/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/thin000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:45:25,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:45:25,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:45:25,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:45:25,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:45:25,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:45:25,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:45:25,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:45:25,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:45:25,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:45:25,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:45:25,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:45:25,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:45:25,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:45:25,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:45:25,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:45:25,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:45:25,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:45:25,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:45:25,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:45:25,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:45:25,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:45:25,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:45:25,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:45:25,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:45:25,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:45:25,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:45:25,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:45:25,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:45:25,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:45:25,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:45:25,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:45:25,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:45:25,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:45:25,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:45:25,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:45:25,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:45:25,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:45:25,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:45:25,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:45:25,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:45:25,340 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 15:45:25,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:45:25,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:45:25,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:45:25,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:45:25,372 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:45:25,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:45:25,372 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:45:25,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:45:25,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:45:25,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:45:25,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:45:25,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:45:25,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:45:25,375 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:45:25,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:45:25,375 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:45:25,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:45:25,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:45:25,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:45:25,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:45:25,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:45:25,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:45:25,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:45:25,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:45:25,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:45:25,378 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:45:25,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:45:25,378 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:45:25,378 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:45:25,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:45:25,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:45:25,646 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:45:25,657 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:45:25,661 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:45:25,663 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:45:25,663 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:45:25,665 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2020-04-18 15:45:25,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fec673e5/77d637d2b82646469ba6a96c01deba83/FLAGbeefa5c64 [2020-04-18 15:45:26,287 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:45:26,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2020-04-18 15:45:26,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fec673e5/77d637d2b82646469ba6a96c01deba83/FLAGbeefa5c64 [2020-04-18 15:45:26,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fec673e5/77d637d2b82646469ba6a96c01deba83 [2020-04-18 15:45:26,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:45:26,584 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:45:26,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:45:26,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:45:26,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:45:26,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:45:26" (1/1) ... [2020-04-18 15:45:26,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e294d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:26, skipping insertion in model container [2020-04-18 15:45:26,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:45:26" (1/1) ... [2020-04-18 15:45:26,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:45:26,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:45:27,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:45:27,151 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:45:27,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:45:27,263 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:45:27,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27 WrapperNode [2020-04-18 15:45:27,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:45:27,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:45:27,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:45:27,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:45:27,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27" (1/1) ... [2020-04-18 15:45:27,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27" (1/1) ... [2020-04-18 15:45:27,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:45:27,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:45:27,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:45:27,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:45:27,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27" (1/1) ... [2020-04-18 15:45:27,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27" (1/1) ... [2020-04-18 15:45:27,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27" (1/1) ... [2020-04-18 15:45:27,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27" (1/1) ... [2020-04-18 15:45:27,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27" (1/1) ... [2020-04-18 15:45:27,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27" (1/1) ... [2020-04-18 15:45:27,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27" (1/1) ... [2020-04-18 15:45:27,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:45:27,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:45:27,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:45:27,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:45:27,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27" (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 15:45:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:45:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:45:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:45:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:45:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 15:45:27,411 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 15:45:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 15:45:27,414 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 15:45:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:45:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:45:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:45:27,417 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 15:45:27,778 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:45:27,778 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 15:45:27,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:45:27 BoogieIcfgContainer [2020-04-18 15:45:27,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:45:27,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:45:27,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:45:27,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:45:27,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:45:26" (1/3) ... [2020-04-18 