/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/safe028_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:53:05,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:53:05,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:53:05,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:53:05,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:53:05,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:53:05,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:53:05,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:53:05,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:53:05,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:53:05,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:53:05,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:53:05,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:53:05,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:53:05,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:53:05,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:53:05,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:53:05,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:53:05,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:53:05,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:53:05,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:53:05,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:53:05,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:53:05,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:53:05,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:53:05,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:53:05,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:53:05,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:53:05,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:53:05,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:53:05,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:53:05,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:53:05,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:53:05,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:53:05,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:53:05,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:53:05,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:53:05,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:53:05,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:53:05,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:53:05,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:53:05,350 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 19:53:05,364 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:53:05,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:53:05,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:53:05,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:53:05,366 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:53:05,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:53:05,367 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:53:05,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:53:05,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:53:05,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:53:05,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:53:05,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:53:05,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:53:05,368 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:53:05,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:53:05,368 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:53:05,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:53:05,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:53:05,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:53:05,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:53:05,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:53:05,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:53:05,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:53:05,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:53:05,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:53:05,371 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:53:05,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:53:05,371 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:53:05,371 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:53:05,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:53:05,371 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:53:05,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:53:05,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:53:05,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:53:05,687 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:53:05,687 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:53:05,688 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-04-18 19:53:05,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da3dc2f79/41228ffb45804e02b6c6b296b84dd9fe/FLAG84c083ba5 [2020-04-18 19:53:06,433 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:53:06,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-04-18 19:53:06,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da3dc2f79/41228ffb45804e02b6c6b296b84dd9fe/FLAG84c083ba5 [2020-04-18 19:53:06,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da3dc2f79/41228ffb45804e02b6c6b296b84dd9fe [2020-04-18 19:53:06,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:53:06,680 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:53:06,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:53:06,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:53:06,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:53:06,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:53:06" (1/1) ... [2020-04-18 19:53:06,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17590af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:06, skipping insertion in model container [2020-04-18 19:53:06,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:53:06" (1/1) ... [2020-04-18 19:53:06,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:53:06,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:53:07,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:53:07,280 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:53:07,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:53:07,419 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:53:07,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07 WrapperNode [2020-04-18 19:53:07,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:53:07,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:53:07,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:53:07,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:53:07,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07" (1/1) ... [2020-04-18 19:53:07,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07" (1/1) ... [2020-04-18 19:53:07,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:53:07,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:53:07,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:53:07,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:53:07,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07" (1/1) ... [2020-04-18 19:53:07,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07" (1/1) ... [2020-04-18 19:53:07,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07" (1/1) ... [2020-04-18 19:53:07,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07" (1/1) ... [2020-04-18 19:53:07,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07" (1/1) ... [2020-04-18 19:53:07,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07" (1/1) ... [2020-04-18 19:53:07,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07" (1/1) ... [2020-04-18 19:53:07,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:53:07,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:53:07,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:53:07,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:53:07,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07" (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 19:53:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:53:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:53:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:53:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:53:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:53:07,582 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:53:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:53:07,583 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:53:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 