/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-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:57:26,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:57:26,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:57:26,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:57:26,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:57:26,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:57:26,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:57:26,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:57:26,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:57:26,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:57:26,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:57:26,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:57:26,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:57:26,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:57:26,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:57:26,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:57:26,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:57:26,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:57:26,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:57:26,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:57:26,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:57:26,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:57:26,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:57:26,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:57:26,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:57:26,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:57:26,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:57:26,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:57:26,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:57:26,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:57:26,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:57:26,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:57:26,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:57:26,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:57:26,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:57:26,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:57:26,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:57:26,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:57:26,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:57:26,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:57:26,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:57:26,373 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-NoLbe-McrStrategy.epf [2020-04-18 19:57:26,396 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:57:26,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:57:26,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:57:26,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:57:26,400 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:57:26,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:57:26,401 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:57:26,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:57:26,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:57:26,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:57:26,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:57:26,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:57:26,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:57:26,403 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:57:26,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:57:26,403 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:57:26,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:57:26,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:57:26,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:57:26,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:57:26,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:57:26,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:57:26,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:57:26,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:57:26,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:57:26,407 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:57:26,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:57:26,407 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:57:26,407 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:57:26,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:57:26,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:57:26,716 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:57:26,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:57:26,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:57:26,743 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:57:26,743 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:57:26,745 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-04-18 19:57:26,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28031039d/caecf0c897b7430dae2871911dd30cef/FLAG683488668 [2020-04-18 19:57:27,356 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:57:27,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-04-18 19:57:27,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28031039d/caecf0c897b7430dae2871911dd30cef/FLAG683488668 [2020-04-18 19:57:27,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28031039d/caecf0c897b7430dae2871911dd30cef [2020-04-18 19:57:27,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:57:27,658 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:57:27,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:57:27,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:57:27,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:57:27,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:57:27" (1/1) ... [2020-04-18 19:57:27,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529f51af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:27, skipping insertion in model container [2020-04-18 19:57:27,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:57:27" (1/1) ... [2020-04-18 19:57:27,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:57:27,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:57:28,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:57:28,192 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:57:28,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:57:28,321 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:57:28,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28 WrapperNode [2020-04-18 19:57:28,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:57:28,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:57:28,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:57:28,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:57:28,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28" (1/1) ... [2020-04-18 19:57:28,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28" (1/1) ... [2020-04-18 19:57:28,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:57:28,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:57:28,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:57:28,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:57:28,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28" (1/1) ... [2020-04-18 19:57:28,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28" (1/1) ... [2020-04-18 19:57:28,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28" (1/1) ... [2020-04-18 19:57:28,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28" (1/1) ... [2020-04-18 19:57:28,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28" (1/1) ... [2020-04-18 19:57:28,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28" (1/1) ... [2020-04-18 19:57:28,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28" (1/1) ... [2020-04-18 19:57:28,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:57:28,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:57:28,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:57:28,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:57:28,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28" (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 19:57:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:57:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:57:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:57:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:57:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:57:28,462 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:57:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:57:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:57:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 19:57:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 19:57:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:57:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:57:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:57:28,465 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 19:57:28,823 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:57:28,824 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:57:28,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:57:28 BoogieIcfgContainer [2020-04-18 19:57:28,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:57:28,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:57:28,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:57:28,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:57:28,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:57:27" (1/3) ... [2020-04-18 