/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/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:11:01,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:11:01,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:11:01,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:11:01,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:11:01,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:11:01,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:11:01,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:11:01,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:11:01,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:11:01,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:11:01,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:11:01,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:11:01,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:11:01,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:11:01,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:11:01,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:11:01,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:11:01,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:11:01,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:11:01,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:11:01,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:11:01,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:11:01,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:11:01,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:11:01,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:11:01,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:11:01,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:11:01,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:11:01,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:11:01,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:11:01,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:11:01,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:11:01,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:11:01,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:11:01,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:11:01,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:11:01,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:11:01,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:11:01,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:11:01,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:11:01,735 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 20:11:01,749 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:11:01,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:11:01,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:11:01,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:11:01,751 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:11:01,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:11:01,752 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:11:01,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:11:01,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:11:01,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:11:01,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:11:01,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:11:01,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:11:01,753 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:11:01,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:11:01,753 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:11:01,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:11:01,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:11:01,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:11:01,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:11:01,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:11:01,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:11:01,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:11:01,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:11:01,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:11:01,755 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:11:01,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:11:01,756 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:11:01,756 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:11:01,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:11:01,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:11:02,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:11:02,038 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:11:02,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:11:02,043 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:11:02,044 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:11:02,046 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2020-04-18 20:11:02,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53347fd33/5a0da89b24af4315aadd1131637f80a0/FLAG7d0944a44 [2020-04-18 20:11:02,723 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:11:02,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2020-04-18 20:11:02,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53347fd33/5a0da89b24af4315aadd1131637f80a0/FLAG7d0944a44 [2020-04-18 20:11:02,931 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53347fd33/5a0da89b24af4315aadd1131637f80a0 [2020-04-18 20:11:02,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:11:02,966 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:11:02,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:11:02,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:11:02,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:11:02,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:11:02" (1/1) ... [2020-04-18 20:11:02,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16822533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:02, skipping insertion in model container [2020-04-18 20:11:02,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:11:02" (1/1) ... [2020-04-18 20:11:02,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:11:03,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:11:03,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:11:03,959 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:11:04,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:11:04,532 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:11:04,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04 WrapperNode [2020-04-18 20:11:04,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:11:04,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:11:04,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:11:04,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:11:04,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04" (1/1) ... [2020-04-18 20:11:04,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04" (1/1) ... [2020-04-18 20:11:04,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:11:04,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:11:04,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:11:04,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:11:04,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04" (1/1) ... [2020-04-18 20:11:04,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04" (1/1) ... [2020-04-18 20:11:04,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04" (1/1) ... [2020-04-18 20:11:04,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04" (1/1) ... [2020-04-18 20:11:04,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04" (1/1) ... [2020-04-18 20:11:04,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04" (1/1) ... [2020-04-18 20:11:04,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04" (1/1) ... [2020-04-18 20:11:04,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:11:04,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:11:04,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:11:04,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:11:04,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04" (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 20:11:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:11:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 20:11:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 20:11:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-04-18 20:11:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:11:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:11:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-04-18 20:11:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-04-18 20:11:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:11:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:11:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 20:11:04,752 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 20:11:05,590 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:11:05,590 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-04-18 20:11:05,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:11:05 BoogieIcfgContainer [2020-04-18 20:11:05,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:11:05,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:11:05,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:11:05,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:11:05,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:11:02" (1/3) ... [2020-04-18 20:11:05,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d63013f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:11:05, skipping insertion in model container [2020-04-18 20:11:05,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:11:04" (2/3) ... [2020-04-18 20:11:05,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d63013f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:11:05, skipping insertion in model container [2020-04-18 20:11:05,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:11:05" (3/3) ... [2020-04-18 20:11:05,605 INFO L109 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2020-04-18 20:11:05,616 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:11:05,617 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:11:05,631 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-04-18 20:11:05,632 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:11:05,663 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,663 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,664 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,664 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,664 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,665 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,665 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,665 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,665 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,665 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,666 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,666 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,666 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,666 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,666 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,667 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,667 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,667 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,668 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,668 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,668 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,668 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,668 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,669 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,669 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,669 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,669 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,670 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,670 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,670 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,671 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,671 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,671 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,671 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,672 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,672 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,672 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,672 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,673 