19:53:07,583 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 19:53:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:53:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:53:07,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:53:07,585 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 19:53:07,966 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:53:07,966 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:53:07,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:53:07 BoogieIcfgContainer [2020-04-18 19:53:07,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:53:07,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:53:07,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:53:07,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:53:07,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:53:06" (1/3) ... [2020-04-18 19:53:07,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d75e8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:53:07, skipping insertion in model container [2020-04-18 19:53:07,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:53:07" (2/3) ... [2020-04-18 19:53:07,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d75e8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:53:07, skipping insertion in model container [2020-04-18 19:53:07,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:53:07" (3/3) ... [2020-04-18 19:53:07,980 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc.i [2020-04-18 19:53:07,991 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:53:07,991 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:53:07,997 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:53:07,998 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:53:08,037 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,038 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,038 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,039 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,040 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,040 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,041 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,041 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,042 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,042 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,042 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,043 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,043 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,043 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,044 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,044 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,046 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,046 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,051 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,052 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,052 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,052 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,066 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,067 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,067 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,067 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,076 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,076 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,076 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,077 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:53:08,103 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 19:53:08,130 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:53:08,130 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:53:08,130 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:53:08,131 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:53:08,132 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:53:08,132 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:53:08,132 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:53:08,133 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:53:08,151 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 19:53:08,636 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7268 states. [2020-04-18 19:53:08,640 INFO L276 IsEmpty]: Start isEmpty. Operand 7268 states. [2020-04-18 19:53:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:53:08,675 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:08,676 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 19:53:08,677 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:08,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:08,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1749580001, now seen corresponding path program 1 times [2020-04-18 19:53:08,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:08,692 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1395812373] [2020-04-18 19:53:08,709 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:08,726 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 36 transitions. [2020-04-18 19:53:08,729 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-04-18 19:53:08,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:53:08,730 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:08,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:08,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1749580001, now seen corresponding path program 2 times [2020-04-18 19:53:08,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:08,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817499522] [2020-04-18 19:53:08,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:09,247 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 19:53:09,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817499522] [2020-04-18 19:53:09,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:09,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:09,251 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:09,255 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:09,265 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 36 transitions. [2020-04-18 19:53:09,266 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:09,325 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:53:09,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:09,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:53:09,332 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 7 states. [2020-04-18 19:53:09,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:09,416 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2020-04-18 19:53:09,416 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2020-04-18 19:53:09,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:09,417 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1395812373] [2020-04-18 19:53:09,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:09,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:53:09,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1395812373] [2020-04-18 19:53:09,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:53:09,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:09,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:09,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:53:09,426 INFO L87 Difference]: Start difference. First operand 7268 states. Second operand 7 states. [2020-04-18 19:53:09,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:09,773 INFO L93 Difference]: Finished difference Result 10040 states and 34690 transitions. [2020-04-18 19:53:09,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:53:09,775 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-04-18 19:53:09,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:09,838 INFO L225 Difference]: With dead ends: 10040 [2020-04-18 19:53:09,838 INFO L226 Difference]: Without dead ends: 3530 [2020-04-18 19:53:09,845 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:53:09,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3530 states. [2020-04-18 19:53:10,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3530 to 3530. [2020-04-18 19:53:10,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3530 states. [2020-04-18 19:53:10,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 11925 transitions. [2020-04-18 19:53:10,110 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 11925 transitions. Word has length 36 [2020-04-18 19:53:10,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:10,112 INFO L479 AbstractCegarLoop]: Abstraction has 3530 states and 11925 transitions. [2020-04-18 