/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/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:36:33,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:36:33,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:36:33,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:36:33,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:36:33,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:36:33,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:36:33,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:36:33,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:36:33,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:36:33,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:36:33,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:36:33,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:36:33,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:36:33,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:36:33,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:36:33,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:36:33,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:36:33,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:36:33,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:36:33,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:36:33,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:36:33,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:36:33,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:36:33,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:36:33,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:36:33,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:36:33,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:36:33,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:36:33,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:36:33,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:36:33,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:36:33,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:36:33,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:36:33,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:36:33,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:36:33,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:36:33,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:36:33,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:36:33,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:36:33,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:36:33,363 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 15:36:33,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:36:33,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:36:33,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:36:33,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:36:33,379 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:36:33,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:36:33,379 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:36:33,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:36:33,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:36:33,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:36:33,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:36:33,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:36:33,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:36:33,381 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:36:33,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:36:33,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:36:33,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:36:33,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:36:33,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:36:33,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:36:33,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:36:33,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:36:33,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:36:33,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:36:33,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:36:33,383 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:36:33,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:36:33,383 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:36:33,384 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:36:33,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:36:33,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:36:33,683 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:36:33,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:36:33,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:36:33,701 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:36:33,702 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:36:33,704 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-04-18 15:36:33,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2bb0378c/dcec8aae23b8479487ff13322c9a83b3/FLAG81d4fd3e8 [2020-04-18 15:36:34,300 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:36:34,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-04-18 15:36:34,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2bb0378c/dcec8aae23b8479487ff13322c9a83b3/FLAG81d4fd3e8 [2020-04-18 15:36:34,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2bb0378c/dcec8aae23b8479487ff13322c9a83b3 [2020-04-18 15:36:34,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:36:34,633 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:36:34,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:36:34,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:36:34,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:36:34,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:36:34" (1/1) ... [2020-04-18 15:36:34,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311b5600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:34, skipping insertion in model container [2020-04-18 15:36:34,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:36:34" (1/1) ... [2020-04-18 15:36:34,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:36:34,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:36:35,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:36:35,203 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:36:35,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:36:35,348 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:36:35,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35 WrapperNode [2020-04-18 15:36:35,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:36:35,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:36:35,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:36:35,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:36:35,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35" (1/1) ... [2020-04-18 15:36:35,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35" (1/1) ... [2020-04-18 15:36:35,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:36:35,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:36:35,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:36:35,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:36:35,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35" (1/1) ... [2020-04-18 15:36:35,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35" (1/1) ... [2020-04-18 15:36:35,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35" (1/1) ... [2020-04-18 15:36:35,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35" (1/1) ... [2020-04-18 15:36:35,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35" (1/1) ... [2020-04-18 15:36:35,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35" (1/1) ... [2020-04-18 15:36:35,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35" (1/1) ... [2020-04-18 15:36:35,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:36:35,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:36:35,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:36:35,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:36:35,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35" (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 15:36:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:36:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:36:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:36:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:36:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 15:36:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 15:36:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 15:36:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 15:36:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 15:36:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 15:36:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:36:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:36:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:36:35,502 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 15:36:35,867 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:36:35,868 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 15:36:35,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:36:35 BoogieIcfgContainer [2020-04-18 15:36:35,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:36:35,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:36:35,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:36:35,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:36:35,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:36:34" (1/3) ... [2020-04-18 15:36:35,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424ceb4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:36:35, skipping insertion in model container [2020-04-18 15:36:35,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:36:35" (2/3) ... [2020-04-18 15:36:35,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424ceb4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:36:35, skipping insertion in model container [2020-04-18 15:36:35,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:36:35" (3/3) ... [2020-04-18 15:36:35,881 