/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/safe032_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:39:57,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:39:57,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:39:57,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:39:57,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:39:57,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:39:57,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:39:57,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:39:57,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:39:57,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:39:57,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:39:57,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:39:57,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:39:57,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:39:57,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:39:57,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:39:57,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:39:57,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:39:57,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:39:57,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:39:57,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:39:57,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:39:57,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:39:57,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:39:57,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:39:57,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:39:57,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:39:57,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:39:57,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:39:57,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:39:57,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:39:57,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:39:57,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:39:57,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:39:57,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:39:57,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:39:57,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:39:57,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:39:57,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:39:57,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:39:57,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:39:57,297 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 15:39:57,318 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:39:57,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:39:57,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:39:57,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:39:57,321 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:39:57,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:39:57,321 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:39:57,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:39:57,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:39:57,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:39:57,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:39:57,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:39:57,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:39:57,324 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:39:57,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:39:57,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:39:57,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:39:57,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:39:57,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:39:57,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:39:57,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:39:57,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:39:57,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:39:57,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:39:57,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:39:57,326 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:39:57,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:39:57,327 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:39:57,327 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:39:57,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:39:57,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:39:57,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:39:57,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:39:57,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:39:57,619 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:39:57,619 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:39:57,620 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2020-04-18 15:39:57,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39376816f/4dc621be5b2547cb99ecdf8a47f11eba/FLAG127f8e2e2 [2020-04-18 15:39:58,247 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:39:58,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2020-04-18 15:39:58,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39376816f/4dc621be5b2547cb99ecdf8a47f11eba/FLAG127f8e2e2 [2020-04-18 15:39:58,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39376816f/4dc621be5b2547cb99ecdf8a47f11eba [2020-04-18 15:39:58,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:39:58,518 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:39:58,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:39:58,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:39:58,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:39:58,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:39:58" (1/1) ... [2020-04-18 15:39:58,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51600ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:58, skipping insertion in model container [2020-04-18 15:39:58,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:39:58" (1/1) ... [2020-04-18 15:39:58,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:39:58,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:39:59,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:39:59,136 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:39:59,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:39:59,287 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:39:59,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59 WrapperNode [2020-04-18 15:39:59,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:39:59,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:39:59,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:39:59,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:39:59,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59" (1/1) ... [2020-04-18 15:39:59,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59" (1/1) ... [2020-04-18 15:39:59,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:39:59,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:39:59,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:39:59,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:39:59,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59" (1/1) ... [2020-04-18 15:39:59,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59" (1/1) ... [2020-04-18 15:39:59,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59" (1/1) ... [2020-04-18 15:39:59,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59" (1/1) ... [2020-04-18 15:39:59,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59" (1/1) ... [2020-04-18 15:39:59,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59" (1/1) ... [2020-04-18 15:39:59,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59" (1/1) ... [2020-04-18 15:39:59,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:39:59,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:39:59,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:39:59,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:39:59,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59" (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 15:39:59,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:39:59,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:39:59,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:39:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:39:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 15:39:59,446 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 