19:53:10,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:53:10,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 11925 transitions. [2020-04-18 19:53:10,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:53:10,120 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:10,120 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 19:53:10,121 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:10,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:10,121 INFO L82 PathProgramCache]: Analyzing trace with hash 684595906, now seen corresponding path program 1 times [2020-04-18 19:53:10,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:10,122 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1715604958] [2020-04-18 19:53:10,123 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:10,125 INFO L259 McrAutomatonBuilder]: Finished intersection with 63 states and 86 transitions. [2020-04-18 19:53:10,126 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2020-04-18 19:53:10,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:53:10,127 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:10,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:10,127 INFO L82 PathProgramCache]: Analyzing trace with hash 684595906, now seen corresponding path program 2 times [2020-04-18 19:53:10,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:10,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802766025] [2020-04-18 19:53:10,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:10,345 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 19:53:10,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802766025] [2020-04-18 19:53:10,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:10,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:10,346 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:10,350 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:10,355 INFO L259 McrAutomatonBuilder]: Finished intersection with 51 states and 62 transitions. [2020-04-18 19:53:10,355 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:10,424 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 19:53:10,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:10,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:53:10,425 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 7 states. [2020-04-18 19:53:10,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:10,566 INFO L93 Difference]: Finished difference Result 69 states and 91 transitions. [2020-04-18 19:53:10,567 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2020-04-18 19:53:10,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:53:10,568 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:53:10,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:10,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1930073254, now seen corresponding path program 3 times [2020-04-18 19:53:10,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:10,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040436897] [2020-04-18 19:53:10,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:10,717 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 19:53:10,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040436897] [2020-04-18 19:53:10,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:10,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:53:10,719 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:10,722 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:10,728 INFO L259 McrAutomatonBuilder]: Finished intersection with 56 states and 72 transitions. [2020-04-18 19:53:10,729 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:10,814 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:53:10,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:53:10,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:53:10,815 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand 6 states. [2020-04-18 19:53:10,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:10,939 INFO L93 Difference]: Finished difference Result 69 states and 91 transitions. [2020-04-18 19:53:10,939 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2020-04-18 19:53:10,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:10,940 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1715604958] [2020-04-18 19:53:10,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:10,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:53:10,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1715604958] [2020-04-18 19:53:10,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:53:10,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:10,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:53:10,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:53:10,943 INFO L87 Difference]: Start difference. First operand 3530 states and 11925 transitions. Second operand 8 states. [2020-04-18 19:53:11,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:11,153 INFO L93 Difference]: Finished difference Result 4930 states and 16520 transitions. [2020-04-18 19:53:11,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:53:11,154 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-04-18 19:53:11,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:11,174 INFO L225 Difference]: With dead ends: 4930 [2020-04-18 19:53:11,174 INFO L226 Difference]: Without dead ends: 2620 [2020-04-18 19:53:11,175 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2020-04-18 19:53:11,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2020-04-18 19:53:11,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 2620. [2020-04-18 19:53:11,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2620 states. [2020-04-18 19:53:11,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 8569 transitions. [2020-04-18 19:53:11,267 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 8569 transitions. Word has length 38 [2020-04-18 19:53:11,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:11,267 INFO L479 AbstractCegarLoop]: Abstraction has 2620 states and 8569 transitions. [2020-04-18 19:53:11,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:53:11,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 8569 transitions. [2020-04-18 19:53:11,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:53:11,274 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:11,274 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 19:53:11,274 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:11,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:11,275 INFO L82 PathProgramCache]: Analyzing trace with hash 164325217, now seen corresponding path program 1 times [2020-04-18 19:53:11,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:11,275 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1481263795] [2020-04-18 19:53:11,276 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:11,282 INFO L259 McrAutomatonBuilder]: Finished intersection with 149 states and 304 transitions. [2020-04-18 19:53:11,284 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2020-04-18 19:53:11,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:53:11,285 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:11,285 INFO L82 PathProgramCache]: Analyzing trace with hash 164325217, now seen corresponding path program 2 times [2020-04-18 19:53:11,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:11,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799727244] [2020-04-18 19:53:11,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:11,406 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 19:53:11,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799727244] [2020-04-18 19:53:11,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:11,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:53:11,408 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:11,412 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:11,430 INFO L259 McrAutomatonBuilder]: Finished intersection with 87 states and 144 transitions. [2020-04-18 19:53:11,431 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:11,471 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:53:11,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:53:11,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:53:11,473 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 6 states. [2020-04-18 19:53:11,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:11,526 INFO L93 Difference]: Finished difference Result 149 states and 304 transitions. [2020-04-18 19:53:11,526 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 304 transitions. [2020-04-18 