19:57:28,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d985147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:57:28, skipping insertion in model container [2020-04-18 19:57:28,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:57:28" (2/3) ... [2020-04-18 19:57:28,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d985147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:57:28, skipping insertion in model container [2020-04-18 19:57:28,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:57:28" (3/3) ... [2020-04-18 19:57:28,837 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2020-04-18 19:57:28,847 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:57:28,848 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:57:28,856 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:57:28,857 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:57:28,882 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,882 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,883 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,883 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,883 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,884 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,884 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,884 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,885 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,885 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,885 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,885 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,886 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,886 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,886 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,886 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,887 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,887 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,891 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,891 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,891 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,892 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,902 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,903 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,903 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,903 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,913 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,913 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,913 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,913 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:57:28,929 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 19:57:28,947 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:57:28,947 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:57:28,947 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:57:28,947 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:57:28,947 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:57:28,948 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:57:28,948 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:57:28,948 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:57:28,960 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 68 transitions, 151 flow [2020-04-18 19:57:29,478 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8470 states. [2020-04-18 19:57:29,481 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states. [2020-04-18 19:57:29,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-04-18 19:57:29,515 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:57:29,517 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:57:29,517 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:57:29,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:29,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1107897661, now seen corresponding path program 1 times [2020-04-18 19:57:29,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:57:29,533 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2140406991] [2020-04-18 19:57:29,546 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:29,560 INFO L259 McrAutomatonBuilder]: Finished intersection with 35 states and 34 transitions. [2020-04-18 19:57:29,562 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-04-18 19:57:29,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-04-18 19:57:29,563 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:57:29,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:29,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1107897661, now seen corresponding path program 2 times [2020-04-18 19:57:29,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:29,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213500475] [2020-04-18 19:57:29,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:29,986 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 19:57:29,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213500475] [2020-04-18 19:57:29,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:29,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:57:29,990 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:29,993 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:30,000 INFO L259 McrAutomatonBuilder]: Finished intersection with 35 states and 34 transitions. [2020-04-18 19:57:30,001 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:30,070 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:57:30,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:30,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:57:30,076 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 6 states. [2020-04-18 19:57:30,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:30,205 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-04-18 19:57:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2020-04-18 19:57:30,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:57:30,207 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2140406991] [2020-04-18 19:57:30,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:57:30,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:57:30,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2140406991] [2020-04-18 19:57:30,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:57:30,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:57:30,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:30,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:57:30,215 INFO L87 Difference]: Start difference. First operand 8470 states. Second operand 6 states. [2020-04-18 19:57:30,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:30,680 INFO L93 Difference]: Finished difference Result 17280 states and 60764 transitions. [2020-04-18 19:57:30,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:57:30,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-04-18 19:57:30,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:57:30,743 INFO L225 Difference]: With dead ends: 17280 [2020-04-18 19:57:30,743 INFO L226 Difference]: Without dead ends: 5217 [2020-04-18 19:57:30,745 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:57:30,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5217 states. [2020-04-18 19:57:31,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5217 to 4569. [2020-04-18 19:57:31,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4569 states. [2020-04-18 19:57:31,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4569 states to 4569 states and 15163 transitions. [2020-04-18 19:57:31,053 INFO L78 Accepts]: Start accepts. Automaton has 4569 states and 15163 transitions. Word has length 34 [2020-04-18 19:57:31,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:57:31,056 INFO L479 AbstractCegarLoop]: Abstraction has 4569 states and 15163 transitions. [2020-04-18 19:57:31,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:57:31,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4569 states and 15163 transitions. [2020-04-18 19:57:31,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:57:31,076 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:57:31,085 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:57:31,085 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:57:31,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:31,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1527649090, now seen corresponding path program 1 times [2020-04-18 19:57:31,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:57:31,087 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1442558723] [2020-04-18 19:57:31,088 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:31,092 INFO L259 McrAutomatonBuilder]: Finished intersection with 69 states and 100 transitions. [2020-04-18 19:57:31,095 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2020-04-18 19:57:31,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:57:31,099 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:57:31,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:31,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1527649090, now seen corresponding path program 2 times [2020-04-18 19:57:31,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:31,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519424592] [2020-04-18 19:57:31,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:31,396 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-04-18 19:57:31,413 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 