15:39:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 15:39:59,446 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 15:39:59,447 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 15:39:59,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 15:39:59,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:39:59,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:39:59,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:39:59,449 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 15:39:59,826 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:39:59,827 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 15:39:59,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:39:59 BoogieIcfgContainer [2020-04-18 15:39:59,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:39:59,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:39:59,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:39:59,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:39:59,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:39:58" (1/3) ... [2020-04-18 15:39:59,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5184a5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:39:59, skipping insertion in model container [2020-04-18 15:39:59,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:39:59" (2/3) ... [2020-04-18 15:39:59,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5184a5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:39:59, skipping insertion in model container [2020-04-18 15:39:59,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:39:59" (3/3) ... [2020-04-18 15:39:59,840 INFO L109 eAbstractionObserver]: Analyzing ICFG safe032_tso.opt.i [2020-04-18 15:39:59,850 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:39:59,850 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:39:59,857 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:39:59,858 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:39:59,880 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,881 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,881 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,881 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,882 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,882 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,883 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,883 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,883 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,883 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,884 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,884 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,885 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,885 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,885 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,885 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,886 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,886 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,890 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,890 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,891 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,891 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,896 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,897 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,897 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,897 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,901 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,901 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,901 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,901 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:39:59,923 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 15:39:59,947 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:39:59,947 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:39:59,948 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:39:59,948 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:39:59,948 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:39:59,948 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:39:59,948 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:39:59,949 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:39:59,964 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-04-18 15:39:59,967 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 15:40:00,010 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-18 15:40:00,010 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:40:00,015 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:40:00,018 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 15:40:00,038 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-18 15:40:00,039 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:40:00,039 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:40:00,042 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 15:40:00,043 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:40:01,311 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2365 [2020-04-18 15:40:01,311 INFO L214 etLargeBlockEncoding]: Total number of compositions: 53 [2020-04-18 15:40:01,314 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-18 15:40:01,343 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-18 15:40:01,347 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-18 15:40:01,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:40:01,358 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:40:01,359 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:40:01,359 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:40:01,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:01,367 INFO L82 PathProgramCache]: Analyzing trace with hash -589225259, now seen corresponding path program 1 times [2020-04-18 15:40:01,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:40:01,375 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [136765859] [2020-04-18 15:40:01,392 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:01,404 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:40:01,406 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-04-18 15:40:01,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:40:01,407 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:40:01,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:01,407 INFO L82 PathProgramCache]: Analyzing trace with hash -589225259, now seen corresponding path program 2 times [2020-04-18 15:40:01,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:01,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8896479] [2020-04-18 15:40:01,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:01,623 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 15:40:01,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8896479] [2020-04-18 15:40:01,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:01,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:40:01,626 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:01,628 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:01,634 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:40:01,635 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:01,638 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:40:01,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:40:01,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:40:01,647 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2020-04-18 15:40:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:01,651 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-04-18 15:40:01,651 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-04-18 15:40:01,652 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:40:01,652 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [136765859] [2020-04-18 15:40:01,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:40:01,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:40:01,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [136765859] [2020-04-18 15:40:01,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 15:40:01,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:40:01,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:40:01,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:40:01,659 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-18 15:40:01,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:01,677 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-18 