/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/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 11:52:15,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 11:52:15,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 11:52:15,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 11:52:15,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 11:52:15,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 11:52:15,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 11:52:15,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 11:52:15,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 11:52:15,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 11:52:15,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 11:52:15,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 11:52:15,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 11:52:15,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 11:52:15,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 11:52:15,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 11:52:15,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 11:52:15,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 11:52:15,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 11:52:15,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 11:52:15,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 11:52:15,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 11:52:15,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 11:52:15,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 11:52:15,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 11:52:15,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 11:52:15,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 11:52:15,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 11:52:15,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 11:52:15,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 11:52:15,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 11:52:15,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 11:52:15,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 11:52:15,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 11:52:15,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 11:52:15,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 11:52:15,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 11:52:15,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 11:52:15,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 11:52:15,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 11:52:15,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 11:52:15,272 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf [2020-04-18 11:52:15,286 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 11:52:15,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 11:52:15,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 11:52:15,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 11:52:15,288 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 11:52:15,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 11:52:15,288 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 11:52:15,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 11:52:15,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 11:52:15,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 11:52:15,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 11:52:15,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 11:52:15,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 11:52:15,290 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 11:52:15,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 11:52:15,290 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 11:52:15,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 11:52:15,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 11:52:15,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 11:52:15,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 11:52:15,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 11:52:15,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:52:15,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 11:52:15,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 11:52:15,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 11:52:15,292 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 11:52:15,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 11:52:15,292 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 11:52:15,292 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 11:52:15,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 11:52:15,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 11:52:15,553 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 11:52:15,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 11:52:15,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 11:52:15,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 11:52:15,573 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 11:52:15,575 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2020-04-18 11:52:15,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfcd301d6/4ca0fb9e7d7543cf92446f5702988fe4/FLAGb2466c225 [2020-04-18 11:52:16,178 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 11:52:16,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2020-04-18 11:52:16,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfcd301d6/4ca0fb9e7d7543cf92446f5702988fe4/FLAGb2466c225 [2020-04-18 11:52:16,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfcd301d6/4ca0fb9e7d7543cf92446f5702988fe4 [2020-04-18 11:52:16,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 11:52:16,512 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 11:52:16,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 11:52:16,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 11:52:16,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 11:52:16,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:52:16" (1/1) ... [2020-04-18 11:52:16,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6de72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:16, skipping insertion in model container [2020-04-18 11:52:16,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:52:16" (1/1) ... [2020-04-18 11:52:16,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 11:52:16,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 11:52:17,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:52:17,186 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 11:52:17,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:52:17,461 INFO L208 MainTranslator]: Completed translation [2020-04-18 11:52:17,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17 WrapperNode [2020-04-18 11:52:17,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 11:52:17,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 11:52:17,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 11:52:17,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 11:52:17,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17" (1/1) ... [2020-04-18 11:52:17,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17" (1/1) ... [2020-04-18 11:52:17,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 11:52:17,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 11:52:17,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 11:52:17,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 11:52:17,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17" (1/1) ... [2020-04-18 11:52:17,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17" (1/1) ... [2020-04-18 11:52:17,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17" (1/1) ... [2020-04-18 11:52:17,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17" (1/1) ... [2020-04-18 11:52:17,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17" (1/1) ... [2020-04-18 11:52:17,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17" (1/1) ... [2020-04-18 11:52:17,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17" (1/1) ... [2020-04-18 11:52:17,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 11:52:17,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 11:52:17,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 11:52:17,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 11:52:17,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:52:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 11:52:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 11:52:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 11:52:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-04-18 11:52:17,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-04-18 11:52:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-04-18 11:52:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-04-18 11:52:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 11:52:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 11:52:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 11:52:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 11:52:17,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 11:52:17,652 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 11:52:18,117 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 11:52:18,118 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-04-18 11:52:18,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:52:18 BoogieIcfgContainer [2020-04-18 11:52:18,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 11:52:18,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 