19:57:31,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519424592] [2020-04-18 19:57:31,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:31,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:57:31,415 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:31,420 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:31,428 INFO L259 McrAutomatonBuilder]: Finished intersection with 57 states and 76 transitions. [2020-04-18 19:57:31,428 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:31,473 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:57:31,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:31,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:57:31,474 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 6 states. [2020-04-18 19:57:31,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:31,541 INFO L93 Difference]: Finished difference Result 69 states and 100 transitions. [2020-04-18 19:57:31,542 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 100 transitions. [2020-04-18 19:57:31,542 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:57:31,542 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1442558723] [2020-04-18 19:57:31,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:57:31,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:57:31,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1442558723] [2020-04-18 19:57:31,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:57:31,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:57:31,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:31,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:57:31,546 INFO L87 Difference]: Start difference. First operand 4569 states and 15163 transitions. Second operand 6 states. [2020-04-18 19:57:31,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:31,696 INFO L93 Difference]: Finished difference Result 5529 states and 18226 transitions. [2020-04-18 19:57:31,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:57:31,697 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-04-18 19:57:31,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:57:31,730 INFO L225 Difference]: With dead ends: 5529 [2020-04-18 19:57:31,730 INFO L226 Difference]: Without dead ends: 4269 [2020-04-18 19:57:31,733 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:57:31,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4269 states. [2020-04-18 19:57:31,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4269 to 4213. [2020-04-18 19:57:31,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4213 states. [2020-04-18 19:57:31,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4213 states to 4213 states and 13853 transitions. [2020-04-18 19:57:31,879 INFO L78 Accepts]: Start accepts. Automaton has 4213 states and 13853 transitions. Word has length 36 [2020-04-18 19:57:31,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:57:31,879 INFO L479 AbstractCegarLoop]: Abstraction has 4213 states and 13853 transitions. [2020-04-18 19:57:31,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:57:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 4213 states and 13853 transitions. [2020-04-18 19:57:31,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:57:31,890 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:57:31,890 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:57:31,890 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:57:31,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:31,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1402462000, now seen corresponding path program 1 times [2020-04-18 19:57:31,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:57:31,892 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [704221404] [2020-04-18 19:57:31,893 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:31,896 INFO L259 McrAutomatonBuilder]: Finished intersection with 77 states and 116 transitions. [2020-04-18 19:57:31,897 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-04-18 19:57:31,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:57:31,898 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:57:31,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:31,898 INFO L82 PathProgramCache]: Analyzing trace with hash -457495808, now seen corresponding path program 2 times [2020-04-18 19:57:31,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:31,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166007297] [2020-04-18 19:57:31,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:32,176 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 19:57:32,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166007297] [2020-04-18 19:57:32,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:32,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:57:32,177 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:32,181 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:32,187 INFO L259 McrAutomatonBuilder]: Finished intersection with 62 states and 86 transitions. [2020-04-18 19:57:32,187 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:32,329 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:57:32,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:57:32,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:57:32,330 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 7 states. [2020-04-18 19:57:32,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:32,407 INFO L93 Difference]: Finished difference Result 77 states and 116 transitions. [2020-04-18 19:57:32,408 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 116 transitions. [2020-04-18 19:57:32,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:57:32,408 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [704221404] [2020-04-18 19:57:32,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:57:32,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:57:32,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [704221404] [2020-04-18 19:57:32,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:57:32,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:57:32,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:57:32,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:57:32,414 INFO L87 Difference]: Start difference. First operand 4213 states and 13853 transitions. Second operand 7 states. [2020-04-18 19:57:32,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:32,649 INFO L93 Difference]: Finished difference Result 5765 states and 18970 transitions. [2020-04-18 19:57:32,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:57:32,650 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-04-18 19:57:32,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:57:32,687 INFO L225 Difference]: With dead ends: 5765 [2020-04-18 19:57:32,687 INFO L226 Difference]: Without dead ends: 4545 [2020-04-18 19:57:32,687 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:57:32,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4545 states. [2020-04-18 19:57:32,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4545 to 3977. [2020-04-18 19:57:32,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3977 states. [2020-04-18 19:57:32,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 12983 transitions. [2020-04-18 19:57:32,869 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 12983 transitions. Word has length 36 [2020-04-18 19:57:32,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:57:32,870 INFO L479 AbstractCegarLoop]: Abstraction has 3977 states and 12983 transitions. [2020-04-18 19:57:32,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:57:32,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 12983 transitions. [2020-04-18 19:57:32,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:57:32,882 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:57:32,887 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:57:32,887 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:57:32,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:32,888 INFO L82 PathProgramCache]: Analyzing trace with hash -132185071, now seen corresponding path program 1 times [2020-04-18 19:57:32,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:57:32,890 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [648858585] [2020-04-18 19:57:32,892 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:32,896 INFO L259 McrAutomatonBuilder]: Finished intersection with 179 states and 382 transitions. [2020-04-18 19:57:32,899 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-04-18 19:57:32,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:57:32,903 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:57:32,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:32,904 INFO L82 PathProgramCache]: Analyzing trace with hash 812781121, now seen corresponding path program 2 times [2020-04-18 19:57:32,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:32,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998600899] [2020-04-18 19:57:32,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:33,113 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 19:57:33,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998600899] [2020-04-18 19:57:33,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:33,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:57:33,115 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:33,119 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:33,132 INFO L259 