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,673 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,673 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,673 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,674 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,674 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,674 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,675 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,675 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,675 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,675 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,675 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,676 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,676 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,676 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,677 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,677 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,677 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,677 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,678 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,682 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,682 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,682 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,683 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,683 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,683 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,683 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,684 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,684 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,684 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,691 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,691 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,692 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,692 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,692 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,692 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,692 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,693 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,693 WARN L315 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,693 WARN L315 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:05,728 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-04-18 20:11:05,750 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:11:05,750 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:11:05,750 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:11:05,751 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:11:05,751 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:11:05,751 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:11:05,751 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:11:05,752 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:11:05,769 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 150 places, 154 transitions, 330 flow [2020-04-18 20:11:06,128 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7540 states. [2020-04-18 20:11:06,131 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states. [2020-04-18 20:11:06,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:11:06,141 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:11:06,143 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] [2020-04-18 20:11:06,143 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:11:06,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:06,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1462968341, now seen corresponding path program 1 times [2020-04-18 20:11:06,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:11:06,162 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1209182438] [2020-04-18 20:11:06,181 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:06,191 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:11:06,194 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:11:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:11:06,197 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:11:06,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:06,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1462968341, now seen corresponding path program 2 times [2020-04-18 20:11:06,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:06,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722612568] [2020-04-18 20:11:06,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:11:06,749 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 20:11:06,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722612568] [2020-04-18 20:11:06,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:11:06,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:11:06,753 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:11:06,758 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:06,781 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:11:06,781 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:11:06,838 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:11:06,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:11:06,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:11:06,844 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 6 states. [2020-04-18 20:11:06,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:06,964 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:11:06,964 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:11:06,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:11:06,965 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1209182438] [2020-04-18 20:11:06,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:11:06,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:11:06,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1209182438] [2020-04-18 20:11:06,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:11:06,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:11:06,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:11:06,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:11:06,974 INFO L87 Difference]: Start difference. First operand 7540 states. Second operand 6 states. [2020-04-18 20:11:07,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:07,374 INFO L93 Difference]: Finished difference Result 7543 states and 20986 transitions. [2020-04-18 20:11:07,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 20:11:07,427 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-04-18 20:11:07,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:11:07,512 INFO L225 Difference]: With dead ends: 7543 [2020-04-18 20:11:07,512 INFO L226 Difference]: Without dead ends: 6154 [2020-04-18 20:11:07,516 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:11:07,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2020-04-18 20:11:07,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 6153. [2020-04-18 20:11:07,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6153 states. [2020-04-18 20:11:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6153 states to 6153 states and 17048 transitions. [2020-04-18 20:11:07,944 INFO L78 Accepts]: Start accepts. Automaton has 6153 states and 17048 transitions. Word has length 32 [2020-04-18 20:11:07,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:11:07,945 INFO L479 AbstractCegarLoop]: Abstraction has 6153 states and 17048 transitions. [2020-04-18 20:11:07,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:11:07,946 INFO L276 IsEmpty]: Start isEmpty. Operand 6153 states and 17048 transitions. [2020-04-18 20:11:07,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:11:07,947 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:11:07,947 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 20:11:07,947 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:11:07,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:07,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1084695127, now seen corresponding path program 1 times [2020-04-18 20:11:07,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:11:07,949 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1749645031] [2020-04-18 20:11:07,950 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:07,950 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 38 transitions. [2020-04-18 20:11:07,952 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-04-18 20:11:07,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:11:07,956 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:11:07,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:07,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1084695127, now seen corresponding path program 2 times [2020-04-18 20:11:07,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:07,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932024272] [2020-04-18 20:11:07,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:11:08,144 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 20:11:08,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932024272] [2020-04-18 20:11:08,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:11:08,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:11:08,145 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:11:08,151 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:08,156 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 38 transitions. [2020-04-18 20:11:08,157 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:11:08,204 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:11:08,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:11:08,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:11:08,205 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 6 states. [2020-04-18 20:11:08,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:08,330 INFO L93 Difference]: Finished difference Result 39 states and 38 transitions. [2020-04-18 20:11:08,330 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 38 transitions. [2020-04-18 20:11:08,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:11:08,331 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1749645031] [2020-04-18 20:11:08,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:11:08,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:11:08,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1749645031] [2020-04-18 20:11:08,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:11:08,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:11:08,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:11:08,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 20:11:08,333 INFO L87 Difference]: Start difference. First operand 6153 states and 17048 transitions. Second operand 6 states. [2020-04-18 20:11:08,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:08,724 INFO L93 Difference]: Finished difference Result 6155 states and 17050 transitions. [2020-04-18 20:11:08,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:11:08,724 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-04-18 20:11:08,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:11:08,769 INFO L225 Difference]: With dead ends: 6155 [2020-04-18 20:11:08,769 INFO L226 Difference]: Without dead ends: 6155 [2020-04-18 20:11:08,771 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 20:11:08,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6155 states. [2020-04-18 20:11:08,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6155 to 6151. [2020-04-18 20:11:08,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6151 states. [2020-04-18 20:11:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6151 states to 6151 states and 17046 transitions. [2020-04-18 20:11:08,977 INFO L78 Accepts]: Start accepts. Automaton has 6151 states and 17046 transitions. Word has length 38 [2020-04-18 20:11:08,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:11:08,978 INFO L479 AbstractCegarLoop]: Abstraction has 6151 states and 17046 transitions. [2020-04-18 20:11:08,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:11:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 6151 states and 17046 transitions. [2020-04-18 20:11:08,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-04-18 20:11:08,981 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:11:08,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:11:08,981 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:11:08,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:08,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1692348281, now seen corresponding path program 1 