19:53:11,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:11,527 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1481263795] [2020-04-18 19:53:11,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:11,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:53:11,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1481263795] [2020-04-18 19:53:11,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:53:11,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:11,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:53:11,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:53:11,529 INFO L87 Difference]: Start difference. First operand 2620 states and 8569 transitions. Second operand 6 states. [2020-04-18 19:53:11,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:11,671 INFO L93 Difference]: Finished difference Result 3308 states and 10677 transitions. [2020-04-18 19:53:11,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:53:11,681 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-04-18 19:53:11,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:11,697 INFO L225 Difference]: With dead ends: 3308 [2020-04-18 19:53:11,698 INFO L226 Difference]: Without dead ends: 2412 [2020-04-18 19:53:11,699 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 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 19:53:11,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2020-04-18 19:53:11,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2020-04-18 19:53:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2412 states. [2020-04-18 19:53:11,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 7777 transitions. [2020-04-18 19:53:11,774 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 7777 transitions. Word has length 40 [2020-04-18 19:53:11,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:11,775 INFO L479 AbstractCegarLoop]: Abstraction has 2412 states and 7777 transitions. [2020-04-18 19:53:11,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:53:11,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 7777 transitions. [2020-04-18 19:53:11,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:53:11,780 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:11,780 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] [2020-04-18 19:53:11,781 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:11,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:11,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1288769191, now seen corresponding path program 1 times [2020-04-18 19:53:11,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:11,782 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1431277048] [2020-04-18 19:53:11,783 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:11,788 INFO L259 McrAutomatonBuilder]: Finished intersection with 192 states and 413 transitions. [2020-04-18 19:53:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-04-18 19:53:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:53:11,792 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:11,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:11,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1288769191, now seen corresponding path program 2 times [2020-04-18 19:53:11,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:11,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852962625] [2020-04-18 19:53:11,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:11,951 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 19:53:11,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852962625] [2020-04-18 19:53:11,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:11,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:11,952 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:11,957 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:11,965 INFO L259 McrAutomatonBuilder]: Finished intersection with 77 states and 115 transitions. [2020-04-18 19:53:11,965 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:12,056 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:53:12,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:53:12,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:53:12,058 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 8 states. [2020-04-18 19:53:12,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:12,185 INFO L93 Difference]: Finished difference Result 192 states and 413 transitions. [2020-04-18 19:53:12,186 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 413 transitions. [2020-04-18 19:53:12,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:12,187 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1431277048] [2020-04-18 19:53:12,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:12,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:53:12,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1431277048] [2020-04-18 19:53:12,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:53:12,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:12,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:53:12,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-04-18 19:53:12,189 INFO L87 Difference]: Start difference. First operand 2412 states and 7777 transitions. Second operand 8 states. [2020-04-18 19:53:12,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:12,308 INFO L93 Difference]: Finished difference Result 2508 states and 7847 transitions. [2020-04-18 19:53:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:53:12,309 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-04-18 19:53:12,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:12,322 INFO L225 Difference]: With dead ends: 2508 [2020-04-18 19:53:12,322 INFO L226 Difference]: Without dead ends: 1740 [2020-04-18 19:53:12,322 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-04-18 19:53:12,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2020-04-18 19:53:12,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1740. [2020-04-18 19:53:12,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1740 states. [2020-04-18 19:53:12,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 5343 transitions. [2020-04-18 19:53:12,374 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 5343 transitions. Word has length 41 [2020-04-18 19:53:12,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:12,375 INFO L479 AbstractCegarLoop]: Abstraction has 1740 states and 5343 transitions. [2020-04-18 19:53:12,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:53:12,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 5343 transitions. [2020-04-18 19:53:12,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:53:12,380 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:12,380 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] [2020-04-18 19:53:12,380 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:12,381 INFO L82 PathProgramCache]: Analyzing trace with hash -475008714, now seen corresponding path program 1 times [2020-04-18 19:53:12,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:12,381 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [128216761] [2020-04-18 19:53:12,383 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:12,389 INFO L259 McrAutomatonBuilder]: Finished intersection with 296 states and 691 transitions. [2020-04-18 19:53:12,391 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-04-18 19:53:12,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:53:12,393 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:12,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:12,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1926953606, now seen corresponding path program 2 times [2020-04-18 19:53:12,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:12,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019677140] [2020-04-18 19:53:12,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:12,551 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 19:53:12,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019677140] [2020-04-18 19:53:12,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:12,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:12,553 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:12,557 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:12,570 INFO L259 McrAutomatonBuilder]: Finished intersection with 97 states and 154 transitions. [2020-04-18 19:53:12,571 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:12,646 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 17 times. [2020-04-18 19:53:12,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:53:12,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:53:12,647 