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2020-04-18 15:36:35,892 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:36:35,892 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:36:35,899 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:36:35,901 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:36:35,926 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,927 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,927 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,927 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,928 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,928 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,929 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,929 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,929 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,930 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,930 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,930 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,931 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,931 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,931 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,931 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,932 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,932 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,936 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,936 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,937 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,937 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,943 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,943 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,943 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,944 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,946 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,946 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,946 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,947 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:36:35,961 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 15:36:35,979 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:36:35,979 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:36:35,979 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:36:35,979 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:36:35,979 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:36:35,980 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:36:35,980 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:36:35,980 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:36:35,995 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-04-18 15:36:35,998 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-04-18 15:36:36,041 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-04-18 15:36:36,041 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:36:36,046 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:36:36,049 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-04-18 15:36:36,068 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-04-18 15:36:36,069 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:36:36,070 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:36:36,072 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 15:36:36,073 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:36:37,298 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2202 [2020-04-18 15:36:37,299 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-04-18 15:36:37,303 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-18 15:36:37,331 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-18 15:36:37,334 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-18 15:36:37,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:36:37,341 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:36:37,341 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:36:37,342 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:36:37,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:37,348 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-04-18 15:36:37,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:36:37,355 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [774988296] [2020-04-18 15:36:37,367 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:37,379 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:36:37,381 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-04-18 15:36:37,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:36:37,382 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:36:37,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:37,383 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 2 times [2020-04-18 15:36:37,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:37,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430715489] [2020-04-18 15:36:37,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:37,556 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 15:36:37,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430715489] [2020-04-18 15:36:37,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:37,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:36:37,559 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:37,573 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:37,576 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:36:37,576 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:37,581 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:36:37,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:36:37,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:36:37,587 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2020-04-18 15:36:37,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:37,591 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-04-18 15:36:37,592 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-04-18 15:36:37,592 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:36:37,593 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [774988296] [2020-04-18 15:36:37,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:36:37,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:36:37,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [774988296] [2020-04-18 15:36:37,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 15:36:37,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:36:37,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:36:37,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:36:37,602 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-18 15:36:37,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:37,635 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-18 15:36:37,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 15:36:37,636 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-18 15:36:37,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:36:37,653 INFO L225 Difference]: With dead ends: 362 [2020-04-18 15:36:37,654 INFO L226 Difference]: Without dead ends: 298 [2020-04-18 15:36:37,655 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 15:36:37,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-18 15:36:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-18 15:36:37,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-18 15:36:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-18 15:36:37,729 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-18 15:36:37,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:36:37,730 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-18 15:36:37,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 15:36:37,730 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-18 15:36:37,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:36:37,731 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:36:37,731 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:36:37,732 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:36:37,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:37,732 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-04-18 15:36:37,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:36:37,733 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1303348602] [2020-04-18 15:36:37,733 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:37,734 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:36:37,734 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 15:36:37,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:36:37,735 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:36:37,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:37,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 2 times [2020-04-18 15:36:37,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:37,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998537864] [2020-04-18 15:36:37,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:37,838 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 15:36:37,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998537864] [2020-04-18 15:36:37,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:37,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:36:37,840 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:37,840 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:37,841 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:36:37,841 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:37,848 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:36:37,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:36:37,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:36:37,850 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-04-18 15:36:37,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:37,850 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-04-18 15:36:37,851 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-04-18 15:36:37,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:36:37,851 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1303348602] [2020-04-18 