times [2020-04-18 20:11:08,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:11:08,982 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [670648887] [2020-04-18 20:11:08,983 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:08,984 INFO L259 McrAutomatonBuilder]: Finished intersection with 57 states and 56 transitions. [2020-04-18 20:11:08,984 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2020-04-18 20:11:08,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-04-18 20:11:08,985 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:11:08,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:08,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1692348281, now seen corresponding path program 2 times [2020-04-18 20:11:08,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:08,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535119075] [2020-04-18 20:11:08,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:11:09,185 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 20:11:09,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535119075] [2020-04-18 20:11:09,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:11:09,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:11:09,186 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:11:09,199 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:09,211 INFO L259 McrAutomatonBuilder]: Finished intersection with 57 states and 56 transitions. [2020-04-18 20:11:09,211 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:11:09,266 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:11:09,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:11:09,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:11:09,267 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 6 states. [2020-04-18 20:11:09,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:09,409 INFO L93 Difference]: Finished difference Result 57 states and 56 transitions. [2020-04-18 20:11:09,409 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 56 transitions. [2020-04-18 20:11:09,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:11:09,410 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [670648887] [2020-04-18 20:11:09,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:11:09,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:11:09,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [670648887] [2020-04-18 20:11:09,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:11:09,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:11:09,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:11:09,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 20:11:09,412 INFO L87 Difference]: Start difference. First operand 6151 states and 17046 transitions. Second operand 6 states. [2020-04-18 20:11:10,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:10,080 INFO L93 Difference]: Finished difference Result 9138 states and 25276 transitions. [2020-04-18 20:11:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 20:11:10,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-04-18 20:11:10,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:11:10,150 INFO L225 Difference]: With dead ends: 9138 [2020-04-18 20:11:10,150 INFO L226 Difference]: Without dead ends: 9138 [2020-04-18 20:11:10,151 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-04-18 20:11:10,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9138 states. [2020-04-18 20:11:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9138 to 6933. [2020-04-18 20:11:10,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6933 states. [2020-04-18 20:11:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 19228 transitions. [2020-04-18 20:11:10,430 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 19228 transitions. Word has length 56 [2020-04-18 20:11:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:11:10,431 INFO L479 AbstractCegarLoop]: Abstraction has 6933 states and 19228 transitions. [2020-04-18 20:11:10,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:11:10,431 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 19228 transitions. [2020-04-18 20:11:10,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-04-18 20:11:10,436 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:11:10,436 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:11:10,436 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:11:10,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:10,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1330747333, now seen corresponding path program 1 times [2020-04-18 20:11:10,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:11:10,437 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2029700088] [2020-04-18 20:11:10,438 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:10,439 INFO L259 McrAutomatonBuilder]: Finished intersection with 63 states and 62 transitions. [2020-04-18 20:11:10,441 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2020-04-18 20:11:10,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-04-18 20:11:10,441 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:11:10,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:10,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1330747333, now seen corresponding path program 2 times [2020-04-18 20:11:10,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:10,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887109250] [2020-04-18 20:11:10,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:11:10,639 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 20:11:10,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887109250] [2020-04-18 20:11:10,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:11:10,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:11:10,641 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:11:10,657 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:10,739 INFO L259 McrAutomatonBuilder]: Finished intersection with 63 states and 62 transitions. [2020-04-18 20:11:10,740 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:11:10,789 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:11:10,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:11:10,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:11:10,790 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 6 states. [2020-04-18 20:11:10,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:10,932 INFO L93 Difference]: Finished difference Result 63 states and 62 transitions. [2020-04-18 20:11:10,933 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 62 transitions. [2020-04-18 20:11:10,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:11:10,933 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2029700088] [2020-04-18 20:11:10,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:11:10,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:11:10,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2029700088] [2020-04-18 20:11:10,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:11:10,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:11:10,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:11:10,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 20:11:10,935 INFO L87 Difference]: Start difference. First operand 6933 states and 19228 transitions. Second operand 6 states. [2020-04-18 20:11:11,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:11,393 INFO L93 Difference]: Finished difference Result 9920 states and 27311 transitions. [2020-04-18 20:11:11,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 20:11:11,394 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-04-18 20:11:11,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:11:11,421 INFO L225 Difference]: With dead ends: 9920 [2020-04-18 20:11:11,422 INFO L226 Difference]: Without dead ends: 8303 [2020-04-18 20:11:11,422 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:11:11,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8303 states. [2020-04-18 20:11:11,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8303 to 8009. [2020-04-18 20:11:11,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8009 states. [2020-04-18 20:11:11,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8009 states to 8009 states and 22246 transitions. [2020-04-18 20:11:11,678 INFO L78 Accepts]: Start accepts. Automaton has 8009 states and 22246 transitions. Word has length 62 [2020-04-18 20:11:11,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:11:11,679 INFO L479 AbstractCegarLoop]: Abstraction has 8009 states and 22246 transitions. [2020-04-18 20:11:11,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:11:11,679 INFO L276 IsEmpty]: Start isEmpty. Operand 8009 states and 22246 transitions. [2020-04-18 20:11:11,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-04-18 20:11:11,688 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:11:11,688 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, 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 20:11:11,689 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:11:11,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:11,689 INFO L82 PathProgramCache]: Analyzing trace with hash -2008182927, now seen corresponding path program 1 times [2020-04-18 20:11:11,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:11:11,690 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [316890315] [2020-04-18 20:11:11,692 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:11,700 INFO L259 McrAutomatonBuilder]: Finished intersection with 197 states and 322 transitions. [2020-04-18 20:11:11,701 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2020-04-18 20:11:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-04-18 20:11:11,702 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:11:11,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:11,702 INFO L82 PathProgramCache]: Analyzing trace with hash -2092706479, now seen corresponding path program 2 times [2020-04-18 20:11:11,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:11,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561816910] [2020-04-18 20:11:11,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:11:11,820 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 20:11:11,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561816910] [2020-04-18 20:11:11,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:11:11,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:11:11,821 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:11:11,840 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:11,947 INFO L259 McrAutomatonBuilder]: Finished intersection with 78 states and 84 transitions. [2020-04-18 20:11:11,947 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:11:11,982 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:11:11,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:11:11,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:11:11,982 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 5 states. [2020-04-18 20:11:12,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:12,048 INFO L93 Difference]: Finished difference Result 197 states and 322 transitions. [2020-04-18 20:11:12,048 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 322 transitions. [2020-04-18 20:11:12,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:11:12,049 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [316890315] [2020-04-18 20:11:12,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:11:12,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:11:12,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [316890315] [2020-04-18 20:11:12,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:11:12,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:11:12,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:11:12,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:11:12,051 INFO L87 Difference]: Start difference. First operand 8009 states and 22246 transitions. Second operand 5 states. [2020-04-18 20:11:12,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:12,088 INFO L93 Difference]: Finished difference Result 2795 states and 7501 transitions. [2020-04-18 20:11:12,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 20:11:12,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2020-04-18 20:11:12,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:11:12,095 INFO L225 Difference]: With dead ends: 2795 [2020-04-18 20:11:12,096 INFO L226 Difference]: Without dead ends: 2795 [2020-04-18 20:11:12,096 