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 9 states. [2020-04-18 19:53:12,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:12,956 INFO L93 Difference]: Finished difference Result 296 states and 691 transitions. [2020-04-18 19:53:12,957 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 691 transitions. [2020-04-18 19:53:12,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:12,958 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [128216761] [2020-04-18 19:53:12,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:12,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:53:12,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [128216761] [2020-04-18 19:53:12,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:53:12,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:12,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:53:12,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:53:12,960 INFO L87 Difference]: Start difference. First operand 1740 states and 5343 transitions. Second operand 9 states. [2020-04-18 19:53:13,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:13,093 INFO L93 Difference]: Finished difference Result 1389 states and 4110 transitions. [2020-04-18 19:53:13,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 19:53:13,094 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2020-04-18 19:53:13,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:13,100 INFO L225 Difference]: With dead ends: 1389 [2020-04-18 19:53:13,101 INFO L226 Difference]: Without dead ends: 957 [2020-04-18 19:53:13,101 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2020-04-18 19:53:13,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-04-18 19:53:13,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 957. [2020-04-18 19:53:13,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 957 states. [2020-04-18 19:53:13,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 2733 transitions. [2020-04-18 19:53:13,128 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 2733 transitions. Word has length 43 [2020-04-18 19:53:13,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:13,129 INFO L479 AbstractCegarLoop]: Abstraction has 957 states and 2733 transitions. [2020-04-18 19:53:13,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:53:13,129 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 2733 transitions. [2020-04-18 19:53:13,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:13,132 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:53:13,132 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, 1, 1, 1] [2020-04-18 19:53:13,132 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:53:13,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:13,133 INFO L82 PathProgramCache]: Analyzing trace with hash 755815284, now seen corresponding path program 1 times [2020-04-18 19:53:13,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:53:13,133 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [388442443] [2020-04-18 19:53:13,135 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:13,168 INFO L259 McrAutomatonBuilder]: Finished intersection with 1416 states and 4511 transitions. [2020-04-18 19:53:13,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states. [2020-04-18 19:53:13,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:13,184 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:53:13,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:13,185 INFO L82 PathProgramCache]: Analyzing trace with hash -151719176, now seen corresponding path program 2 times [2020-04-18 19:53:13,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:13,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209601073] [2020-04-18 19:53:13,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:13,313 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 19:53:13,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209601073] [2020-04-18 19:53:13,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:13,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:13,314 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:13,319 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:13,360 INFO L259 McrAutomatonBuilder]: Finished intersection with 189 states and 380 transitions. [2020-04-18 19:53:13,360 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:13,415 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:53:13,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:53:13,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:53:13,416 INFO L87 Difference]: Start difference. First operand 1416 states. Second operand 7 states. [2020-04-18 19:53:13,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:13,638 INFO L93 Difference]: Finished difference Result 1936 states and 5969 transitions. [2020-04-18 19:53:13,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 5969 transitions. [2020-04-18 19:53:13,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:13,646 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:53:13,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:13,646 INFO L82 PathProgramCache]: Analyzing trace with hash -325708810, now seen corresponding path program 3 times [2020-04-18 19:53:13,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:13,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219738997] [2020-04-18 19:53:13,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:13,794 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 19:53:13,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219738997] [2020-04-18 19:53:13,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:13,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:13,795 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:13,800 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:13,877 INFO L259 McrAutomatonBuilder]: Finished intersection with 179 states and 358 transitions. [2020-04-18 19:53:13,877 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:14,023 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:53:14,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:53:14,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2020-04-18 19:53:14,025 INFO L87 Difference]: Start difference. First operand 1936 states and 5969 transitions. Second operand 9 states. [2020-04-18 19:53:14,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:14,450 INFO L93 Difference]: Finished difference Result 1956 states and 5987 transitions. [2020-04-18 19:53:14,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 5987 transitions. [2020-04-18 19:53:14,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:14,456 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 19:53:14,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:14,457 INFO L82 PathProgramCache]: Analyzing trace with hash 287322360, now seen corresponding path program 4 times [2020-04-18 19:53:14,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:14,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534589931] [2020-04-18 19:53:14,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:14,558 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 19:53:14,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534589931] [2020-04-18 19:53:14,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:14,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:53:14,560 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:14,564 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:14,608 INFO L259 McrAutomatonBuilder]: Finished intersection with 277 states and 632 transitions. [2020-04-18 19:53:14,608 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:14,767 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 31 times. [2020-04-18 19:53:14,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 19:53:14,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1044, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 19:53:14,768 INFO L87 Difference]: Start difference. First operand 1956 states and 5987 transitions. Second operand 11 states. [2020-04-18 19:53:16,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:16,271 INFO L93 Difference]: Finished difference Result 3428 states and 9987 transitions. [2020-04-18 19:53:16,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 9987 transitions. [2020-04-18 19:53:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:16,277 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 19:53:16,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:16,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1006505336, now