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e844c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:46:10, skipping insertion in model container [2020-04-18 15:46:10,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:46:10" (3/3) ... [2020-04-18 15:46:10,680 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.opt.i [2020-04-18 15:46:10,699 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:46:10,700 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:46:10,706 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:46:10,707 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:46:10,750 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,750 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,750 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,751 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,751 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,752 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,752 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,753 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,753 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,753 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,754 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,754 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,754 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,755 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,755 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,755 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,755 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,756 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,760 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,760 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,761 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,761 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,770 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,772 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,773 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,773 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,785 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,786 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,786 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,786 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:10,810 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 15:46:10,827 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:46:10,827 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:46:10,827 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:46:10,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:46:10,828 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:46:10,828 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:46:10,828 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:46:10,828 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:46:10,843 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-04-18 15:46:10,845 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 15:46:10,896 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 15:46:10,897 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:46:10,902 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:46:10,905 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 15:46:10,926 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 15:46:10,926 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:46:10,927 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:46:10,929 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 15:46:10,930 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:46:12,188 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 15:46:12,297 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-04-18 15:46:12,297 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-04-18 15:46:12,302 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-18 15:46:12,348 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-18 15:46:12,350 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-18 15:46:12,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:46:12,362 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:12,363 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:12,364 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:12,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:12,370 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-04-18 15:46:12,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:12,379 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [961873346] [2020-04-18 15:46:12,396 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:12,411 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:46:12,414 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-04-18 15:46:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:46:12,415 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:12,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:12,417 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 2 times [2020-04-18 15:46:12,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:12,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877288286] [2020-04-18 15:46:12,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:12,571 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 15:46:12,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877288286] [2020-04-18 15:46:12,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:12,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:46:12,574 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:12,575 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:12,577 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:46:12,578 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:12,581 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:46:12,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:46:12,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:46:12,587 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2020-04-18 15:46:12,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:12,590 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-04-18 15:46:12,590 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-04-18 15:46:12,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:12,591 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [961873346] [2020-04-18 15:46:12,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:12,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:46:12,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [961873346] [2020-04-18 15:46:12,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 15:46:12,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:12,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:46:12,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:46:12,599 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-18 15:46:12,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:12,619 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-18 15:46:12,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 15:46:12,621 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-18 15:46:12,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:12,637 INFO L225 Difference]: With dead ends: 362 [2020-04-18 15:46:12,637 INFO L226 Difference]: Without dead ends: 298 [2020-04-18 15:46:12,639 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 15:46:12,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-18 15:46:12,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-18 15:46:12,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-18 15:46:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-18 15:46:12,718 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-18 15:46:12,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:12,719 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-18 15:46:12,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 15:46:12,719 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-18 15:46:12,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:46:12,722 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:12,722 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:12,722 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:12,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:12,723 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-04-18 15:46:12,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:12,724 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [63298863] [2020-04-18 15:46:12,725 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:12,726 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:46:12,726 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 15:46:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:46:12,726 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:12,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:12,727 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 2 times [2020-04-18 15:46:12,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:12,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717337157] [2020-04-18 15:46:12,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:12,912 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 15:46:12,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717337157] [2020-04-18 15:46:12,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:12,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:46:12,913 