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:11:12,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2020-04-18 20:11:12,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2795. [2020-04-18 20:11:12,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2795 states. [2020-04-18 20:11:12,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 7501 transitions. [2020-04-18 20:11:12,173 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 7501 transitions. Word has length 70 [2020-04-18 20:11:12,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:11:12,174 INFO L479 AbstractCegarLoop]: Abstraction has 2795 states and 7501 transitions. [2020-04-18 20:11:12,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:11:12,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 7501 transitions. [2020-04-18 20:11:12,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 20:11:12,190 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:11:12,190 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:11:12,191 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:11:12,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:12,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1769830359, now seen corresponding path program 1 times [2020-04-18 20:11:12,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:11:12,195 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [700622392] [2020-04-18 20:11:12,200 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:12,278 INFO L259 McrAutomatonBuilder]: Finished intersection with 2717 states and 7357 transitions. [2020-04-18 20:11:12,295 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states. [2020-04-18 20:11:12,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 20:11:12,305 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:11:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:12,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1769830359, now seen corresponding path program 2 times [2020-04-18 20:11:12,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:12,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098688142] [2020-04-18 20:11:12,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:11:13,365 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2020-04-18 20:11:13,584 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 20:11:13,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098688142] [2020-04-18 20:11:13,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:11:13,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-18 20:11:13,586 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:11:13,613 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:14,868 INFO L259 McrAutomatonBuilder]: Finished intersection with 754 states and 1785 transitions. [2020-04-18 20:11:14,868 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:11:15,241 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2020-04-18 20:11:15,288 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,291 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,300 INFO L539 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 20:11:15,314 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:15,316 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2020-04-18 20:11:15,316 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:68, output treesize:25 [2020-04-18 20:11:15,368 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,372 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,376 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,380 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,385 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,390 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,464 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:15,468 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,472 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,475 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,478 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,482 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,485 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:15,517 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:15,518 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:11:15,518 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:281, output treesize:35 [2020-04-18 20:11:16,237 WARN L192 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-04-18 20:11:16,248 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:16,252 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:16,261 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:16,265 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:16,269 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:16,338 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:16,342 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:16,351 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:16,354 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:16,356 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:16,359 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:16,377 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:16,377 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 5 xjuncts. [2020-04-18 20:11:16,377 INFO L239 ElimStorePlain]: Needed 11 recursive calls to eliminate 2 variables, input treesize:224, output treesize:19 [2020-04-18 20:11:16,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2020-04-18 20:11:17,904 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 65 times. [2020-04-18 20:11:17,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-04-18 20:11:17,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2020-04-18 20:11:17,905 INFO L87 Difference]: Start difference. First operand 2717 states. Second operand 28 states. [2020-04-18 20:11:19,435 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2020-04-18 20:11:19,874 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2020-04-18 20:11:20,521 WARN L192 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2020-04-18 20:11:20,857 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-04-18 20:11:21,361 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2020-04-18 20:11:22,463 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-04-18 20:11:22,827 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2020-04-18 20:11:23,406 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2020-04-18 20:11:24,619 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 45 [2020-04-18 20:11:27,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:27,139 INFO L93 Difference]: Finished difference Result 4442 states and 12065 transitions. [2020-04-18 20:11:27,139 INFO L276 IsEmpty]: Start isEmpty. Operand 4442 states and 12065 transitions. [2020-04-18 20:11:27,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 20:11:27,158 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:11:27,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:27,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1494462625, now seen corresponding path program 3 times [2020-04-18 20:11:27,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:27,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132959658] [2020-04-18 20:11:27,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:11:28,432 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 20:11:28,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132959658] [2020-04-18 20:11:28,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:11:28,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 20:11:28,433 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:11:28,457 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:29,464 INFO L259 McrAutomatonBuilder]: Finished intersection with 564 states and 1231 transitions. [2020-04-18 20:11:29,465 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:11:30,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2020-04-18 20:11:30,316 INFO L539 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 20:11:30,319 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,321 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,336 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:30,336 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2020-04-18 20:11:30,337 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:68, output treesize:25 [2020-04-18 20:11:30,367 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,370 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,374 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,377 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,381 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,384 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,449 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:30,453 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,455 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,459 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,462 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,466 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,470 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,489 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:30,490 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:11:30,490 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:281, output treesize:35 [2020-04-18 20:11:30,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2020-04-18 20:11:30,782 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,785 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,789 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,792 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,797 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,807 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,884 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:30,887 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,891 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,895 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,900 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,903 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,906 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:30,931 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:30,931 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:11:30,932 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:286, output treesize:40 [2020-04-18 20:11:31,098 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,103 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,107 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,111 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,116 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,119 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,193 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:31,197 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,200 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,204 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,207 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,212 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,215 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:31,240 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:31,240 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:11:31,240 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:306, output treesize:60 [2020-04-18 20:11:31,945 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 47 times. [2020-04-18 20:11:31,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-04-18 20:11:31,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=512, Invalid=2794, Unknown=0, NotChecked=0, Total=3306 [2020-04-18 20:11:31,947 INFO L87 Difference]: Start difference. First operand 4442 states and 12065 transitions. Second operand 29 states. [2020-04-18 20:11:33,531 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2020-04-18 20:11:33,879 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-04-18 20:11:34,219 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-04-18 20:11:34,482 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2020-04-18 20:11:35,005 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 56 [2020-04-18 20:11:35,301 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2020-04-18 20:11:36,198 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 64 [2020-04-18 20:11:38,374 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2020-04-18 20:11:38,600 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-04-18 20:11:39,971 