11:52:18,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 11:52:18,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 11:52:18,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:52:16" (1/3) ... [2020-04-18 11:52:18,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675c985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:52:18, skipping insertion in model container [2020-04-18 11:52:18,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:17" (2/3) ... [2020-04-18 11:52:18,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675c985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:52:18, skipping insertion in model container [2020-04-18 11:52:18,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:52:18" (3/3) ... [2020-04-18 11:52:18,135 INFO L109 eAbstractionObserver]: Analyzing ICFG sync01.i [2020-04-18 11:52:18,146 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 11:52:18,147 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 11:52:18,155 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 11:52:18,156 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 11:52:18,190 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,191 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,191 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,192 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,193 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,193 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,193 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,194 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,194 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,194 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,195 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,195 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,195 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,196 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,196 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,196 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,196 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,196 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,197 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,197 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,198 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,198 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,198 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,198 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,199 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,199 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,203 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,203 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,204 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,204 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,204 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,204 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,206 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,212 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,212 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,212 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,213 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,213 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,213 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,213 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:18,235 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 11:52:18,255 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:52:18,255 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:52:18,255 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:52:18,255 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:52:18,256 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:52:18,256 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:52:18,256 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:52:18,256 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:52:18,272 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions, 204 flow [2020-04-18 11:52:18,274 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 204 flow [2020-04-18 11:52:18,339 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2020-04-18 11:52:18,339 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 11:52:18,344 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 91 events. 6/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2020-04-18 11:52:18,347 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 204 flow [2020-04-18 11:52:18,381 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2020-04-18 11:52:18,381 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 11:52:18,382 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 91 events. 6/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2020-04-18 11:52:18,384 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 840 [2020-04-18 11:52:18,385 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 11:52:20,102 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-04-18 11:52:20,483 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-04-18 11:52:20,697 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-04-18 11:52:21,356 WARN L192 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2020-04-18 11:52:21,630 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-04-18 11:52:21,641 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2947 [2020-04-18 11:52:21,641 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-04-18 11:52:21,645 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 34 transitions, 90 flow [2020-04-18 11:52:21,664 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-04-18 11:52:21,666 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-04-18 11:52:21,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 11:52:21,677 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:21,678 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:21,678 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:21,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:21,683 INFO L82 PathProgramCache]: Analyzing trace with hash 543680642, now seen corresponding path program 1 times [2020-04-18 11:52:21,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:21,689 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1256293136] [2020-04-18 11:52:21,702 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:21,719 INFO L259 McrAutomatonBuilder]: Finished intersection with 57 states and 104 transitions. [2020-04-18 11:52:21,721 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2020-04-18 11:52:21,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 11:52:21,723 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:21,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:21,723 INFO L82 PathProgramCache]: Analyzing trace with hash 543680642, now seen corresponding path program 2 times [2020-04-18 11:52:21,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:21,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523065448] [2020-04-18 11:52:21,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:21,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523065448] [2020-04-18 11:52:21,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:21,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:52:21,904 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:21,906 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:21,922 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 49 transitions. [2020-04-18 11:52:21,923 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:21,931 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 11:52:21,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 11:52:21,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:52:21,936 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2020-04-18 11:52:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:21,950 INFO L93 Difference]: Finished difference Result 57 states and 104 transitions. [2020-04-18 11:52:21,950 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 104 transitions. [2020-04-18 11:52:21,955 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:21,956 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1256293136] [2020-04-18 11:52:21,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:21,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:52:21,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1256293136] [2020-04-18 11:52:21,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 11:52:21,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:21,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 11:52:21,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:52:21,971 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 2 states. [2020-04-18 11:52:21,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:21,984 INFO L93 Difference]: Finished difference Result 198 states and 455 transitions. [2020-04-18 11:52:21,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 11:52:21,986 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2020-04-18 11:52:21,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:22,005 INFO L225 Difference]: With dead ends: 198 [2020-04-18 11:52:22,006 INFO L226 Difference]: Without dead ends: 197 [2020-04-18 11:52:22,009 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:52:22,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-04-18 11:52:22,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-04-18 11:52:22,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-04-18 