15:45:27,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645d8ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:45:27, skipping insertion in model container [2020-04-18 15:45:27,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:27" (2/3) ... [2020-04-18 15:45:27,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645d8ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:45:27, skipping insertion in model container [2020-04-18 15:45:27,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:45:27" (3/3) ... [2020-04-18 15:45:27,792 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_pso.opt.i [2020-04-18 15:45:27,801 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:45:27,801 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:45:27,808 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:45:27,809 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:45:27,833 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,833 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,834 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,834 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,835 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,835 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,835 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,836 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,836 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,836 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,837 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,837 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,841 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,841 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,842 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,842 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,852 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,852 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,853 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,853 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:27,869 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 15:45:27,887 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:45:27,887 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:45:27,888 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:45:27,888 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:45:27,888 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:45:27,888 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:45:27,889 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:45:27,889 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:45:27,905 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-04-18 15:45:27,907 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 15:45:27,947 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 15:45:27,948 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:45:27,955 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 15:45:27,958 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 15:45:27,982 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 15:45:27,982 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:45:27,983 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 15:45:27,984 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-04-18 15:45:27,985 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:45:29,365 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1165 [2020-04-18 15:45:29,366 INFO L214 etLargeBlockEncoding]: Total number of compositions: 48 [2020-04-18 15:45:29,372 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-04-18 15:45:29,384 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-04-18 15:45:29,387 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-04-18 15:45:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:45:29,394 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:45:29,394 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 15:45:29,395 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:45:29,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:29,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 1 times [2020-04-18 15:45:29,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:45:29,406 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1445771841] [2020-04-18 15:45:29,418 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:29,427 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 15:45:29,428 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 15:45:29,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:45:29,429 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:45:29,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:29,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 2 times [2020-04-18 15:45:29,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:29,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174049046] [2020-04-18 15:45:29,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:29,744 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 15:45:29,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174049046] [2020-04-18 15:45:29,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:29,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 15:45:29,749 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:29,752 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:29,754 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 15:45:29,755 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:29,768 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:29,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:29,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:29,774 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-04-18 15:45:29,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:29,779 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-04-18 15:45:29,779 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-04-18 15:45:29,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:45:29,780 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1445771841] [2020-04-18 15:45:29,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:45:29,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 15:45:29,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1445771841] [2020-04-18 15:45:29,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 15:45:29,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:45:29,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:29,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:29,789 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-04-18 15:45:29,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:29,814 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-04-18 15:45:29,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 15:45:29,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-04-18 15:45:29,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:45:29,826 INFO L225 Difference]: With dead ends: 70 [2020-04-18 15:45:29,826 INFO L226 Difference]: Without dead ends: 54 [2020-04-18 15:45:29,828 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:29,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-18 15:45:29,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-18 15:45:29,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-18 15:45:29,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-04-18 15:45:29,868 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-04-18 15:45:29,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:45:29,868 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-04-18 15:45:29,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 15:45:29,869 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-04-18 15:45:29,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 15:45:29,870 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:45:29,870 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:45:29,870 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:45:29,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:29,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 1 times [2020-04-18 15:45:29,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:45:29,871 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [783384492] [2020-04-18 15:45:29,871 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:29,872 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2020-04-18 15:45:29,873 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 15:45:29,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 15:45:29,873 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:45:29,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:29,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 2 times [2020-04-18 15:45:29,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:29,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786689062] [2020-04-18 15:45:29,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:29,922 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 15:45:29,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786689062] [2020-04-18 15:45:29,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:29,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 15:45:29,924 