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2020-04-18 20:11:40,459 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 50 [2020-04-18 20:11:41,429 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2020-04-18 20:11:42,254 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 60 [2020-04-18 20:11:45,708 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-04-18 20:11:45,976 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-04-18 20:11:46,156 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-04-18 20:11:46,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:46,183 INFO L93 Difference]: Finished difference Result 9619 states and 25600 transitions. [2020-04-18 20:11:46,183 INFO L276 IsEmpty]: Start isEmpty. Operand 9619 states and 25600 transitions. [2020-04-18 20:11:46,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 20:11:46,201 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 20:11:46,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:46,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1603586325, now seen corresponding path program 4 times [2020-04-18 20:11:46,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:46,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947366388] [2020-04-18 20:11:46,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:11:47,122 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 20:11:47,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947366388] [2020-04-18 20:11:47,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:11:47,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-18 20:11:47,123 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:11:47,153 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:48,111 INFO L259 McrAutomatonBuilder]: Finished intersection with 972 states and 2412 transitions. [2020-04-18 20:11:48,111 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:11:48,640 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:48,643 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:48,647 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:48,651 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:48,700 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:48,703 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:48,705 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:48,709 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:48,711 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:48,724 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:48,725 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-18 20:11:48,725 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:178, output treesize:14 [2020-04-18 20:11:49,090 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,094 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,098 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,102 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,147 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:49,150 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,153 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,156 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,160 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,174 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:49,174 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-18 20:11:49,175 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:178, output treesize:14 [2020-04-18 20:11:49,564 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,572 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,576 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,579 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,637 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:49,640 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,643 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,646 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,649 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,661 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:49,662 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-18 20:11:49,662 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:178, output treesize:14 [2020-04-18 20:11:49,709 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,714 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,719 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,723 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,782 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:49,786 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,790 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,794 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,796 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:11:49,836 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:11:49,836 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-18 20:11:49,837 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:187, output treesize:59 [2020-04-18 20:11:51,659 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 46 times. [2020-04-18 20:11:51,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-04-18 20:11:51,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1166, Invalid=7764, Unknown=0, NotChecked=0, Total=8930 [2020-04-18 20:11:51,663 INFO L87 Difference]: Start difference. First operand 9619 states and 25600 transitions. Second operand 30 states. [2020-04-18 20:11:52,900 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2020-04-18 20:11:53,137 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2020-04-18 20:11:53,373 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-04-18 20:11:53,835 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-04-18 20:11:54,194 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-04-18 20:11:54,511 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2020-04-18 20:11:54,997 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 54 [2020-04-18 20:11:55,358 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2020-04-18 20:11:55,694 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-04-18 20:11:56,230 WARN L192 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 70 [2020-04-18 20:11:56,574 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-04-18 20:11:56,881 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2020-04-18 20:11:57,183 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2020-04-18 20:11:57,755 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 38 [2020-04-18 20:11:58,376 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-04-18 20:11:58,649 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-04-18 20:11:59,517 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2020-04-18 20:12:00,056 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2020-04-18 20:12:00,542 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2020-04-18 20:12:00,894 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2020-04-18 20:12:01,507 WARN L192 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 75 [2020-04-18 20:12:01,937 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 54 [2020-04-18 20:12:02,529 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2020-04-18 20:12:03,316 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-04-18 20:12:03,695 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2020-04-18 20:12:04,258 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-04-18 20:12:04,603 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2020-04-18 20:12:10,927 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 42 [2020-04-18 20:12:11,219 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 45 [2020-04-18 20:12:11,401 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 32 [2020-04-18 20:12:11,596 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 42 [2020-04-18 20:12:11,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:12:11,642 INFO L93 Difference]: Finished difference Result 14949 states and 39571 transitions. [2020-04-18 20:12:11,642 INFO L276 IsEmpty]: Start isEmpty. Operand 14949 states and 39571 transitions. [2020-04-18 20:12:11,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 20:12:11,663 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 20:12:11,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:12:11,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1281194391, now seen corresponding path program 5 times [2020-04-18 20:12:11,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:12:11,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602188111] [2020-04-18 20:12:11,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:12:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:12:12,798 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 20:12:12,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602188111] [2020-04-18 20:12:12,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:12:12,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-04-18 20:12:12,799 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:12:12,820 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:12:13,720 INFO L259 McrAutomatonBuilder]: Finished intersection with 816 states and 1957 transitions. [2020-04-18 20:12:13,720 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:12:15,263 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,267 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,272 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,277 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,280 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,286 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,290 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,377 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:12:15,380 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,383 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,386 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,389 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,392 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,396 INFO L539 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,399 INFO L539 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,425 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:12:15,425 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 7 xjuncts. [2020-04-18 20:12:15,426 INFO L239 ElimStorePlain]: Needed 15 recursive calls to eliminate 2 variables, input treesize:331, output treesize:44 [2020-04-18 20:12:15,762 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,765 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,769 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,772 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,777 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,780 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,843 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:12:15,847 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,850 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,853 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,856 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,859 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,861 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:15,882 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:12:15,883 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:12:15,883 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:269, output treesize:23 [2020-04-18 20:12:16,251 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,254 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,259 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,263 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,267 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,270 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,337 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:12:16,341 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,344 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,348 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,353 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,357 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,360 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,383 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:12:16,383 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:12:16,383 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:269, output treesize:23 [2020-04-18 20:12:16,934 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,938 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,942 