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:12,914 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:12,916 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:46:12,916 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:12,931 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:46:12,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:12,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:46:12,932 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-04-18 15:46:12,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:12,943 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-04-18 15:46:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-04-18 15:46:12,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:12,944 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [63298863] [2020-04-18 15:46:12,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:12,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:46:12,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [63298863] [2020-04-18 15:46:12,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:46:12,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:12,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:12,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:46:12,947 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-04-18 15:46:12,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:12,986 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-04-18 15:46:12,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:46:12,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 15:46:12,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:12,994 INFO L225 Difference]: With dead ends: 330 [2020-04-18 15:46:12,994 INFO L226 Difference]: Without dead ends: 266 [2020-04-18 15:46:12,997 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 15:46:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-04-18 15:46:13,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-04-18 15:46:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-04-18 15:46:13,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-04-18 15:46:13,032 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-04-18 15:46:13,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:13,033 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-04-18 15:46:13,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:46:13,033 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-04-18 15:46:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:46:13,035 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:13,035 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:13,036 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:13,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:13,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-04-18 15:46:13,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:13,037 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1408468977] [2020-04-18 15:46:13,038 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:13,038 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-04-18 15:46:13,039 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-04-18 15:46:13,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:46:13,041 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:13,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:13,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 2 times [2020-04-18 15:46:13,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:13,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289548710] [2020-04-18 15:46:13,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:13,147 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 15:46:13,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289548710] [2020-04-18 15:46:13,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:13,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:46:13,149 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:13,151 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:13,153 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-04-18 15:46:13,153 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:13,164 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:46:13,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:13,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:46:13,165 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2020-04-18 15:46:13,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:13,174 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-04-18 15:46:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-04-18 15:46:13,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:13,176 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1408468977] [2020-04-18 15:46:13,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:13,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:46:13,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1408468977] [2020-04-18 15:46:13,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:46:13,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:13,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:13,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:46:13,178 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-04-18 15:46:13,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:13,199 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-04-18 15:46:13,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:46:13,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-18 15:46:13,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:13,203 INFO L225 Difference]: With dead ends: 290 [2020-04-18 15:46:13,204 INFO L226 Difference]: Without dead ends: 242 [2020-04-18 15:46:13,206 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 15:46:13,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-04-18 15:46:13,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-04-18 15:46:13,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-04-18 15:46:13,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-04-18 15:46:13,256 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-04-18 15:46:13,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:13,256 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-04-18 15:46:13,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:46:13,256 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-04-18 15:46:13,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:46:13,258 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:13,258 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:13,258 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:13,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:13,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-04-18 15:46:13,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:13,259 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [985278450] [2020-04-18 15:46:13,259 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:13,260 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 42 transitions. [2020-04-18 15:46:13,261 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-04-18 15:46:13,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:46:13,261 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:13,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:13,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 2 times [2020-04-18 15:46:13,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:13,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70780878] [2020-04-18 15:46:13,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:13,338 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 15:46:13,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70780878] [2020-04-18 15:46:13,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:13,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:46:13,339 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:13,340 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:13,343 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-04-18 15:46:13,343 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:13,402 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:46:13,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:46:13,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:46:13,403 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2020-04-18 15:46:13,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:13,427 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-04-18 15:46:13,427 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2020-04-18 15:46:13,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:13,428 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [985278450] [2020-04-18 15:46:13,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:13,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:46:13,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [985278450] [2020-04-18 15:46:13,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 15:46:13,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:13,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:46:13,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:46:13,430 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 6 states. [2020-04-18 15:46:13,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:13,489 INFO L93 Difference]: Finished difference Result 302 states and 815 transitions. [2020-04-18 15:46:13,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 