McrAutomatonBuilder]: Finished intersection with 106 states and 192 transitions. [2020-04-18 19:57:33,132 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:33,185 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:57:33,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:57:33,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:57:33,186 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 7 states. [2020-04-18 19:57:33,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:33,246 INFO L93 Difference]: Finished difference Result 179 states and 382 transitions. [2020-04-18 19:57:33,246 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 382 transitions. [2020-04-18 19:57:33,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:57:33,247 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [648858585] [2020-04-18 19:57:33,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:57:33,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:57:33,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [648858585] [2020-04-18 19:57:33,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:57:33,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:57:33,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:57:33,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:57:33,251 INFO L87 Difference]: Start difference. First operand 3977 states and 12983 transitions. Second operand 7 states. [2020-04-18 19:57:33,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:33,487 INFO L93 Difference]: Finished difference Result 5185 states and 16952 transitions. [2020-04-18 19:57:33,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:57:33,488 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-04-18 19:57:33,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:57:33,529 INFO L225 Difference]: With dead ends: 5185 [2020-04-18 19:57:33,529 INFO L226 Difference]: Without dead ends: 4389 [2020-04-18 19:57:33,530 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:57:33,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4389 states. [2020-04-18 19:57:33,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4389 to 3845. [2020-04-18 19:57:33,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3845 states. [2020-04-18 19:57:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 12509 transitions. [2020-04-18 19:57:33,806 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 12509 transitions. Word has length 38 [2020-04-18 19:57:33,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:57:33,811 INFO L479 AbstractCegarLoop]: Abstraction has 3845 states and 12509 transitions. [2020-04-18 19:57:33,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:57:33,811 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 12509 transitions. [2020-04-18 19:57:33,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:57:33,821 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:57:33,821 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:57:33,821 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:57:33,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:33,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1725091133, now seen corresponding path program 1 times [2020-04-18 19:57:33,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:57:33,824 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1316016365] [2020-04-18 19:57:33,825 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:33,831 INFO L259 McrAutomatonBuilder]: Finished intersection with 230 states and 515 transitions. [2020-04-18 19:57:33,832 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states. [2020-04-18 19:57:33,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:57:33,833 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:57:33,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:33,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1624909971, now seen corresponding path program 2 times [2020-04-18 19:57:33,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:33,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967195390] [2020-04-18 19:57:33,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:33,985 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 19:57:33,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967195390] [2020-04-18 19:57:33,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:33,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:57:33,986 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:33,989 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:34,005 INFO L259 McrAutomatonBuilder]: Finished intersection with 128 states and 245 transitions. [2020-04-18 19:57:34,005 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:34,043 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:57:34,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:34,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:57:34,044 INFO L87 Difference]: Start difference. First operand 230 states. Second operand 6 states. [2020-04-18 19:57:34,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:34,189 INFO L93 Difference]: Finished difference Result 299 states and 629 transitions. [2020-04-18 19:57:34,189 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 629 transitions. [2020-04-18 19:57:34,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:57:34,190 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:57:34,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:34,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1725091133, now seen corresponding path program 3 times [2020-04-18 19:57:34,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:34,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899189243] [2020-04-18 19:57:34,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:34,292 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 19:57:34,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899189243] [2020-04-18 19:57:34,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:34,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:57:34,293 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:34,296 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:34,318 INFO L259 McrAutomatonBuilder]: Finished intersection with 164 states and 347 transitions. [2020-04-18 19:57:34,318 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:34,490 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 16 times. [2020-04-18 19:57:34,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 19:57:34,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:57:34,491 INFO L87 Difference]: Start difference. First operand 299 states and 629 transitions. Second operand 12 states. [2020-04-18 19:57:34,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:34,792 INFO L93 Difference]: Finished difference Result 305 states and 634 transitions. [2020-04-18 19:57:34,792 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 634 transitions. [2020-04-18 19:57:34,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:57:34,793 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 19:57:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:34,793 INFO L82 PathProgramCache]: Analyzing trace with hash -573520775, now seen corresponding path program 4 times [2020-04-18 19:57:34,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:34,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779689607] [2020-04-18 19:57:34,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:34,917 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 19:57:34,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779689607] [2020-04-18 19:57:34,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:34,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:57:34,918 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:34,922 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:34,940 INFO L259 McrAutomatonBuilder]: Finished intersection with 124 states and 237 transitions. [2020-04-18 19:57:34,940 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:34,961 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:57:34,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:34,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=316, Unknown=0, NotChecked=0, Total=462 [2020-04-18 19:57:34,964 INFO L87 Difference]: Start difference. First operand 305 states and 634 transitions. Second operand 6 states. [2020-04-18 19:57:35,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:35,128 INFO L93 Difference]: Finished difference Result 327 states and 665 transitions. [2020-04-18 19:57:35,128 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 665 transitions. [2020-04-18 19:57:35,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:57:35,129 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1316016365] [2020-04-18 19:57:35,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:57:35,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:57:35,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1316016365] [2020-04-18 19:57:35,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 19:57:35,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:57:35,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 19:57:35,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=406, Unknown=0, NotChecked=0, Total=600 [2020-04-18 19:57:35,131 INFO L87 Difference]: Start difference. First operand 3845 states and 12509 transitions. Second operand 13 states. [2020-04-18 19:57:35,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:35,330 