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,947 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,950 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:16,955 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:17,038 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:12:17,041 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:17,051 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:17,055 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:17,060 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:17,064 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:17,068 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:12:17,146 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:12:17,146 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:12:17,146 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:282, output treesize:90 [2020-04-18 20:12:20,059 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 54 times. [2020-04-18 20:12:20,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-04-18 20:12:20,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2571, Invalid=20381, Unknown=0, NotChecked=0, Total=22952 [2020-04-18 20:12:20,067 INFO L87 Difference]: Start difference. First operand 14949 states and 39571 transitions. Second operand 34 states. [2020-04-18 20:12:21,331 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2020-04-18 20:12:21,909 WARN L192 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 88 [2020-04-18 20:12:22,213 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-04-18 20:12:22,695 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-04-18 20:12:23,320 WARN L192 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2020-04-18 20:12:23,710 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 52 [2020-04-18 20:12:24,374 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 65 [2020-04-18 20:12:24,792 WARN L192 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 68 [2020-04-18 20:12:25,240 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 73 [2020-04-18 20:12:25,665 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2020-04-18 20:12:26,519 WARN L192 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 89 [2020-04-18 20:12:27,093 WARN L192 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-04-18 20:12:27,712 WARN L192 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 62 [2020-04-18 20:12:28,275 WARN L192 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 77 [2020-04-18 20:12:28,736 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 52 [2020-04-18 20:12:29,500 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 56 [2020-04-18 20:12:30,195 WARN L192 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 83 [2020-04-18 20:12:31,235 WARN L192 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 48 [2020-04-18 20:12:32,499 WARN L192 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 64 [2020-04-18 20:12:33,027 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-04-18 20:12:33,628 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 56 [2020-04-18 20:12:35,110 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 47 [2020-04-18 20:12:35,917 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2020-04-18 20:12:36,306 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-04-18 20:12:36,721 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2020-04-18 20:12:37,211 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 54 [2020-04-18 20:12:38,035 WARN L192 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 62 [2020-04-18 20:12:38,385 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 34 [2020-04-18 20:12:38,784 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 53 [2020-04-18 20:12:39,215 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-04-18 20:12:39,855 WARN L192 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 72 [2020-04-18 20:12:40,211 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 45 [2020-04-18 20:12:40,692 WARN L192 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2020-04-18 20:12:41,283 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 41 [2020-04-18 20:12:41,853 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 70 [2020-04-18 20:12:42,329 WARN L192 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-04-18 20:12:42,779 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 58 [2020-04-18 20:12:43,584 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 69 [2020-04-18 20:12:44,081 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 52 [2020-04-18 20:12:44,583 WARN L192 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 64 [2020-04-18 20:12:47,730 WARN L192 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 78 [2020-04-18 20:12:53,902 WARN L192 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 61 [2020-04-18 20:12:54,313 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 63 [2020-04-18 20:12:54,926 WARN L192 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 63 [2020-04-18 20:12:55,471 WARN L192 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 83 [2020-04-18 20:12:56,262 WARN L192 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 70 [2020-04-18 20:12:58,997 WARN L192 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-04-18 20:12:59,277 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-04-18 20:12:59,710 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2020-04-18 20:13:00,899 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 55 [2020-04-18 20:13:01,257 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 58 [2020-04-18 20:13:01,525 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 42 [2020-04-18 20:13:01,807 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 55 [2020-04-18 20:13:01,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:13:01,849 INFO L93 Difference]: Finished difference Result 22773 states and 58204 transitions. [2020-04-18 20:13:01,850 INFO L276 IsEmpty]: Start isEmpty. Operand 22773 states and 58204 transitions. [2020-04-18 20:13:01,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 20:13:01,876 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 20:13:01,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:13:01,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1701464623, now seen corresponding path program 6 times [2020-04-18 20:13:01,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:13:01,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763442207] [2020-04-18 20:13:01,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:13:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:13:02,648 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 20:13:02,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763442207] [2020-04-18 20:13:02,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:13:02,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-04-18 20:13:02,649 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:13:02,676 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:13:03,640 INFO L259 McrAutomatonBuilder]: Finished intersection with 1051 states and 2633 transitions. [2020-04-18 20:13:03,640 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:13:04,079 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:04,083 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:04,088 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:04,091 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:04,136 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:04,140 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:04,144 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:04,147 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:04,150 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:04,162 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:04,163 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-18 20:13:04,163 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:180, output treesize:16 [2020-04-18 20:13:04,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2020-04-18 20:13:04,981 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:04,985 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:04,988 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:04,990 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,033 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:05,037 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,040 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,044 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,047 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,061 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:05,062 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-18 20:13:05,062 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:178, output treesize:14 [2020-04-18 20:13:05,075 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,078 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,081 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,086 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,133 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:05,137 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,139 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,142 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,145 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,159 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:05,159 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-18 20:13:05,160 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:180, output treesize:16 [2020-04-18 20:13:05,407 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,412 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,416 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,420 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,508 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:05,512 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,516 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,520 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,523 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:05,600 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:05,602 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2020-04-18 20:13:05,602 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:222, output treesize:62 [2020-04-18 20:13:06,315 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:06,318 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:06,323 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:06,327 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:06,372 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:06,375 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:06,379 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:06,382 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:06,385 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:06,398 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:06,399 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-04-18 20:13:06,399 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:178, output treesize:14 [2020-04-18 20:13:06,903 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:06,908 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:06,914 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:06,917 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:07,004 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:07,008 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:07,012 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:07,015 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:07,019 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:07,084 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:07,085 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2020-04-18 20:13:07,085 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:222, output treesize:62 [2020-04-18 20:13:09,801 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-04-18 20:13:09,816 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:09,824 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:09,832 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:09,839 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:10,039 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-04-18 20:13:10,040 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:10,047 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:10,055 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:10,062 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:10,069 