11:52:22,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 454 transitions. [2020-04-18 11:52:22,072 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 454 transitions. Word has length 17 [2020-04-18 11:52:22,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:22,072 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 454 transitions. [2020-04-18 11:52:22,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 11:52:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 454 transitions. [2020-04-18 11:52:22,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:52:22,074 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:22,074 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:22,075 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:22,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:22,075 INFO L82 PathProgramCache]: Analyzing trace with hash -142821842, now seen corresponding path program 1 times [2020-04-18 11:52:22,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:22,076 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [936116656] [2020-04-18 11:52:22,076 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:22,079 INFO L259 McrAutomatonBuilder]: Finished intersection with 107 states and 216 transitions. [2020-04-18 11:52:22,080 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-04-18 11:52:22,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:52:22,082 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:22,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:22,082 INFO L82 PathProgramCache]: Analyzing trace with hash -142821842, now seen corresponding path program 2 times [2020-04-18 11:52:22,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:22,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153029048] [2020-04-18 11:52:22,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:22,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153029048] [2020-04-18 11:52:22,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:22,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:52:22,188 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:22,191 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:22,207 INFO L259 McrAutomatonBuilder]: Finished intersection with 54 states and 91 transitions. [2020-04-18 11:52:22,208 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:22,223 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 11:52:22,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:52:22,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:52:22,224 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-04-18 11:52:22,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:22,248 INFO L93 Difference]: Finished difference Result 138 states and 268 transitions. [2020-04-18 11:52:22,248 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 268 transitions. [2020-04-18 11:52:22,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:52:22,249 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:52:22,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:22,250 INFO L82 PathProgramCache]: Analyzing trace with hash 654447530, now seen corresponding path program 3 times [2020-04-18 11:52:22,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:22,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330749557] [2020-04-18 11:52:22,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:22,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:22,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330749557] [2020-04-18 11:52:22,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:22,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:52:22,331 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:22,334 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:22,342 INFO L259 McrAutomatonBuilder]: Finished intersection with 56 states and 95 transitions. [2020-04-18 11:52:22,342 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:22,350 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 11:52:22,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:52:22,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:52:22,351 INFO L87 Difference]: Start difference. First operand 138 states and 268 transitions. Second operand 4 states. [2020-04-18 11:52:22,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:22,376 INFO L93 Difference]: Finished difference Result 182 states and 330 transitions. [2020-04-18 11:52:22,377 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 330 transitions. [2020-04-18 11:52:22,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:52:22,377 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:52:22,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:22,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1691176798, now seen corresponding path program 4 times [2020-04-18 11:52:22,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:22,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93451173] [2020-04-18 11:52:22,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:22,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93451173] [2020-04-18 11:52:22,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:22,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 11:52:22,441 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:22,444 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:22,450 INFO L259 McrAutomatonBuilder]: Finished intersection with 47 states and 71 transitions. [2020-04-18 11:52:22,450 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:22,475 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:52:22,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:52:22,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-04-18 11:52:22,475 INFO L87 Difference]: Start difference. First operand 182 states and 330 transitions. Second operand 5 states. [2020-04-18 11:52:22,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:22,514 INFO L93 Difference]: Finished difference Result 182 states and 330 transitions. [2020-04-18 11:52:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 330 transitions. [2020-04-18 11:52:22,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:22,515 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [936116656] [2020-04-18 11:52:22,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:22,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 11:52:22,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [936116656] [2020-04-18 11:52:22,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 11:52:22,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:22,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 11:52:22,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-04-18 11:52:22,517 INFO L87 Difference]: Start difference. First operand 197 states and 454 transitions. Second operand 8 states. [2020-04-18 11:52:22,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:22,782 INFO L93 Difference]: Finished difference Result 90 states and 154 transitions. [2020-04-18 11:52:22,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 11:52:22,783 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-04-18 11:52:22,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:22,784 INFO L225 Difference]: With dead ends: 90 [2020-04-18 11:52:22,784 INFO L226 Difference]: Without dead ends: 54 [2020-04-18 11:52:22,785 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-04-18 11:52:22,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-18 11:52:22,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-18 11:52:22,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-18 11:52:22,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 83 transitions. [2020-04-18 11:52:22,790 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 83 transitions. Word has length 21 [2020-04-18 11:52:22,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:22,790 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 83 transitions. [2020-04-18 11:52:22,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 11:52:22,790 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 83 transitions. [2020-04-18 11:52:22,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:52:22,791 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:22,791 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:22,791 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:22,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:22,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1351822234, now seen corresponding path program 1 times [2020-04-18 11:52:22,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:22,792 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1330920139] [2020-04-18 11:52:22,793 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:22,795 INFO L259 McrAutomatonBuilder]: Finished intersection with 107 states and 216 transitions. [2020-04-18 11:52:22,796 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-04-18 11:52:22,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:52:22,797 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:22,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:22,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1051669946, now seen corresponding path program 2 times [2020-04-18 11:52:22,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:22,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361211] [2020-04-18 11:52:22,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:22,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:22,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361211] [2020-04-18 