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:29,924 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:29,927 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 9 transitions. [2020-04-18 15:45:29,927 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:29,933 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:29,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:29,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:29,935 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-04-18 15:45:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:29,936 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2020-04-18 15:45:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-04-18 15:45:29,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:45:29,938 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [783384492] [2020-04-18 15:45:29,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:45:29,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 15:45:29,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [783384492] [2020-04-18 15:45:29,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 15:45:29,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:45:29,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:29,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:29,941 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 3 states. [2020-04-18 15:45:29,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:29,951 INFO L93 Difference]: Finished difference Result 51 states and 101 transitions. [2020-04-18 15:45:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 15:45:29,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 15:45:29,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:45:29,955 INFO L225 Difference]: With dead ends: 51 [2020-04-18 15:45:29,955 INFO L226 Difference]: Without dead ends: 51 [2020-04-18 15:45:29,957 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:29,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-04-18 15:45:29,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-04-18 15:45:29,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-04-18 15:45:29,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 101 transitions. [2020-04-18 15:45:29,970 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 101 transitions. Word has length 7 [2020-04-18 15:45:29,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:45:29,970 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 101 transitions. [2020-04-18 15:45:29,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 15:45:29,971 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 101 transitions. [2020-04-18 15:45:29,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:45:29,972 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:45:29,972 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:45:29,973 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:45:29,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:29,974 INFO L82 PathProgramCache]: Analyzing trace with hash -449361261, now seen corresponding path program 1 times [2020-04-18 15:45:29,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:45:29,975 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1435723830] [2020-04-18 15:45:29,976 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:29,978 INFO L259 McrAutomatonBuilder]: Finished intersection with 18 states and 28 transitions. [2020-04-18 15:45:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-04-18 15:45:29,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:45:29,980 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:45:29,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:29,980 INFO L82 PathProgramCache]: Analyzing trace with hash -449360091, now seen corresponding path program 2 times [2020-04-18 15:45:29,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:29,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141474006] [2020-04-18 15:45:29,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:30,039 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 15:45:30,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141474006] [2020-04-18 15:45:30,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:30,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:45:30,041 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:30,041 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:30,043 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 10 transitions. [2020-04-18 15:45:30,044 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:30,050 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:30,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:30,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:30,051 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-04-18 15:45:30,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:30,057 INFO L93 Difference]: Finished difference Result 20 states and 29 transitions. [2020-04-18 15:45:30,058 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2020-04-18 15:45:30,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:45:30,059 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:45:30,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:30,059 INFO L82 PathProgramCache]: Analyzing trace with hash -449361261, now seen corresponding path program 3 times [2020-04-18 15:45:30,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:30,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395394379] [2020-04-18 15:45:30,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:30,154 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 15:45:30,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395394379] [2020-04-18 15:45:30,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:30,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:45:30,155 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:30,156 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:30,157 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 21 transitions. [2020-04-18 15:45:30,157 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:30,170 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:30,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:45:30,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:45:30,171 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. Second operand 4 states. [2020-04-18 15:45:30,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:30,185 INFO L93 Difference]: Finished difference Result 20 states and 29 transitions. [2020-04-18 15:45:30,186 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2020-04-18 15:45:30,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:45:30,188 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1435723830] [2020-04-18 15:45:30,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:45:30,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:45:30,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1435723830] [2020-04-18 15:45:30,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 15:45:30,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:45:30,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:45:30,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:45:30,192 INFO L87 Difference]: Start difference. First operand 51 states and 101 transitions. Second operand 5 states. [2020-04-18 15:45:30,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:30,228 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-04-18 15:45:30,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:45:30,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-04-18 15:45:30,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:45:30,230 INFO L225 Difference]: With dead ends: 60 [2020-04-18 15:45:30,230 INFO L226 Difference]: Without dead ends: 36 [2020-04-18 15:45:30,230 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:45:30,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-04-18 15:45:30,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-04-18 15:45:30,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-04-18 15:45:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-04-18 15:45:30,236 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2020-04-18 15:45:30,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:45:30,236 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-04-18 15:45:30,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 15:45:30,236 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-04-18 15:45:30,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:45:30,237 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:45:30,237 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:45:30,237 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:45:30,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:30,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 1 times [2020-04-18 15:45:30,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:45:30,238 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1823212948] [2020-04-18 15:45:30,242 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:30,243 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 45 transitions. [2020-04-18 15:45:30,243 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-04-18 15:45:30,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:45:30,244 