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:10,199 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-04-18 20:13:10,199 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:10,200 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2020-04-18 20:13:10,200 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:238, output treesize:78 [2020-04-18 20:13:12,029 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,034 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,037 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,042 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,145 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-04-18 20:13:12,145 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:12,150 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,154 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,159 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,162 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,311 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-04-18 20:13:12,312 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:12,313 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2020-04-18 20:13:12,314 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:238, output treesize:78 [2020-04-18 20:13:12,328 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,333 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,339 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,345 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,521 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-04-18 20:13:12,522 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:12,529 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,535 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,542 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,548 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:12,672 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-04-18 20:13:12,672 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:12,673 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2020-04-18 20:13:12,673 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:238, output treesize:78 [2020-04-18 20:13:13,349 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,354 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,359 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,362 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,464 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-04-18 20:13:13,465 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:13,469 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,472 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,478 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,482 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,557 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:13,558 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2020-04-18 20:13:13,559 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:238, output treesize:78 [2020-04-18 20:13:13,810 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,815 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,820 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,826 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,928 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-04-18 20:13:13,929 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:13,938 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,942 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,947 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:13,950 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:14,028 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:14,029 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2020-04-18 20:13:14,029 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:238, output treesize:78 [2020-04-18 20:13:14,810 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:14,823 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:14,827 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:14,832 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:14,936 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-04-18 20:13:14,936 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:14,942 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:14,946 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:14,959 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:14,962 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:15,047 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:15,048 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2020-04-18 20:13:15,048 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:238, output treesize:78 [2020-04-18 20:13:17,621 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-04-18 20:13:17,644 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:17,648 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:17,674 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:17,678 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:17,786 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-04-18 20:13:17,787 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:17,798 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:17,802 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:17,807 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:17,811 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:17,890 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:17,891 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2020-04-18 20:13:17,891 INFO L239 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:230, output treesize:102 [2020-04-18 20:13:17,893 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 95 times. [2020-04-18 20:13:17,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-04-18 20:13:17,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6562, Invalid=48428, Unknown=0, NotChecked=0, Total=54990 [2020-04-18 20:13:17,902 INFO L87 Difference]: Start difference. First operand 22773 states and 58204 transitions. Second operand 41 states. [2020-04-18 20:13:19,512 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-04-18 20:13:20,297 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 49 [2020-04-18 20:13:20,895 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-04-18 20:13:21,477 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 48 [2020-04-18 20:13:21,883 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 20:13:22,508 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-04-18 20:13:25,487 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2020-04-18 20:13:26,751 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 42 [2020-04-18 20:13:27,133 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 48 [2020-04-18 20:13:27,611 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-04-18 20:13:28,428 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-04-18 20:13:29,336 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 46 [2020-04-18 20:13:32,674 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-04-18 20:13:33,064 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-04-18 20:13:33,489 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-04-18 20:13:33,766 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-04-18 20:13:34,075 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-04-18 20:13:34,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:13:34,130 INFO L93 Difference]: Finished difference Result 24019 states and 60928 transitions. [2020-04-18 20:13:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 24019 states and 60928 transitions. [2020-04-18 20:13:34,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-04-18 20:13:34,150 INFO L105 Mcr]: ---- MCR iteration 5 ---- [2020-04-18 20:13:34,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:13:34,150 INFO L82 PathProgramCache]: Analyzing trace with hash 748795155, now seen corresponding path program 7 times [2020-04-18 20:13:34,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:13:34,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417210272] [2020-04-18 20:13:34,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:13:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:13:35,325 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 20:13:35,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417210272] [2020-04-18 20:13:35,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:13:35,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-04-18 20:13:35,326 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:13:35,349 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:13:36,264 INFO L259 McrAutomatonBuilder]: Finished intersection with 751 states and 1761 transitions. [2020-04-18 20:13:36,265 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:13:39,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2020-04-18 20:13:39,797 INFO L539 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 20:13:39,801 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:39,804 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:39,816 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:39,816 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2020-04-18 20:13:39,816 INFO L239 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:68, output treesize:25 [2020-04-18 20:13:40,079 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,085 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,090 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,098 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,103 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,107 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,110 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,201 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:40,204 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,207 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,212 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,216 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,219 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,222 INFO L539 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,227 INFO L539 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,251 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:40,252 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 7 xjuncts. [2020-04-18 20:13:40,252 INFO L239 ElimStorePlain]: Needed 15 recursive calls to eliminate 2 variables, input treesize:331, output treesize:44 [2020-04-18 20:13:40,490 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,493 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,498 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,503 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,508 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,512 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,514 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,655 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-04-18 20:13:40,656 INFO L619 ElimStorePlain]: treesize reduction 40, result has 78.8 percent of original size [2020-04-18 20:13:40,664 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,667 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,669 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,678 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,681 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,684 INFO L539 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,704 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:40,704 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:13:40,704 INFO L239 ElimStorePlain]: Needed 14 recursive calls to eliminate 2 variables, input treesize:329, output treesize:23 [2020-04-18 20:13:40,936 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,941 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,945 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,948 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,952 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:40,955 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,024 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:41,029 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,032 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,034 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,037 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,041 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,043 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,064 