15:36:37,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:36:37,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:36:37,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1303348602] [2020-04-18 15:36:37,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 15:36:37,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:36:37,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:36:37,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:36:37,854 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-04-18 15:36:37,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:37,879 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-04-18 15:36:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 15:36:37,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-18 15:36:37,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:36:37,882 INFO L225 Difference]: With dead ends: 217 [2020-04-18 15:36:37,882 INFO L226 Difference]: Without dead ends: 217 [2020-04-18 15:36:37,886 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 15:36:37,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-04-18 15:36:37,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-04-18 15:36:37,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-04-18 15:36:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-04-18 15:36:37,916 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-04-18 15:36:37,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:36:37,916 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-04-18 15:36:37,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 15:36:37,916 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-04-18 15:36:37,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:36:37,918 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:36:37,918 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:36:37,918 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:36:37,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:37,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-04-18 15:36:37,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:36:37,919 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1123384186] [2020-04-18 15:36:37,920 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:37,921 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 30 transitions. [2020-04-18 15:36:37,921 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-04-18 15:36:37,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:36:37,922 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:36:37,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:37,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1871490294, now seen corresponding path program 2 times [2020-04-18 15:36:37,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:37,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290322137] [2020-04-18 15:36:37,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:38,013 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 15:36:38,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290322137] [2020-04-18 15:36:38,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:38,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:36:38,015 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:38,016 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:38,017 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-04-18 15:36:38,017 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:38,022 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:36:38,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:36:38,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:36:38,022 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2020-04-18 15:36:38,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:38,026 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2020-04-18 15:36:38,026 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-04-18 15:36:38,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:36:38,027 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:36:38,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:38,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 3 times [2020-04-18 15:36:38,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:38,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283173023] [2020-04-18 15:36:38,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:38,102 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 15:36:38,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283173023] [2020-04-18 15:36:38,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:38,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:36:38,106 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:38,107 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:38,108 INFO L259 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-04-18 15:36:38,109 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:38,116 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:36:38,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:36:38,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:36:38,117 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 4 states. [2020-04-18 15:36:38,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:38,129 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2020-04-18 15:36:38,129 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-04-18 15:36:38,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:36:38,134 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1123384186] [2020-04-18 15:36:38,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:36:38,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:36:38,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1123384186] [2020-04-18 15:36:38,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:36:38,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:36:38,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:36:38,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:36:38,136 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-04-18 15:36:38,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:38,171 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-04-18 15:36:38,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 15:36:38,177 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 15:36:38,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:36:38,179 INFO L225 Difference]: With dead ends: 136 [2020-04-18 15:36:38,179 INFO L226 Difference]: Without dead ends: 136 [2020-04-18 15:36:38,179 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:36:38,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-04-18 15:36:38,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-04-18 15:36:38,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-04-18 15:36:38,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-04-18 15:36:38,195 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-04-18 15:36:38,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:36:38,195 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-04-18 15:36:38,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:36:38,196 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-04-18 15:36:38,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:36:38,201 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:36:38,201 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:36:38,201 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:36:38,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:38,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-04-18 15:36:38,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:36:38,202 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [204500111] [2020-04-18 15:36:38,202 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:38,205 INFO L259 McrAutomatonBuilder]: Finished intersection with 82 states and 174 transitions. [2020-04-18 15:36:38,206 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2020-04-18 15:36:38,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:36:38,207 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:36:38,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:38,208 INFO L82 PathProgramCache]: Analyzing trace with hash 913743744, now seen corresponding path program 2 times [2020-04-18 15:36:38,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:38,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360830468] [2020-04-18 15:36:38,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:38,275 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 15:36:38,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360830468] [2020-04-18 15:36:38,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:38,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:36:38,276 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:38,278 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:38,285 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 57 transitions. [2020-04-18 15:36:38,285 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:38,289 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:36:38,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:36:38,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:36:38,290 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 3 states. [2020-04-18 15:36:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:38,305 INFO L93 Difference]: Finished difference Result 103 states and 206 transitions. [2020-04-18 15:36:38,305 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 206 transitions. [2020-04-18 15:36:38,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:36:38,306 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:36:38,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:38,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1477639104, now seen corresponding path program 3 times [2020-04-18 15:36:38,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:38,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193868695] [2020-04-18 15:36:38,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:38,340 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 