15:46:13,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-04-18 15:46:13,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:13,493 INFO L225 Difference]: With dead ends: 302 [2020-04-18 15:46:13,493 INFO L226 Difference]: Without dead ends: 140 [2020-04-18 15:46:13,494 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:46:13,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-04-18 15:46:13,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-04-18 15:46:13,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-04-18 15:46:13,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 354 transitions. [2020-04-18 15:46:13,503 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 354 transitions. Word has length 11 [2020-04-18 15:46:13,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:13,503 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 354 transitions. [2020-04-18 15:46:13,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 15:46:13,504 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 354 transitions. [2020-04-18 15:46:13,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:46:13,506 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:13,506 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:13,506 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:13,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:13,507 INFO L82 PathProgramCache]: Analyzing trace with hash -234537171, now seen corresponding path program 1 times [2020-04-18 15:46:13,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:13,508 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [284808812] [2020-04-18 15:46:13,509 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:13,510 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 60 transitions. [2020-04-18 15:46:13,511 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-04-18 15:46:13,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:46:13,511 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:13,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:13,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1046934219, now seen corresponding path program 2 times [2020-04-18 15:46:13,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:13,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160106819] [2020-04-18 15:46:13,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:13,608 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 15:46:13,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160106819] [2020-04-18 15:46:13,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:13,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:46:13,609 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:13,610 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:13,612 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-04-18 15:46:13,613 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:13,622 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:46:13,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:13,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:46:13,623 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 4 states. [2020-04-18 15:46:13,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:13,635 INFO L93 Difference]: Finished difference Result 34 states and 60 transitions. [2020-04-18 15:46:13,636 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2020-04-18 15:46:13,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:13,636 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [284808812] [2020-04-18 15:46:13,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:13,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:46:13,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [284808812] [2020-04-18 15:46:13,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:46:13,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:13,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:13,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:46:13,638 INFO L87 Difference]: Start difference. First operand 140 states and 354 transitions. Second operand 4 states. [2020-04-18 15:46:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:13,649 INFO L93 Difference]: Finished difference Result 152 states and 368 transitions. [2020-04-18 15:46:13,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:46:13,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 15:46:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:13,651 INFO L225 Difference]: With dead ends: 152 [2020-04-18 15:46:13,651 INFO L226 Difference]: Without dead ends: 128 [2020-04-18 15:46:13,652 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 15:46:13,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-04-18 15:46:13,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-04-18 15:46:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-04-18 15:46:13,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 316 transitions. [2020-04-18 15:46:13,656 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 316 transitions. Word has length 12 [2020-04-18 15:46:13,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:13,657 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 316 transitions. [2020-04-18 15:46:13,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:46:13,657 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 316 transitions. [2020-04-18 15:46:13,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:46:13,658 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:13,658 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:13,658 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:13,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:13,659 INFO L82 PathProgramCache]: Analyzing trace with hash -762243594, now seen corresponding path program 1 times [2020-04-18 15:46:13,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:13,659 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [85224864] [2020-04-18 15:46:13,660 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:13,661 INFO L259 McrAutomatonBuilder]: Finished intersection with 62 states and 140 transitions. [2020-04-18 15:46:13,662 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2020-04-18 15:46:13,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:46:13,663 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:13,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:13,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1574640642, now seen corresponding path program 2 times [2020-04-18 15:46:13,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:13,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474280653] [2020-04-18 15:46:13,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:13,730 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 15:46:13,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474280653] [2020-04-18 15:46:13,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:13,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:46:13,731 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:13,732 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:13,736 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 70 transitions. [2020-04-18 15:46:13,736 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:13,809 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 15:46:13,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:46:13,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:46:13,809 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 7 states. [2020-04-18 15:46:13,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:13,863 INFO L93 Difference]: Finished difference Result 72 states and 153 transitions. [2020-04-18 15:46:13,863 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 153 transitions. [2020-04-18 15:46:13,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:46:13,863 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:46:13,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:13,864 INFO L82 PathProgramCache]: Analyzing trace with hash -762243594, now seen corresponding path program 3 times [2020-04-18 15:46:13,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:13,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77197120] [2020-04-18 15:46:13,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:13,916 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 15:46:13,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77197120] [2020-04-18 15:46:13,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:13,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:46:13,917 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:13,919 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:13,922 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 40 transitions. [2020-04-18 15:46:13,922 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:13,944 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:46:13,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:46:13,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-04-18 15:46:13,945 INFO L87 Difference]: Start difference. First operand 72 states and 153 transitions. Second operand 5 states. [2020-04-18 15:46:13,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:13,978 INFO L93 Difference]: Finished difference Result 72 states and 153 transitions. [2020-04-18 15:46:13,978 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 153 transitions. [2020-04-18 