15:40:01,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 15:40:01,678 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-18 15:40:01,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:40:01,694 INFO L225 Difference]: With dead ends: 362 [2020-04-18 15:40:01,694 INFO L226 Difference]: Without dead ends: 298 [2020-04-18 15:40:01,696 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:40:01,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-18 15:40:01,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-18 15:40:01,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-18 15:40:01,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-18 15:40:01,779 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-18 15:40:01,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:40:01,780 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-18 15:40:01,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 15:40:01,781 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-18 15:40:01,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:40:01,782 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:40:01,782 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:40:01,782 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:40:01,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:01,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1086118353, now seen corresponding path program 1 times [2020-04-18 15:40:01,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:40:01,783 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [327554036] [2020-04-18 15:40:01,784 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:01,785 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:40:01,785 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 15:40:01,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:40:01,785 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:40:01,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:01,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1086118353, now seen corresponding path program 2 times [2020-04-18 15:40:01,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:01,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644917655] [2020-04-18 15:40:01,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:01,886 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 15:40:01,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644917655] [2020-04-18 15:40:01,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:01,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:40:01,888 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:01,888 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:01,889 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:40:01,890 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:01,896 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:40:01,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:40:01,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:40:01,898 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-04-18 15:40:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:01,899 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-04-18 15:40:01,899 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-04-18 15:40:01,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:40:01,900 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [327554036] [2020-04-18 15:40:01,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:40:01,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:40:01,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [327554036] [2020-04-18 15:40:01,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 15:40:01,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:40:01,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:40:01,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:40:01,902 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-04-18 15:40:01,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:01,927 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-04-18 15:40:01,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 15:40:01,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-18 15:40:01,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:40:01,930 INFO L225 Difference]: With dead ends: 217 [2020-04-18 15:40:01,930 INFO L226 Difference]: Without dead ends: 217 [2020-04-18 15:40:01,931 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:40:01,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-04-18 15:40:01,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-04-18 15:40:01,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-04-18 15:40:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-04-18 15:40:01,949 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-04-18 15:40:01,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:40:01,950 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-04-18 15:40:01,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 15:40:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-04-18 15:40:01,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:40:01,951 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:40:01,952 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:40:01,952 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:40:01,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:01,952 INFO L82 PathProgramCache]: Analyzing trace with hash -954674037, now seen corresponding path program 1 times [2020-04-18 15:40:01,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:40:01,953 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [319155259] [2020-04-18 15:40:01,953 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:01,958 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 42 transitions. [2020-04-18 15:40:01,959 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-04-18 15:40:01,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:40:01,960 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:40:01,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:01,960 INFO L82 PathProgramCache]: Analyzing trace with hash -900646617, now seen corresponding path program 2 times [2020-04-18 15:40:01,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:01,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566398308] [2020-04-18 15:40:01,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:02,058 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 15:40:02,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566398308] [2020-04-18 15:40:02,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:02,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:40:02,059 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:02,060 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:02,062 INFO L259 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-04-18 15:40:02,062 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:02,069 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:40:02,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:40:02,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:40:02,070 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2020-04-18 15:40:02,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:02,074 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions. [2020-04-18 15:40:02,074 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-04-18 15:40:02,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:40:02,075 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:40:02,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:02,075 INFO L82 PathProgramCache]: Analyzing trace with hash -954674037, now seen corresponding path program 3 times [2020-04-18 15:40:02,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:02,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459428411] [2020-04-18 15:40:02,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:02,155 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 15:40:02,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459428411] [2020-04-18 15:40:02,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:02,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:40:02,157 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:02,158 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:02,159 INFO L259 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-04-18 15:40:02,160 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:02,204 