15:36:38,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193868695] [2020-04-18 15:36:38,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:38,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:36:38,341 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:38,342 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:38,347 INFO L259 McrAutomatonBuilder]: Finished intersection with 40 states and 59 transitions. [2020-04-18 15:36:38,347 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:38,421 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times. [2020-04-18 15:36:38,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:36:38,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:36:38,422 INFO L87 Difference]: Start difference. First operand 103 states and 206 transitions. Second operand 6 states. [2020-04-18 15:36:38,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:38,450 INFO L93 Difference]: Finished difference Result 106 states and 208 transitions. [2020-04-18 15:36:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 208 transitions. [2020-04-18 15:36:38,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 15:36:38,451 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:36:38,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:38,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 4 times [2020-04-18 15:36:38,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:38,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487372616] [2020-04-18 15:36:38,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:38,495 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 15:36:38,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487372616] [2020-04-18 15:36:38,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:38,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:36:38,496 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:38,497 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:38,501 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 50 transitions. [2020-04-18 15:36:38,501 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:38,545 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 15:36:38,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:36:38,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:36:38,546 INFO L87 Difference]: Start difference. First operand 106 states and 208 transitions. Second operand 7 states. [2020-04-18 15:36:38,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:38,572 INFO L93 Difference]: Finished difference Result 106 states and 208 transitions. [2020-04-18 15:36:38,572 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 208 transitions. [2020-04-18 15:36:38,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:36:38,573 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [204500111] [2020-04-18 15:36:38,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:36:38,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 15:36:38,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [204500111] [2020-04-18 15:36:38,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 15:36:38,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:36:38,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:36:38,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:36:38,575 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 7 states. [2020-04-18 15:36:38,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:38,620 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-04-18 15:36:38,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:36:38,621 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-04-18 15:36:38,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:36:38,622 INFO L225 Difference]: With dead ends: 109 [2020-04-18 15:36:38,622 INFO L226 Difference]: Without dead ends: 109 [2020-04-18 15:36:38,622 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:36:38,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-04-18 15:36:38,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-04-18 15:36:38,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-04-18 15:36:38,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-04-18 15:36:38,628 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-04-18 15:36:38,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:36:38,628 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-04-18 15:36:38,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 15:36:38,629 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-04-18 15:36:38,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:36:38,629 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:36:38,630 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 15:36:38,630 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:36:38,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:38,630 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-04-18 15:36:38,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:36:38,631 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1734822939] [2020-04-18 15:36:38,632 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:38,641 INFO L259 McrAutomatonBuilder]: Finished intersection with 298 states and 864 transitions. [2020-04-18 15:36:38,644 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-18 15:36:38,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:36:38,646 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:36:38,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:38,646 INFO L82 PathProgramCache]: Analyzing trace with hash -162656142, now seen corresponding path program 2 times [2020-04-18 15:36:38,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:38,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536692423] [2020-04-18 15:36:38,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:38,672 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 15:36:38,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536692423] [2020-04-18 15:36:38,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:38,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:36:38,673 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:38,674 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:38,686 INFO L259 McrAutomatonBuilder]: Finished intersection with 88 states and 210 transitions. [2020-04-18 15:36:38,686 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:38,690 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:36:38,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:36:38,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:36:38,691 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-18 15:36:38,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:38,705 INFO L93 Difference]: Finished difference Result 409 states and 1127 transitions. [2020-04-18 15:36:38,705 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 1127 transitions. [2020-04-18 15:36:38,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:36:38,707 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:36:38,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:38,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1226918962, now seen corresponding path program 3 times [2020-04-18 15:36:38,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:38,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523051334] [2020-04-18 15:36:38,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:38,743 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 15:36:38,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523051334] [2020-04-18 15:36:38,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:38,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:36:38,744 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:38,746 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:38,773 INFO L259 McrAutomatonBuilder]: Finished intersection with 103 states and 185 transitions. [2020-04-18 15:36:38,773 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:38,819 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times. [2020-04-18 15:36:38,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:36:38,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:36:38,820 INFO L87 Difference]: Start difference. First operand 409 states and 1127 transitions. Second operand 6 states. [2020-04-18 15:36:38,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:38,873 INFO L93 Difference]: Finished difference Result 439 states and 1174 transitions. [2020-04-18 15:36:38,873 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 1174 transitions. [2020-04-18 15:36:38,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:36:38,875 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:36:38,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:38,876 INFO L82 PathProgramCache]: Analyzing trace with hash 687587698, now seen corresponding path program 4 times [2020-04-18 15:36:38,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:38,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224569926] [2020-04-18 15:36:38,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:38,929 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 15:36:38,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224569926] [2020-04-18 15:36:38,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:38,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:36:38,931 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:38,934 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:38,948 INFO L259 McrAutomatonBuilder]: Finished intersection with 85 states and 149 transitions. [2020-04-18 15:36:38,949 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:39,009 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 15:36:39,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:36:39,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:36:39,010 INFO L87 Difference]: Start difference. First operand 439 states and 1174 transitions. Second operand 7 states. [2020-04-18 15:36:39,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:39,073 INFO L93 