INFO L93 Difference]: Finished difference Result 6041 states and 19440 transitions. [2020-04-18 19:57:35,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-18 19:57:35,331 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 39 [2020-04-18 19:57:35,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:57:35,352 INFO L225 Difference]: With dead ends: 6041 [2020-04-18 19:57:35,353 INFO L226 Difference]: Without dead ends: 4597 [2020-04-18 19:57:35,353 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=194, Invalid=406, Unknown=0, NotChecked=0, Total=600 [2020-04-18 19:57:35,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4597 states. [2020-04-18 19:57:35,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4597 to 3533. [2020-04-18 19:57:35,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3533 states. [2020-04-18 19:57:35,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 11317 transitions. [2020-04-18 19:57:35,484 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 11317 transitions. Word has length 39 [2020-04-18 19:57:35,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:57:35,484 INFO L479 AbstractCegarLoop]: Abstraction has 3533 states and 11317 transitions. [2020-04-18 19:57:35,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 19:57:35,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 11317 transitions. [2020-04-18 19:57:35,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:57:35,492 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:57:35,493 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:57:35,493 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:57:35,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:35,493 INFO L82 PathProgramCache]: Analyzing trace with hash -807243453, now seen corresponding path program 1 times [2020-04-18 19:57:35,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:57:35,494 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [402641451] [2020-04-18 19:57:35,495 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:35,499 INFO L259 McrAutomatonBuilder]: Finished intersection with 186 states and 403 transitions. [2020-04-18 19:57:35,500 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-04-18 19:57:35,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:57:35,501 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:57:35,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:35,502 INFO L82 PathProgramCache]: Analyzing trace with hash -829143941, now seen corresponding path program 2 times [2020-04-18 19:57:35,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:35,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141796130] [2020-04-18 19:57:35,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:35,572 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 19:57:35,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141796130] [2020-04-18 19:57:35,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:35,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:57:35,573 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:35,576 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:35,589 INFO L259 McrAutomatonBuilder]: Finished intersection with 120 states and 235 transitions. [2020-04-18 19:57:35,589 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:35,621 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:57:35,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:35,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:57:35,621 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 6 states. [2020-04-18 19:57:35,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:35,704 INFO L93 Difference]: Finished difference Result 204 states and 430 transitions. [2020-04-18 19:57:35,704 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 430 transitions. [2020-04-18 19:57:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:57:35,705 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:57:35,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:35,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1883356863, now seen corresponding path program 3 times [2020-04-18 19:57:35,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:35,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627268602] [2020-04-18 19:57:35,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:35,773 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 19:57:35,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627268602] [2020-04-18 19:57:35,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:35,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:57:35,774 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:35,777 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:35,789 INFO L259 McrAutomatonBuilder]: Finished intersection with 105 states and 193 transitions. [2020-04-18 19:57:35,789 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:35,803 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:57:35,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:35,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:57:35,804 INFO L87 Difference]: Start difference. First operand 204 states and 430 transitions. Second operand 6 states. [2020-04-18 19:57:35,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:35,898 INFO L93 Difference]: Finished difference Result 204 states and 430 transitions. [2020-04-18 19:57:35,898 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 430 transitions. [2020-04-18 19:57:35,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:57:35,899 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [402641451] [2020-04-18 19:57:35,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:57:35,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:57:35,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [402641451] [2020-04-18 19:57:35,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:57:35,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:57:35,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:57:35,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:57:35,901 INFO L87 Difference]: Start difference. First operand 3533 states and 11317 transitions. Second operand 7 states. [2020-04-18 19:57:35,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:35,973 INFO L93 Difference]: Finished difference Result 5273 states and 16706 transitions. [2020-04-18 19:57:35,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:57:35,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2020-04-18 19:57:35,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:57:35,988 INFO L225 Difference]: With dead ends: 5273 [2020-04-18 19:57:35,988 INFO L226 Difference]: Without dead ends: 3893 [2020-04-18 19:57:35,988 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:57:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3893 states. [2020-04-18 19:57:36,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3893 to 3237. [2020-04-18 19:57:36,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3237 states. [2020-04-18 19:57:36,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 10225 transitions. [2020-04-18 19:57:36,094 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 10225 transitions. Word has length 39 [2020-04-18 19:57:36,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:57:36,094 INFO L479 AbstractCegarLoop]: Abstraction has 3237 states and 10225 transitions. [2020-04-18 19:57:36,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:57:36,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 10225 transitions. [2020-04-18 19:57:36,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:57:36,102 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:57:36,102 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:57:36,102 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:57:36,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:36,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1595970777, now seen corresponding path program 1 times [2020-04-18 19:57:36,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:57:36,103 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1776383665] [2020-04-18 19:57:36,105 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:36,109 INFO L259 McrAutomatonBuilder]: Finished intersection with 202 states and 435 transitions. [2020-04-18 19:57:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2020-04-18 19:57:36,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:57:36,112 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:57:36,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:36,113 INFO L82 PathProgramCache]: Analyzing trace with hash 2006122351, now seen corresponding path program 2 times [2020-04-18 19:57:36,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:36,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806296009] [2020-04-18 19:57:36,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:36,236 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 19:57:36,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806296009] [2020-04-18 19:57:36,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:36,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:57:36,238 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:36,241 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:36,252 INFO L259 McrAutomatonBuilder]: Finished intersection with 96 states and 163 transitions. [2020-04-18 19:57:36,253 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:36,317 