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:40:02,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:40:02,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:40:02,205 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand 5 states. [2020-04-18 15:40:02,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:02,214 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions. [2020-04-18 15:40:02,215 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-04-18 15:40:02,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:40:02,215 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [319155259] [2020-04-18 15:40:02,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:40:02,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:40:02,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [319155259] [2020-04-18 15:40:02,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 15:40:02,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:40:02,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:40:02,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:40:02,217 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 5 states. [2020-04-18 15:40:02,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:02,250 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-04-18 15:40:02,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 15:40:02,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-04-18 15:40:02,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:40:02,251 INFO L225 Difference]: With dead ends: 136 [2020-04-18 15:40:02,251 INFO L226 Difference]: Without dead ends: 136 [2020-04-18 15:40:02,252 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:40:02,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-04-18 15:40:02,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-04-18 15:40:02,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-04-18 15:40:02,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-04-18 15:40:02,260 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-04-18 15:40:02,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:40:02,260 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-04-18 15:40:02,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 15:40:02,261 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-04-18 15:40:02,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:40:02,262 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:40:02,262 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:40:02,262 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:40:02,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:02,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1044268816, now seen corresponding path program 1 times [2020-04-18 15:40:02,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:40:02,263 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1993218862] [2020-04-18 15:40:02,264 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:02,266 INFO L259 McrAutomatonBuilder]: Finished intersection with 76 states and 162 transitions. [2020-04-18 15:40:02,267 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-04-18 15:40:02,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:40:02,268 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:40:02,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:02,268 INFO L82 PathProgramCache]: Analyzing trace with hash -614947198, now seen corresponding path program 2 times [2020-04-18 15:40:02,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:02,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690071859] [2020-04-18 15:40:02,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:02,301 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 15:40:02,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690071859] [2020-04-18 15:40:02,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:02,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:40:02,302 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:02,303 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:02,307 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 48 transitions. [2020-04-18 15:40:02,307 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:02,313 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:40:02,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:40:02,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:40:02,314 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 3 states. [2020-04-18 15:40:02,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:02,323 INFO L93 Difference]: Finished difference Result 97 states and 194 transitions. [2020-04-18 15:40:02,323 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 194 transitions. [2020-04-18 15:40:02,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:40:02,324 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:40:02,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:02,324 INFO L82 PathProgramCache]: Analyzing trace with hash -995690266, now seen corresponding path program 3 times [2020-04-18 15:40:02,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:02,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122245870] [2020-04-18 15:40:02,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:02,374 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 15:40:02,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122245870] [2020-04-18 15:40:02,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:02,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:40:02,376 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:02,377 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:02,380 INFO L259 McrAutomatonBuilder]: Finished intersection with 25 states and 31 transitions. [2020-04-18 15:40:02,380 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:02,384 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:40:02,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:40:02,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:40:02,385 INFO L87 Difference]: Start difference. First operand 97 states and 194 transitions. Second operand 4 states. [2020-04-18 15:40:02,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:02,400 INFO L93 Difference]: Finished difference Result 100 states and 196 transitions. [2020-04-18 15:40:02,401 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 196 transitions. [2020-04-18 15:40:02,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:40:02,401 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:40:02,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:02,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1044268816, now seen corresponding path program 4 times [2020-04-18 15:40:02,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:02,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140084954] [2020-04-18 15:40:02,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:02,457 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 15:40:02,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140084954] [2020-04-18 15:40:02,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:02,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:40:02,459 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:02,460 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:02,463 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 25 transitions. [2020-04-18 15:40:02,463 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:02,470 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:40:02,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:40:02,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:40:02,471 INFO L87 Difference]: Start difference. First operand 100 states and 196 transitions. Second operand 5 states. [2020-04-18 15:40:02,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:02,485 INFO L93 Difference]: Finished difference Result 100 states and 196 transitions. [2020-04-18 15:40:02,485 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 196 transitions. [2020-04-18 15:40:02,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:40:02,486 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1993218862] [2020-04-18 15:40:02,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:40:02,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 15:40:02,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1993218862] [2020-04-18 15:40:02,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 