15:46:13,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:13,979 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [85224864] [2020-04-18 15:46:13,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:13,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:46:13,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [85224864] [2020-04-18 15:46:13,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 15:46:13,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:13,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 15:46:13,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-04-18 15:46:13,980 INFO L87 Difference]: Start difference. First operand 128 states and 316 transitions. Second operand 9 states. [2020-04-18 15:46:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:14,077 INFO L93 Difference]: Finished difference Result 170 states and 409 transitions. [2020-04-18 15:46:14,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 15:46:14,077 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2020-04-18 15:46:14,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:14,078 INFO L225 Difference]: With dead ends: 170 [2020-04-18 15:46:14,078 INFO L226 Difference]: Without dead ends: 80 [2020-04-18 15:46:14,079 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-04-18 15:46:14,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-04-18 15:46:14,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-04-18 15:46:14,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-04-18 15:46:14,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-04-18 15:46:14,083 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 13 [2020-04-18 15:46:14,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:14,083 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-04-18 15:46:14,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 15:46:14,083 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-04-18 15:46:14,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:46:14,084 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:14,084 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:14,084 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:14,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:14,085 INFO L82 PathProgramCache]: Analyzing trace with hash -627503362, now seen corresponding path program 1 times [2020-04-18 15:46:14,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:14,085 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [549191738] [2020-04-18 15:46:14,086 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:14,088 INFO L259 McrAutomatonBuilder]: Finished intersection with 90 states and 220 transitions. [2020-04-18 15:46:14,089 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-04-18 15:46:14,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:46:14,089 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:14,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:14,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1571173060, now seen corresponding path program 2 times [2020-04-18 15:46:14,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:14,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328129706] [2020-04-18 15:46:14,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:14,172 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 15:46:14,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328129706] [2020-04-18 15:46:14,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:14,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:46:14,174 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:14,175 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:14,181 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 93 transitions. [2020-04-18 15:46:14,182 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:14,195 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 15:46:14,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:46:14,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:46:14,196 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 5 states. [2020-04-18 15:46:14,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:14,218 INFO L93 Difference]: Finished difference Result 90 states and 220 transitions. [2020-04-18 15:46:14,218 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 220 transitions. [2020-04-18 15:46:14,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:14,219 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [549191738] [2020-04-18 15:46:14,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:14,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:46:14,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [549191738] [2020-04-18 15:46:14,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 15:46:14,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:14,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:46:14,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:46:14,221 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 5 states. [2020-04-18 15:46:14,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:14,256 INFO L93 Difference]: Finished difference Result 68 states and 144 transitions. [2020-04-18 15:46:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 15:46:14,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-18 15:46:14,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:14,259 INFO L225 Difference]: With dead ends: 68 [2020-04-18 15:46:14,259 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:46:14,259 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:46:14,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:46:14,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:46:14,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:46:14,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:46:14,260 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-04-18 15:46:14,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:14,260 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:46:14,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 15:46:14,260 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:46:14,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:14,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:46:14 BasicIcfg [2020-04-18 15:46:14,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:46:14,272 INFO L168 Benchmark]: Toolchain (without parser) took 4856.97 ms. Allocated memory was 135.3 MB in the beginning and 260.6 MB in the end (delta: 125.3 MB). Free memory was 98.0 MB in the beginning and 111.0 MB in the end (delta: -13.0 MB). Peak memory consumption was 112.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:46:14,273 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 135.3 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-18 15:46:14,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.86 ms. Allocated memory was 135.3 MB in the beginning and 217.6 MB in the end (delta: 82.3 MB). Free memory was 96.3 MB in the beginning and 183.4 MB in the end (delta: -87.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-04-18 15:46:14,275 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.38 ms. Allocated memory is still 217.6 MB. Free memory was 183.4 MB in the beginning and 180.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-04-18 15:46:14,277 INFO L168 Benchmark]: Boogie Preprocessor took 27.09 ms. Allocated memory is still 217.6 MB. Free memory was 180.7 MB in the beginning and 179.7 MB in the end (delta: 922.1 kB). Peak memory consumption was 922.1 kB. Max. memory is 7.1 GB. [2020-04-18 15:46:14,281 INFO L168 Benchmark]: RCFGBuilder took 425.07 ms. Allocated memory is still 217.6 MB. Free memory was 179.7 MB in the beginning and 156.4 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-04-18 15:46:14,282 INFO L168 Benchmark]: TraceAbstraction took 3591.79 ms. Allocated memory was 217.6 MB in the beginning and 260.6 MB in the end (delta: 43.0 MB). Free memory was 156.4 MB in the beginning and 111.0 MB in the end (delta: 45.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2020-04-18 15:46:14,291 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 135.3 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 739.86 ms. Allocated memory was 135.3 MB in the beginning and 217.6 MB in the end (delta: 82.3 MB). Free memory was 96.3 MB in the beginning and 183.4 MB in the end (delta: -87.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.38 ms. Allocated memory is still 217.6 MB. Free memory was 183.4 MB in the beginning and 180.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.09 ms. Allocated memory is still 217.6 MB. Free memory was 180.7 MB in the beginning and 179.7 MB in the end (delta: 922.1 kB). Peak memory consumption was 922.1 kB. Max. memory is 7.1 GB. * RCFGBuilder took 425.07 ms. Allocated memory is still 217.6 MB. Free memory was 179.7 MB in the beginning and 156.4 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3591.79 ms. Allocated memory was 217.6 MB in the beginning and 260.6 MB in the end (delta: 43.0 MB). Free memory was 156.4 MB in the beginning and 111.0 MB in the end (delta: 45.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 668 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 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 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 156 SDtfs, 184 SDslu, 260 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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...