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times. [2020-04-18 19:57:36,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:57:36,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:57:36,318 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 7 states. [2020-04-18 19:57:36,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:36,637 INFO L93 Difference]: Finished difference Result 255 states and 523 transitions. [2020-04-18 19:57:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 523 transitions. [2020-04-18 19:57:36,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:57:36,639 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:57:36,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:36,639 INFO L82 PathProgramCache]: Analyzing trace with hash -715424515, now seen corresponding path program 3 times [2020-04-18 19:57:36,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:36,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173254512] [2020-04-18 19:57:36,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:36,712 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 19:57:36,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173254512] [2020-04-18 19:57:36,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:36,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:57:36,713 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:36,716 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:36,731 INFO L259 McrAutomatonBuilder]: Finished intersection with 113 states and 209 transitions. [2020-04-18 19:57:36,731 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:36,745 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 19:57:36,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:36,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-04-18 19:57:36,746 INFO L87 Difference]: Start difference. First operand 255 states and 523 transitions. Second operand 6 states. [2020-04-18 19:57:36,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:36,817 INFO L93 Difference]: Finished difference Result 283 states and 559 transitions. [2020-04-18 19:57:36,817 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 559 transitions. [2020-04-18 19:57:36,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:57:36,819 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 19:57:36,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:36,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1595970777, now seen corresponding path program 4 times [2020-04-18 19:57:36,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:36,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226064674] [2020-04-18 19:57:36,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:36,913 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 19:57:36,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226064674] [2020-04-18 19:57:36,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:36,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:57:36,914 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:36,918 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:36,932 INFO L259 McrAutomatonBuilder]: Finished intersection with 136 states and 267 transitions. [2020-04-18 19:57:36,932 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:37,249 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 25 times. [2020-04-18 19:57:37,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 19:57:37,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2020-04-18 19:57:37,250 INFO L87 Difference]: Start difference. First operand 283 states and 559 transitions. Second operand 17 states. [2020-04-18 19:57:37,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:37,582 INFO L93 Difference]: Finished difference Result 307 states and 597 transitions. [2020-04-18 19:57:37,583 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 597 transitions. [2020-04-18 19:57:37,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:57:37,584 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1776383665] [2020-04-18 19:57:37,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:57:37,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:57:37,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1776383665] [2020-04-18 19:57:37,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-18 19:57:37,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:57:37,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 19:57:37,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=856, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 19:57:37,587 INFO L87 Difference]: Start difference. First operand 3237 states and 10225 transitions. Second operand 19 states. [2020-04-18 19:57:37,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:37,961 INFO L93 Difference]: Finished difference Result 5585 states and 17550 transitions. [2020-04-18 19:57:37,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 19:57:37,962 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 39 [2020-04-18 19:57:37,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:57:37,976 INFO L225 Difference]: With dead ends: 5585 [2020-04-18 19:57:37,977 INFO L226 Difference]: Without dead ends: 4061 [2020-04-18 19:57:37,978 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=275, Invalid=915, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 19:57:37,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4061 states. [2020-04-18 19:57:38,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4061 to 2941. [2020-04-18 19:57:38,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2941 states. [2020-04-18 19:57:38,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2941 states to 2941 states and 9169 transitions. [2020-04-18 19:57:38,080 INFO L78 Accepts]: Start accepts. Automaton has 2941 states and 9169 transitions. Word has length 39 [2020-04-18 19:57:38,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:57:38,080 INFO L479 AbstractCegarLoop]: Abstraction has 2941 states and 9169 transitions. [2020-04-18 19:57:38,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-18 19:57:38,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2941 states and 9169 transitions. [2020-04-18 19:57:38,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:57:38,086 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:57:38,087 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:57:38,087 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:57:38,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:38,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1609184786, now seen corresponding path program 1 times [2020-04-18 19:57:38,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:57:38,088 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [677519040] [2020-04-18 19:57:38,089 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:38,097 INFO L259 McrAutomatonBuilder]: Finished intersection with 413 states and 1144 transitions. [2020-04-18 19:57:38,100 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-04-18 19:57:38,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:57:38,102 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:57:38,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:38,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1740816318, now seen corresponding path program 2 times [2020-04-18 19:57:38,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:38,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523030372] [2020-04-18 19:57:38,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:38,179 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 19:57:38,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523030372] [2020-04-18 19:57:38,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:38,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:57:38,181 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:38,183 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:38,258 INFO L259 McrAutomatonBuilder]: Finished intersection with 190 states and 446 transitions. [2020-04-18 19:57:38,259 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:38,297 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:57:38,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:38,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:57:38,298 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 6 states. [2020-04-18 19:57:38,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:38,399 INFO L93 Difference]: Finished difference Result 467 states and 1261 transitions. [2020-04-18 19:57:38,399 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 1261 transitions. [2020-04-18 19:57:38,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:57:38,400 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:57:38,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:38,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1609184786, now seen corresponding path program 3 times [2020-04-18 19:57:38,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:38,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516398440] [2020-04-18 19:57:38,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:38,496 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 19:57:38,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516398440] [2020-04-18 19:57:38,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:38,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:57:38,497 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:38,500 