15:40:02,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:40:02,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:40:02,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:40:02,487 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-04-18 15:40:02,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:02,523 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-04-18 15:40:02,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:40:02,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-04-18 15:40:02,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:40:02,525 INFO L225 Difference]: With dead ends: 109 [2020-04-18 15:40:02,525 INFO L226 Difference]: Without dead ends: 109 [2020-04-18 15:40:02,526 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:40:02,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-04-18 15:40:02,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-04-18 15:40:02,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-04-18 15:40:02,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-04-18 15:40:02,537 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-04-18 15:40:02,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:40:02,537 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-04-18 15:40:02,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 15:40:02,538 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-04-18 15:40:02,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:40:02,540 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:40:02,541 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:40:02,541 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:40:02,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:02,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1052552835, now seen corresponding path program 1 times [2020-04-18 15:40:02,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:40:02,543 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1844718420] [2020-04-18 15:40:02,544 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:02,553 INFO L259 McrAutomatonBuilder]: Finished intersection with 298 states and 864 transitions. [2020-04-18 15:40:02,558 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-18 15:40:02,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:40:02,560 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:40:02,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:02,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1873682287, now seen corresponding path program 2 times [2020-04-18 15:40:02,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:02,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775023703] [2020-04-18 15:40:02,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:02,618 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 15:40:02,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775023703] [2020-04-18 15:40:02,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:02,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:40:02,619 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:02,621 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:02,636 INFO L259 McrAutomatonBuilder]: Finished intersection with 80 states and 145 transitions. [2020-04-18 15:40:02,636 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:02,642 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:40:02,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:40:02,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:40:02,643 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-18 15:40:02,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:02,662 INFO L93 Difference]: Finished difference Result 409 states and 1127 transitions. [2020-04-18 15:40:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 1127 transitions. [2020-04-18 15:40:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:40:02,664 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:40:02,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:02,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1581792339, now seen corresponding path program 3 times [2020-04-18 15:40:02,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:02,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024916771] [2020-04-18 15:40:02,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:02,711 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 15:40:02,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024916771] [2020-04-18 15:40:02,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:02,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:40:02,713 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:02,717 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:02,728 INFO L259 McrAutomatonBuilder]: Finished intersection with 60 states and 95 transitions. [2020-04-18 15:40:02,728 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:02,733 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:40:02,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:40:02,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:40:02,733 INFO L87 Difference]: Start difference. First operand 409 states and 1127 transitions. Second operand 4 states. [2020-04-18 15:40:02,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:02,764 INFO L93 Difference]: Finished difference Result 439 states and 1174 transitions. [2020-04-18 15:40:02,764 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 1174 transitions. [2020-04-18 15:40:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:40:02,766 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:40:02,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:02,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1381396637, now seen corresponding path program 4 times [2020-04-18 15:40:02,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:02,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84435136] [2020-04-18 15:40:02,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:02,858 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 15:40:02,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84435136] [2020-04-18 15:40:02,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:02,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:40:02,859 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:02,861 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:02,867 INFO L259 McrAutomatonBuilder]: Finished intersection with 53 states and 81 transitions. [2020-04-18 15:40:02,867 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:02,873 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:40:02,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:40:02,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:40:02,874 INFO L87 Difference]: Start difference. First operand 439 states and 1174 transitions. Second operand 5 states. [2020-04-18 15:40:02,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:02,910 INFO L93 Difference]: Finished difference Result 442 states and 1176 transitions. [2020-04-18 15:40:02,910 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1176 transitions. [2020-04-18 15:40:02,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:40:02,912 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 15:40:02,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:02,913 INFO L82 PathProgramCache]: Analyzing trace with hash -2050108487, now seen corresponding path program 5 times [2020-04-18 15:40:02,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:02,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761301212] [2020-04-18 15:40:02,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:03,011 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 15:40:03,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761301212] [2020-04-18 15:40:03,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:03,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:40:03,013 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:03,015 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:03,020 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 73 transitions. [2020-04-18 15:40:03,020 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:03,043 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 15:40:03,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:40:03,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:40:03,044 INFO L87 Difference]: Start difference. First operand 442 states and 1176 transitions. Second operand 5 states. [2020-04-18 15:40:03,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:03,094 