11:52:22,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:22,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:52:22,848 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:22,850 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:22,856 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 79 transitions. [2020-04-18 11:52:22,856 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:22,867 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 11:52:22,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:52:22,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:52:22,867 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-04-18 11:52:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:22,885 INFO L93 Difference]: Finished difference Result 132 states and 256 transitions. [2020-04-18 11:52:22,885 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 256 transitions. [2020-04-18 11:52:22,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:52:22,885 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:52:22,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:22,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1848939318, now seen corresponding path program 3 times [2020-04-18 11:52:22,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:22,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573208209] [2020-04-18 11:52:22,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:22,955 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 11:52:22,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573208209] [2020-04-18 11:52:22,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:22,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:52:22,956 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:22,960 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:22,967 INFO L259 McrAutomatonBuilder]: Finished intersection with 44 states and 71 transitions. [2020-04-18 11:52:22,967 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:22,975 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 11:52:22,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:52:22,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:52:22,976 INFO L87 Difference]: Start difference. First operand 132 states and 256 transitions. Second operand 4 states. [2020-04-18 11:52:23,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:23,003 INFO L93 Difference]: Finished difference Result 176 states and 318 transitions. [2020-04-18 11:52:23,003 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 318 transitions. [2020-04-18 11:52:23,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 11:52:23,006 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:52:23,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:23,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1351822234, now seen corresponding path program 4 times [2020-04-18 11:52:23,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:23,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172028334] [2020-04-18 11:52:23,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:23,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:23,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172028334] [2020-04-18 11:52:23,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:23,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 11:52:23,159 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:23,161 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:23,164 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 41 transitions. [2020-04-18 11:52:23,165 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:23,207 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 11:52:23,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 11:52:23,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-04-18 11:52:23,209 INFO L87 Difference]: Start difference. First operand 176 states and 318 transitions. Second operand 8 states. [2020-04-18 11:52:23,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:23,326 INFO L93 Difference]: Finished difference Result 176 states and 318 transitions. [2020-04-18 11:52:23,326 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 318 transitions. [2020-04-18 11:52:23,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:23,328 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1330920139] [2020-04-18 11:52:23,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:23,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 11:52:23,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1330920139] [2020-04-18 11:52:23,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 11:52:23,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:23,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 11:52:23,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-04-18 11:52:23,329 INFO L87 Difference]: Start difference. First operand 54 states and 83 transitions. Second operand 9 states. [2020-04-18 11:52:23,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:23,496 INFO L93 Difference]: Finished difference Result 53 states and 82 transitions. [2020-04-18 11:52:23,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 11:52:23,497 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-04-18 11:52:23,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:23,497 INFO L225 Difference]: With dead ends: 53 [2020-04-18 11:52:23,497 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 11:52:23,498 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2020-04-18 11:52:23,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 11:52:23,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 11:52:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 11:52:23,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 11:52:23,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-04-18 11:52:23,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:23,500 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 11:52:23,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 11:52:23,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 11:52:23,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:23,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:52:23 BasicIcfg [2020-04-18 11:52:23,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 11:52:23,506 INFO L168 Benchmark]: Toolchain (without parser) took 7008.57 ms. Allocated memory was 139.5 MB in the beginning and 278.9 MB in the end (delta: 139.5 MB). Free memory was 100.7 MB in the beginning and 145.1 MB in the end (delta: -44.4 MB). Peak memory consumption was 95.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:23,507 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 11:52:23,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 949.02 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 98.7 MB in the beginning and 138.2 MB in the end (delta: -39.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:23,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.28 ms. Allocated memory is still 203.4 MB. Free memory was 138.2 MB in the beginning and 135.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:23,509 INFO L168 Benchmark]: Boogie Preprocessor took 40.46 ms. Allocated memory is still 203.4 MB. Free memory was 135.6 MB in the beginning and 133.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:23,510 INFO L168 Benchmark]: RCFGBuilder took 533.99 ms. Allocated memory is still 203.4 MB. Free memory was 133.5 MB in the beginning and 107.1 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:23,511 INFO L168 Benchmark]: TraceAbstraction took 5378.31 ms. Allocated memory was 203.4 MB in the beginning and 278.9 MB in the end (delta: 75.5 MB). Free memory was 107.1 MB in the beginning and 145.1 MB in the end (delta: -38.0 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:23,515 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 139.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 949.02 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 98.7 MB in the beginning and 138.2 MB in the end (delta: -39.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 86.28 ms. Allocated memory is still 203.4 MB. Free memory was 138.2 MB in the beginning and 135.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.46 ms. Allocated memory is still 203.4 MB. Free memory was 135.6 MB in the beginning and 133.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 533.99 ms. Allocated memory is still 203.4 MB. Free memory was 133.5 MB in the beginning and 107.1 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5378.31 ms. Allocated memory was 203.4 MB in the beginning and 278.9 MB in the end (delta: 75.5 MB). Free memory was 107.1 MB in the beginning and 145.1 MB in the end (delta: -38.0 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.3s, 91 ProgramPointsBefore, 35 ProgramPointsAfterwards, 91 TransitionsBefore, 34 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 8 FixpointIterations, 43 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 406 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2947 CheckedPairsTotal, 65 TotalNumberOfCompositions - PositiveResult [Line: 947]: 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, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 79 SDtfs, 93 SDslu, 125 SDs, 0 SdLazy, 138 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred 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, 3 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...