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:38,530 INFO L259 McrAutomatonBuilder]: Finished intersection with 257 states and 664 transitions. [2020-04-18 19:57:38,530 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:38,589 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 17 times. [2020-04-18 19:57:38,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:38,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:57:38,590 INFO L87 Difference]: Start difference. First operand 467 states and 1261 transitions. Second operand 6 states. [2020-04-18 19:57:38,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:38,660 INFO L93 Difference]: Finished difference Result 467 states and 1261 transitions. [2020-04-18 19:57:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 1261 transitions. [2020-04-18 19:57:38,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:57:38,662 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [677519040] [2020-04-18 19:57:38,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:57:38,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:57:38,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [677519040] [2020-04-18 19:57:38,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-18 19:57:38,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:57:38,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 19:57:38,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:57:38,664 INFO L87 Difference]: Start difference. First operand 2941 states and 9169 transitions. Second operand 10 states. [2020-04-18 19:57:38,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:38,935 INFO L93 Difference]: Finished difference Result 3694 states and 11270 transitions. [2020-04-18 19:57:38,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-18 19:57:38,936 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2020-04-18 19:57:38,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:57:38,946 INFO L225 Difference]: With dead ends: 3694 [2020-04-18 19:57:38,946 INFO L226 Difference]: Without dead ends: 2576 [2020-04-18 19:57:38,947 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=514, Unknown=0, NotChecked=0, Total=650 [2020-04-18 19:57:38,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2020-04-18 19:57:39,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2576. [2020-04-18 19:57:39,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2576 states. [2020-04-18 19:57:39,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 7831 transitions. [2020-04-18 19:57:39,022 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 7831 transitions. Word has length 40 [2020-04-18 19:57:39,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:57:39,023 INFO L479 AbstractCegarLoop]: Abstraction has 2576 states and 7831 transitions. [2020-04-18 19:57:39,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-18 19:57:39,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 7831 transitions. [2020-04-18 19:57:39,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:57:39,030 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:57:39,030 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:57:39,030 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:57:39,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:39,031 INFO L82 PathProgramCache]: Analyzing trace with hash -59821741, now seen corresponding path program 1 times [2020-04-18 19:57:39,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:57:39,031 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1155647287] [2020-04-18 19:57:39,032 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:39,050 INFO L259 McrAutomatonBuilder]: Finished intersection with 671 states and 1970 transitions. [2020-04-18 19:57:39,056 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states. [2020-04-18 19:57:39,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:57:39,059 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:57:39,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:39,059 INFO L82 PathProgramCache]: Analyzing trace with hash 885144451, now seen corresponding path program 2 times [2020-04-18 19:57:39,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:39,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326999231] [2020-04-18 19:57:39,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:39,141 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 19:57:39,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326999231] [2020-04-18 19:57:39,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:39,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:57:39,142 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:39,145 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:39,169 INFO L259 McrAutomatonBuilder]: Finished intersection with 170 states and 356 transitions. [2020-04-18 19:57:39,170 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:39,200 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:57:39,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:39,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:57:39,200 INFO L87 Difference]: Start difference. First operand 671 states. Second operand 6 states. [2020-04-18 19:57:39,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:39,295 INFO L93 Difference]: Finished difference Result 761 states and 2177 transitions. [2020-04-18 19:57:39,296 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 2177 transitions. [2020-04-18 19:57:39,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:57:39,298 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:57:39,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:39,298 INFO L82 PathProgramCache]: Analyzing trace with hash -59821741, now seen corresponding path program 3 times [2020-04-18 19:57:39,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:39,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580374200] [2020-04-18 19:57:39,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:39,402 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 19:57:39,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580374200] [2020-04-18 19:57:39,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:39,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:57:39,404 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:39,407 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:39,435 INFO L259 McrAutomatonBuilder]: Finished intersection with 227 states and 524 transitions. [2020-04-18 19:57:39,435 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:39,539 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 13 times. [2020-04-18 19:57:39,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:57:39,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:57:39,540 INFO L87 Difference]: Start difference. First operand 761 states and 2177 transitions. Second operand 8 states. [2020-04-18 19:57:39,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:39,663 INFO L93 Difference]: Finished difference Result 761 states and 2177 transitions. [2020-04-18 19:57:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 2177 transitions. [2020-04-18 19:57:39,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:57:39,666 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1155647287] [2020-04-18 19:57:39,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:57:39,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:57:39,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1155647287] [2020-04-18 19:57:39,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 19:57:39,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:57:39,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 19:57:39,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2020-04-18 19:57:39,667 INFO L87 Difference]: Start difference. First operand 2576 states and 7831 transitions. Second operand 12 states. [2020-04-18 19:57:39,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:39,950 INFO L93 Difference]: Finished difference Result 2549 states and 7498 transitions. [2020-04-18 19:57:39,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-04-18 19:57:39,951 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2020-04-18 19:57:39,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:57:39,957 INFO L225 Difference]: With dead ends: 2549 [2020-04-18 19:57:39,958 INFO L226 Difference]: Without dead ends: 1581 [2020-04-18 19:57:39,958 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=647, Unknown=0, NotChecked=0, Total=812 [2020-04-18 19:57:39,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2020-04-18 19:57:39,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2020-04-18 19:57:39,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1581 states. [2020-04-18 19:57:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 4525 transitions. [2020-04-18 19:57:39,995 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 4525 transitions. Word has length 42 [2020-04-18 19:57:39,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:57:39,996 INFO L479 AbstractCegarLoop]: Abstraction has 1581 states and 4525 transitions. [2020-04-18 19:57:39,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 19:57:39,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 4525 transitions. [2020-04-18 19:57:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-04-18 19:57:39,999 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:57:39,999 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:57:39,999 