INFO L93 Difference]: Finished difference Result 968 states and 2447 transitions. [2020-04-18 15:40:03,094 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 2447 transitions. [2020-04-18 15:40:03,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:40:03,097 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 15:40:03,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:03,098 INFO L82 PathProgramCache]: Analyzing trace with hash -457536705, now seen corresponding path program 6 times [2020-04-18 15:40:03,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:03,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033145650] [2020-04-18 15:40:03,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:03,136 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 15:40:03,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033145650] [2020-04-18 15:40:03,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:03,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:40:03,137 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:03,139 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:03,144 INFO L259 McrAutomatonBuilder]: Finished intersection with 56 states and 99 transitions. [2020-04-18 15:40:03,144 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:03,157 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:40:03,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:40:03,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-04-18 15:40:03,161 INFO L87 Difference]: Start difference. First operand 968 states and 2447 transitions. Second operand 4 states. [2020-04-18 15:40:03,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:03,192 INFO L93 Difference]: Finished difference Result 1718 states and 4151 transitions. [2020-04-18 15:40:03,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 4151 transitions. [2020-04-18 15:40:03,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:40:03,200 INFO L105 Mcr]: ---- MCR iteration 5 ---- [2020-04-18 15:40:03,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:40:03,201 INFO L82 PathProgramCache]: Analyzing trace with hash 784811111, now seen corresponding path program 7 times [2020-04-18 15:40:03,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:40:03,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371064309] [2020-04-18 15:40:03,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:40:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:40:03,258 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 15:40:03,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371064309] [2020-04-18 15:40:03,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:40:03,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:40:03,260 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:40:03,261 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:40:03,269 INFO L259 McrAutomatonBuilder]: Finished intersection with 68 states and 120 transitions. [2020-04-18 15:40:03,269 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:40:03,284 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:40:03,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:40:03,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-04-18 15:40:03,285 INFO L87 Difference]: Start difference. First operand 1718 states and 4151 transitions. Second operand 4 states. [2020-04-18 15:40:03,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:03,319 INFO L93 Difference]: Finished difference Result 2288 states and 5410 transitions. [2020-04-18 15:40:03,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2288 states and 5410 transitions. [2020-04-18 15:40:03,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:40:03,325 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1844718420] [2020-04-18 15:40:03,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:40:03,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:40:03,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1844718420] [2020-04-18 15:40:03,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-18 15:40:03,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:40:03,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 15:40:03,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-04-18 15:40:03,327 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 10 states. [2020-04-18 15:40:03,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:40:03,824 INFO L93 Difference]: Finished difference Result 218 states and 450 transitions. [2020-04-18 15:40:03,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-04-18 15:40:03,825 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-04-18 15:40:03,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:40:03,825 INFO L225 Difference]: With dead ends: 218 [2020-04-18 15:40:03,825 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:40:03,826 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=1087, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 15:40:03,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:40:03,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:40:03,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:40:03,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:40:03,826 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-04-18 15:40:03,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:40:03,827 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:40:03,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-18 15:40:03,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:40:03,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:40:03,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:40:03 BasicIcfg [2020-04-18 15:40:03,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:40:03,833 INFO L168 Benchmark]: Toolchain (without parser) took 5335.58 ms. Allocated memory was 142.6 MB in the beginning and 288.4 MB in the end (delta: 145.8 MB). Free memory was 101.2 MB in the beginning and 235.2 MB in the end (delta: -134.0 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-04-18 15:40:03,834 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 142.6 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 15:40:03,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.77 ms. Allocated memory was 142.6 MB in the beginning and 201.9 MB in the end (delta: 59.2 MB). Free memory was 99.2 MB in the beginning and 158.9 MB in the end (delta: -59.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-04-18 15:40:03,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.87 ms. Allocated memory is still 201.9 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 15:40:03,836 INFO L168 Benchmark]: Boogie Preprocessor took 29.22 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 15:40:03,837 INFO L168 Benchmark]: RCFGBuilder took 453.81 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 133.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-04-18 15:40:03,838 INFO L168 Benchmark]: TraceAbstraction took 3998.02 ms. Allocated memory was 201.9 MB in the beginning and 288.4 MB in the end (delta: 86.5 MB). Free memory was 132.5 MB in the beginning and 235.2 MB in the end (delta: -102.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 15:40:03,842 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 142.6 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 768.77 ms. Allocated memory was 142.6 MB in the beginning and 201.9 MB in the end (delta: 59.2 MB). Free memory was 99.2 MB in the beginning and 158.9 MB in the end (delta: -59.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.87 ms. Allocated memory is still 201.9 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.22 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 453.81 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 133.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3998.02 ms. Allocated memory was 201.9 MB in the beginning and 288.4 MB in the end (delta: 86.5 MB). Free memory was 132.5 MB in the beginning and 235.2 MB in the end (delta: -102.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 77 ProgramPointsBefore, 32 ProgramPointsAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 620 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2365 CheckedPairsTotal, 53 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 90 SDtfs, 166 SDslu, 156 SDs, 0 SdLazy, 204 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 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...