Difference]: Finished difference Result 442 states and 1176 transitions. [2020-04-18 15:36:39,073 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1176 transitions. [2020-04-18 15:36:39,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:36:39,075 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 15:36:39,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:39,076 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 5 times [2020-04-18 15:36:39,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:39,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743159005] [2020-04-18 15:36:39,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:39,124 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 15:36:39,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743159005] [2020-04-18 15:36:39,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:39,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:36:39,125 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:39,127 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:39,140 INFO L259 McrAutomatonBuilder]: Finished intersection with 77 states and 141 transitions. [2020-04-18 15:36:39,140 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:39,158 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:36:39,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:36:39,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:36:39,158 INFO L87 Difference]: Start difference. First operand 442 states and 1176 transitions. Second operand 4 states. [2020-04-18 15:36:39,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:39,186 INFO L93 Difference]: Finished difference Result 754 states and 1914 transitions. [2020-04-18 15:36:39,186 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1914 transitions. [2020-04-18 15:36:39,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:36:39,189 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 15:36:39,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:39,189 INFO L82 PathProgramCache]: Analyzing trace with hash 909729134, now seen corresponding path program 6 times [2020-04-18 15:36:39,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:39,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872118996] [2020-04-18 15:36:39,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:39,259 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 15:36:39,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872118996] [2020-04-18 15:36:39,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:39,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:36:39,261 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:39,263 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:39,270 INFO L259 McrAutomatonBuilder]: Finished intersection with 77 states and 135 transitions. [2020-04-18 15:36:39,271 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:39,283 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:36:39,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:36:39,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-04-18 15:36:39,284 INFO L87 Difference]: Start difference. First operand 754 states and 1914 transitions. Second operand 4 states. [2020-04-18 15:36:39,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:39,319 INFO L93 Difference]: Finished difference Result 1362 states and 3282 transitions. [2020-04-18 15:36:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 3282 transitions. [2020-04-18 15:36:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 15:36:39,327 INFO L105 Mcr]: ---- MCR iteration 5 ---- [2020-04-18 15:36:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:36:39,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 7 times [2020-04-18 15:36:39,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:36:39,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856558301] [2020-04-18 15:36:39,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:36:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:36:39,387 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 15:36:39,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856558301] [2020-04-18 15:36:39,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:36:39,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:36:39,388 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:36:39,389 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:36:39,397 INFO L259 McrAutomatonBuilder]: Finished intersection with 77 states and 138 transitions. [2020-04-18 15:36:39,397 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:36:39,412 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:36:39,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:36:39,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-04-18 15:36:39,415 INFO L87 Difference]: Start difference. First operand 1362 states and 3282 transitions. Second operand 4 states. [2020-04-18 15:36:39,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:39,452 INFO L93 Difference]: Finished difference Result 2462 states and 5638 transitions. [2020-04-18 15:36:39,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2462 states and 5638 transitions. [2020-04-18 15:36:39,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:36:39,460 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1734822939] [2020-04-18 15:36:39,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:36:39,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:36:39,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1734822939] [2020-04-18 15:36:39,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 15:36:39,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:36:39,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 15:36:39,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-04-18 15:36:39,466 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 11 states. [2020-04-18 15:36:40,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:36:40,029 INFO L93 Difference]: Finished difference Result 240 states and 478 transitions. [2020-04-18 15:36:40,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-04-18 15:36:40,029 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-04-18 15:36:40,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:36:40,030 INFO L225 Difference]: With dead ends: 240 [2020-04-18 15:36:40,030 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:36:40,031 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 117 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=361, Invalid=1445, Unknown=0, NotChecked=0, Total=1806 [2020-04-18 15:36:40,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:36:40,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:36:40,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:36:40,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:36:40,031 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-04-18 15:36:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:36:40,031 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:36:40,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 15:36:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:36:40,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:36:40,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:36:40 BasicIcfg [2020-04-18 15:36:40,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:36:40,037 INFO L168 Benchmark]: Toolchain (without parser) took 5418.93 ms. Allocated memory was 145.8 MB in the beginning and 286.8 MB in the end (delta: 141.0 MB). Free memory was 100.6 MB in the beginning and 193.5 MB in the end (delta: -92.9 MB). Peak memory consumption was 48.1 MB. Max. memory is 7.1 GB. [2020-04-18 15:36:40,037 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-18 15:36:40,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.93 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 98.6 MB in the beginning and 159.9 MB in the end (delta: -61.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-04-18 15:36:40,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.75 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 157.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-04-18 15:36:40,039 INFO L168 Benchmark]: Boogie Preprocessor took 24.43 ms. Allocated memory is still 202.9 MB. Free memory was 157.3 MB in the beginning and 156.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:36:40,040 INFO L168 Benchmark]: RCFGBuilder took 438.05 ms. Allocated memory is still 202.9 MB. Free memory was 156.0 MB in the beginning and 134.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-04-18 15:36:40,040 INFO L168 Benchmark]: TraceAbstraction took 4161.49 ms. Allocated memory was 202.9 MB in the beginning and 286.8 MB in the end (delta: 83.9 MB). Free memory was 133.8 MB in the beginning and 193.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-04-18 15:36:40,044 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.93 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 98.6 MB in the beginning and 159.9 MB in the end (delta: -61.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.75 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 157.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.43 ms. Allocated memory is still 202.9 MB. Free memory was 157.3 MB in the beginning and 156.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.05 ms. Allocated memory is still 202.9 MB. Free memory was 156.0 MB in the beginning and 134.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4161.49 ms. Allocated memory was 202.9 MB in the beginning and 286.8 MB in the end (delta: 83.9 MB). Free memory was 133.8 MB in the beginning and 193.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 76 ProgramPointsBefore, 32 ProgramPointsAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2202 CheckedPairsTotal, 55 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 104 SDtfs, 200 SDslu, 238 SDs, 0 SdLazy, 188 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 197 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.5s 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...