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:45:30,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:30,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1045260811, now seen corresponding path program 2 times [2020-04-18 15:45:30,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:30,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380988276] [2020-04-18 15:45:30,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:30,311 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 15:45:30,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380988276] [2020-04-18 15:45:30,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:30,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:45:30,312 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:30,313 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:30,317 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-04-18 15:45:30,317 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:30,321 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:30,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:30,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:30,322 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2020-04-18 15:45:30,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:30,327 INFO L93 Difference]: Finished difference Result 30 states and 49 transitions. [2020-04-18 15:45:30,328 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 49 transitions. [2020-04-18 15:45:30,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:45:30,331 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:45:30,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:30,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1045297081, now seen corresponding path program 3 times [2020-04-18 15:45:30,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:30,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816942414] [2020-04-18 15:45:30,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:30,393 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 15:45:30,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816942414] [2020-04-18 15:45:30,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:30,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:45:30,398 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:30,399 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:30,402 INFO L259 McrAutomatonBuilder]: Finished intersection with 18 states and 26 transitions. [2020-04-18 15:45:30,402 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:30,416 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:30,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:45:30,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:45:30,417 INFO L87 Difference]: Start difference. First operand 30 states and 49 transitions. Second operand 4 states. [2020-04-18 15:45:30,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:30,433 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-04-18 15:45:30,434 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-04-18 15:45:30,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:45:30,434 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:45:30,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:30,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 4 times [2020-04-18 15:45:30,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:30,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278329822] [2020-04-18 15:45:30,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:30,487 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 15:45:30,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278329822] [2020-04-18 15:45:30,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:30,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:45:30,488 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:30,489 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:30,491 INFO L259 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-04-18 15:45:30,491 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:30,555 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 15:45:30,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:45:30,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:45:30,556 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 5 states. [2020-04-18 15:45:30,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:30,572 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-04-18 15:45:30,572 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-04-18 15:45:30,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:45:30,573 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1823212948] [2020-04-18 15:45:30,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:45:30,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:45:30,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1823212948] [2020-04-18 15:45:30,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 15:45:30,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:45:30,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 15:45:30,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-04-18 15:45:30,575 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 8 states. [2020-04-18 15:45:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:30,631 INFO L93 Difference]: Finished difference Result 30 states and 50 transitions. [2020-04-18 15:45:30,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 15:45:30,633 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-04-18 15:45:30,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:45:30,634 INFO L225 Difference]: With dead ends: 30 [2020-04-18 15:45:30,634 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:45:30,635 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-04-18 15:45:30,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:45:30,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:45:30,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:45:30,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:45:30,636 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-04-18 15:45:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:45:30,637 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:45:30,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 15:45:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:45:30,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:45:30,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:45:30 BasicIcfg [2020-04-18 15:45:30,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:45:30,653 INFO L168 Benchmark]: Toolchain (without parser) took 4091.71 ms. Allocated memory was 140.0 MB in the beginning and 246.4 MB in the end (delta: 106.4 MB). Free memory was 103.1 MB in the beginning and 131.6 MB in the end (delta: -28.4 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:30,653 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 15:45:30,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.77 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 159.8 MB in the end (delta: -58.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:30,658 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.34 ms. Allocated memory is still 204.5 MB. Free memory was 159.8 MB in the beginning and 157.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:30,658 INFO L168 Benchmark]: Boogie Preprocessor took 26.68 ms. Allocated memory is still 204.5 MB. Free memory was 157.7 MB in the beginning and 156.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:30,660 INFO L168 Benchmark]: RCFGBuilder took 440.63 ms. Allocated memory is still 204.5 MB. Free memory was 156.3 MB in the beginning and 136.6 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:30,661 INFO L168 Benchmark]: TraceAbstraction took 2862.31 ms. Allocated memory was 204.5 MB in the beginning and 246.4 MB in the end (delta: 41.9 MB). Free memory was 135.9 MB in the beginning and 131.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:30,670 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 140.0 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 678.77 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 159.8 MB in the end (delta: -58.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.34 ms. Allocated memory is still 204.5 MB. Free memory was 159.8 MB in the beginning and 157.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.68 ms. Allocated memory is still 204.5 MB. Free memory was 157.7 MB in the beginning and 156.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 440.63 ms. Allocated memory is still 204.5 MB. Free memory was 156.3 MB in the beginning and 136.6 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2862.31 ms. Allocated memory was 204.5 MB in the beginning and 246.4 MB in the end (delta: 41.9 MB). Free memory was 135.9 MB in the beginning and 131.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 61 ProgramPointsBefore, 22 ProgramPointsAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 361 VarBasedMoverChecksPositive, 17 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1165 CheckedPairsTotal, 48 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 45 SDtfs, 57 SDslu, 53 SDs, 0 SdLazy, 20 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 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...