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:57:40,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:40,000 INFO L82 PathProgramCache]: Analyzing trace with hash 2001898960, now seen corresponding path program 1 times [2020-04-18 19:57:40,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:57:40,000 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [617669131] [2020-04-18 19:57:40,002 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:40,032 INFO L259 McrAutomatonBuilder]: Finished intersection with 1061 states and 3292 transitions. [2020-04-18 19:57:40,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states. [2020-04-18 19:57:40,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-04-18 19:57:40,047 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:57:40,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:40,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1777911108, now seen corresponding path program 2 times [2020-04-18 19:57:40,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:40,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155444476] [2020-04-18 19:57:40,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:40,205 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 19:57:40,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155444476] [2020-04-18 19:57:40,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:40,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:57:40,207 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:40,210 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:40,255 INFO L259 McrAutomatonBuilder]: Finished intersection with 317 states and 736 transitions. [2020-04-18 19:57:40,255 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:40,302 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:57:40,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:57:40,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:57:40,303 INFO L87 Difference]: Start difference. First operand 1061 states. Second operand 6 states. [2020-04-18 19:57:40,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:40,448 INFO L93 Difference]: Finished difference Result 1879 states and 5613 transitions. [2020-04-18 19:57:40,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 5613 transitions. [2020-04-18 19:57:40,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-04-18 19:57:40,453 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:57:40,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:57:40,453 INFO L82 PathProgramCache]: Analyzing trace with hash 832944916, now seen corresponding path program 3 times [2020-04-18 19:57:40,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:57:40,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512509130] [2020-04-18 19:57:40,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:57:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:57:40,610 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 19:57:40,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512509130] [2020-04-18 19:57:40,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:57:40,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:57:40,611 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:57:40,616 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:57:40,660 INFO L259 McrAutomatonBuilder]: Finished intersection with 299 states and 693 transitions. [2020-04-18 19:57:40,661 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:57:40,866 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 23 times. [2020-04-18 19:57:40,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 19:57:40,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2020-04-18 19:57:40,868 INFO L87 Difference]: Start difference. First operand 1879 states and 5613 transitions. Second operand 12 states. [2020-04-18 19:57:41,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:41,267 INFO L93 Difference]: Finished difference Result 1885 states and 5619 transitions. [2020-04-18 19:57:41,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 5619 transitions. [2020-04-18 19:57:41,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:57:41,272 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [617669131] [2020-04-18 19:57:41,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:57:41,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:57:41,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [617669131] [2020-04-18 19:57:41,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-04-18 19:57:41,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:57:41,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 19:57:41,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=795, Unknown=0, NotChecked=0, Total=992 [2020-04-18 19:57:41,276 INFO L87 Difference]: Start difference. First operand 1581 states and 4525 transitions. Second operand 16 states. [2020-04-18 19:57:41,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:57:41,555 INFO L93 Difference]: Finished difference Result 1068 states and 2887 transitions. [2020-04-18 19:57:41,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-18 19:57:41,555 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 44 [2020-04-18 19:57:41,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:57:41,556 INFO L225 Difference]: With dead ends: 1068 [2020-04-18 19:57:41,556 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:57:41,556 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=1083, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 19:57:41,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:57:41,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:57:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:57:41,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:57:41,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-04-18 19:57:41,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:57:41,558 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:57:41,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-04-18 19:57:41,558 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:57:41,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:57:41,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:57:41 BasicIcfg [2020-04-18 19:57:41,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:57:41,568 INFO L168 Benchmark]: Toolchain (without parser) took 13927.62 ms. Allocated memory was 135.8 MB in the beginning and 524.8 MB in the end (delta: 389.0 MB). Free memory was 97.9 MB in the beginning and 174.6 MB in the end (delta: -76.7 MB). Peak memory consumption was 312.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:57:41,569 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 117.7 MB in the beginning and 117.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 19:57:41,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.22 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 96.0 MB in the beginning and 157.4 MB in the end (delta: -61.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-04-18 19:57:41,570 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.39 ms. Allocated memory is still 200.3 MB. Free memory was 157.4 MB in the beginning and 155.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-18 19:57:41,571 INFO L168 Benchmark]: Boogie Preprocessor took 27.37 ms. Allocated memory is still 200.3 MB. Free memory was 155.2 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 19:57:41,572 INFO L168 Benchmark]: RCFGBuilder took 422.56 ms. Allocated memory is still 200.3 MB. Free memory was 153.7 MB in the beginning and 131.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-04-18 19:57:41,573 INFO L168 Benchmark]: TraceAbstraction took 12734.49 ms. Allocated memory was 200.3 MB in the beginning and 524.8 MB in the end (delta: 324.5 MB). Free memory was 131.8 MB in the beginning and 174.6 MB in the end (delta: -42.8 MB). Peak memory consumption was 281.7 MB. Max. memory is 7.1 GB. [2020-04-18 19:57:41,579 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 117.7 MB in the beginning and 117.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 663.22 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 96.0 MB in the beginning and 157.4 MB in the end (delta: -61.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.39 ms. Allocated memory is still 200.3 MB. Free memory was 157.4 MB in the beginning and 155.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.37 ms. Allocated memory is still 200.3 MB. Free memory was 155.2 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.56 ms. Allocated memory is still 200.3 MB. Free memory was 153.7 MB in the beginning and 131.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12734.49 ms. Allocated memory was 200.3 MB in the beginning and 524.8 MB in the end (delta: 324.5 MB). Free memory was 131.8 MB in the beginning and 174.6 MB in the end (delta: -42.8 MB). Peak memory consumption was 281.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 12.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 1012 SDtfs, 2285 SDslu, 5341 SDs, 0 SdLazy, 852 SolverSat, 125 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1060 GetRequests, 861 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1148 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8470occurred 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: 1.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 4656 StatesRemovedByMinimization, 7 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...