seen corresponding path program 5 times [2020-04-18 19:53:16,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:16,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198620529] [2020-04-18 19:53:16,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:16,386 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 19:53:16,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198620529] [2020-04-18 19:53:16,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:16,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:16,387 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:16,392 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:16,440 INFO L259 McrAutomatonBuilder]: Finished intersection with 387 states and 984 transitions. [2020-04-18 19:53:16,441 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:16,597 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 43 times. [2020-04-18 19:53:16,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 19:53:16,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=3311, Unknown=0, NotChecked=0, Total=3906 [2020-04-18 19:53:16,598 INFO L87 Difference]: Start difference. First operand 3428 states and 9987 transitions. Second operand 12 states. [2020-04-18 19:53:16,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:16,775 INFO L93 Difference]: Finished difference Result 3904 states and 11173 transitions. [2020-04-18 19:53:16,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 11173 transitions. [2020-04-18 19:53:16,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 19:53:16,783 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 19:53:16,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:53:16,784 INFO L82 PathProgramCache]: Analyzing trace with hash -543794384, now seen corresponding path program 6 times [2020-04-18 19:53:16,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:53:16,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062047131] [2020-04-18 19:53:16,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:53:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:53:16,921 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 19:53:16,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062047131] [2020-04-18 19:53:16,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:53:16,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:53:16,923 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:53:16,927 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:53:16,968 INFO L259 McrAutomatonBuilder]: Finished intersection with 260 states and 588 transitions. [2020-04-18 19:53:16,968 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:53:17,047 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 27 times. [2020-04-18 19:53:17,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:53:17,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=693, Invalid=3999, Unknown=0, NotChecked=0, Total=4692 [2020-04-18 19:53:17,049 INFO L87 Difference]: Start difference. First operand 3904 states and 11173 transitions. Second operand 8 states. [2020-04-18 19:53:17,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:17,401 INFO L93 Difference]: Finished difference Result 5410 states and 15120 transitions. [2020-04-18 19:53:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 15120 transitions. [2020-04-18 19:53:17,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:17,411 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [388442443] [2020-04-18 19:53:17,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:53:17,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:53:17,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [388442443] [2020-04-18 19:53:17,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-04-18 19:53:17,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:53:17,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 19:53:17,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=841, Invalid=5165, Unknown=0, NotChecked=0, Total=6006 [2020-04-18 19:53:17,414 INFO L87 Difference]: Start difference. First operand 957 states and 2733 transitions. Second operand 23 states. [2020-04-18 19:53:18,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:53:18,643 INFO L93 Difference]: Finished difference Result 1338 states and 3844 transitions. [2020-04-18 19:53:18,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-04-18 19:53:18,644 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 47 [2020-04-18 19:53:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:53:18,644 INFO L225 Difference]: With dead ends: 1338 [2020-04-18 19:53:18,644 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:53:18,648 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 372 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3951 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1668, Invalid=9888, Unknown=0, NotChecked=0, Total=11556 [2020-04-18 19:53:18,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:53:18,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:53:18,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:53:18,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:53:18,649 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2020-04-18 19:53:18,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:53:18,649 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:53:18,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-04-18 19:53:18,650 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:53:18,650 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:53:18,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:53:18 BasicIcfg [2020-04-18 19:53:18,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:53:18,658 INFO L168 Benchmark]: Toolchain (without parser) took 11998.60 ms. Allocated memory was 142.1 MB in the beginning and 467.1 MB in the end (delta: 325.1 MB). Free memory was 98.7 MB in the beginning and 77.3 MB in the end (delta: 21.4 MB). Peak memory consumption was 346.4 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:18,659 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 19:53:18,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.79 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 96.7 MB in the beginning and 156.8 MB in the end (delta: -60.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:18,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.35 ms. Allocated memory is still 199.8 MB. Free memory was 156.8 MB in the beginning and 154.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:18,661 INFO L168 Benchmark]: Boogie Preprocessor took 27.80 ms. Allocated memory is still 199.8 MB. Free memory was 154.5 MB in the beginning and 153.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:18,662 INFO L168 Benchmark]: RCFGBuilder took 463.55 ms. Allocated memory is still 199.8 MB. Free memory was 153.1 MB in the beginning and 131.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:18,663 INFO L168 Benchmark]: TraceAbstraction took 10683.36 ms. Allocated memory was 199.8 MB in the beginning and 467.1 MB in the end (delta: 267.4 MB). Free memory was 130.4 MB in the beginning and 77.3 MB in the end (delta: 53.1 MB). Peak memory consumption was 320.5 MB. Max. memory is 7.1 GB. [2020-04-18 19:53:18,666 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 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 738.79 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 96.7 MB in the beginning and 156.8 MB in the end (delta: -60.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.35 ms. Allocated memory is still 199.8 MB. Free memory was 156.8 MB in the beginning and 154.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.80 ms. Allocated memory is still 199.8 MB. Free memory was 154.5 MB in the beginning and 153.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 463.55 ms. Allocated memory is still 199.8 MB. Free memory was 153.1 MB in the beginning and 131.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10683.36 ms. Allocated memory was 199.8 MB in the beginning and 467.1 MB in the end (delta: 267.4 MB). Free memory was 130.4 MB in the beginning and 77.3 MB in the end (delta: 53.1 MB). Peak memory consumption was 320.5 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 520 SDtfs, 1484 SDslu, 2549 SDs, 0 SdLazy, 541 SolverSat, 138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 815 GetRequests, 639 SyntacticMatches, 1 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4098 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7268occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...