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:41,065 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:13:41,065 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:269, output treesize:23 [2020-04-18 20:13:41,083 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,087 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,091 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,095 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,099 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,103 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,167 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:41,171 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,174 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,177 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,181 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,184 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,186 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,207 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:41,208 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:13:41,208 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:224, output treesize:26 [2020-04-18 20:13:41,727 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,730 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,735 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,740 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,746 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,749 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,833 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:41,842 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,846 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,850 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,855 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,859 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,866 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:41,930 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:41,934 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:13:41,934 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:317, output treesize:77 [2020-04-18 20:13:42,455 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,460 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,464 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,468 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,478 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,482 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,572 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:42,575 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,580 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,583 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,587 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,591 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,595 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,666 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:42,667 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:13:42,667 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:331, output treesize:91 [2020-04-18 20:13:42,913 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,918 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,923 INFO L539 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,927 INFO L539 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,932 INFO L539 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:42,936 INFO L539 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:43,050 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-04-18 20:13:43,051 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:43,062 INFO L539 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:43,066 INFO L539 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:43,070 INFO L539 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:43,074 INFO L539 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:43,078 INFO L539 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:43,082 INFO L539 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-04-18 20:13:43,142 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:13:43,143 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2020-04-18 20:13:43,143 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:331, output treesize:91 [2020-04-18 20:13:45,722 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 58 times. [2020-04-18 20:13:45,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-04-18 20:13:45,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7851, Invalid=65861, Unknown=0, NotChecked=0, Total=73712 [2020-04-18 20:13:45,728 INFO L87 Difference]: Start difference. First operand 24019 states and 60928 transitions. Second operand 35 states. [2020-04-18 20:13:46,925 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-04-18 20:13:47,335 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-04-18 20:13:47,912 WARN L192 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2020-04-18 20:13:49,191 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 75 [2020-04-18 20:13:49,746 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 52 [2020-04-18 20:13:50,569 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 73 [2020-04-18 20:13:50,982 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2020-04-18 20:13:51,461 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 56 [2020-04-18 20:13:51,986 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 61 [2020-04-18 20:13:52,549 WARN L192 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 79 [2020-04-18 20:13:53,410 WARN L192 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 76 [2020-04-18 20:13:53,987 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 68 [2020-04-18 20:13:54,660 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 57 [2020-04-18 20:13:55,287 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-04-18 20:13:56,286 WARN L192 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 65 [2020-04-18 20:13:57,374 WARN L192 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 61 [2020-04-18 20:13:57,936 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 60 [2020-04-18 20:13:59,355 WARN L192 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 84 [2020-04-18 20:14:01,818 WARN L192 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 58 [2020-04-18 20:14:02,636 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2020-04-18 20:14:03,321 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 42 [2020-04-18 20:14:04,164 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 60 [2020-04-18 20:14:06,336 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2020-04-18 20:14:07,196 WARN L192 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 68 [2020-04-18 20:14:07,577 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 38 [2020-04-18 20:14:08,836 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 68 [2020-04-18 20:14:11,647 WARN L192 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 80 [2020-04-18 20:14:15,113 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 66 [2020-04-18 20:14:16,330 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 46 [2020-04-18 20:14:16,902 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 62 [2020-04-18 20:14:22,192 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-04-18 20:14:22,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:14:22,670 INFO L93 Difference]: Finished difference Result 27454 states and 69369 transitions. [2020-04-18 20:14:22,670 INFO L276 IsEmpty]: Start isEmpty. Operand 27454 states and 69369 transitions. [2020-04-18 20:14:22,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:14:22,701 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [700622392] [2020-04-18 20:14:22,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:14:22,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-04-18 20:14:22,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [700622392] [2020-04-18 20:14:22,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 123 states [2020-04-18 20:14:22,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:14:22,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2020-04-18 20:14:22,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9669, Invalid=83051, Unknown=0, NotChecked=0, Total=92720 [2020-04-18 20:14:22,707 INFO L87 Difference]: Start difference. First operand 2795 states and 7501 transitions. Second operand 123 states. [2020-04-18 20:14:26,071 WARN L192 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 74 [2020-04-18 20:14:27,485 WARN L192 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 79 [2020-04-18 20:14:28,856 WARN L192 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 54 [2020-04-18 20:14:29,640 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 34 [2020-04-18 20:14:30,778 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 38 [2020-04-18 20:14:31,348 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 60 [2020-04-18 20:14:32,006 WARN L192 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 38 [2020-04-18 20:14:32,965 WARN L192 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 48 [2020-04-18 20:14:33,891 WARN L192 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 61 [2020-04-18 20:14:34,670 WARN L192 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 49 [2020-04-18 20:14:35,504 WARN L192 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 42 [2020-04-18 20:14:36,387 WARN L192 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 70 [2020-04-18 20:14:37,505 WARN L192 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 64 [2020-04-18 20:14:38,556 WARN L192 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 47 [2020-04-18 20:14:40,036 WARN L192 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 51 [2020-04-18 20:14:40,937 WARN L192 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 65 [2020-04-18 20:14:41,866 WARN L192 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 55 [2020-04-18 20:14:42,833 WARN L192 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 54 [2020-04-18 20:14:43,796 WARN L192 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 46 [2020-04-18 20:14:44,675 WARN L192 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 75 [2020-04-18 20:14:45,811 WARN L192 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 69 [2020-04-18 20:14:46,711 WARN L192 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 52 [2020-04-18 20:14:47,851 WARN L192 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 61 [2020-04-18 20:14:49,937 WARN L192 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 56 [2020-04-18 20:14:51,993 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 43 [2020-04-18 20:14:52,929 WARN L192 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 58 [2020-04-18 20:14:54,123 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 45 [2020-04-18 20:14:55,246 WARN L192 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 57 [2020-04-18 20:14:55,658 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 34 [2020-04-18 20:14:56,597 WARN L192 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 52 [2020-04-18 20:14:58,946 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 51 [2020-04-18 20:14:59,668 WARN L192 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 63 [2020-04-18 20:15:00,406 WARN L192 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 61 [2020-04-18 20:15:01,110 WARN L192 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 73 [2020-04-18 20:15:02,027 WARN L192 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 51 [2020-04-18 20:15:02,864 WARN L192 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 64 [2020-04-18 20:15:03,795 WARN L192 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 66 [2020-04-18 20:15:04,726 WARN L192 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 56 [2020-04-18 20:15:05,739 WARN L192 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 54 [2020-04-18 20:15:06,761 WARN L192 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 51 [2020-04-18 20:15:07,334 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 37 [2020-04-18 20:15:09,053 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 42 [2020-04-18 20:15:09,616 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-04-18 20:15:10,084 WARN L192 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 54 [2020-04-18 20:15:10,877 WARN L192 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 66 [2020-04-18 20:15:11,648 WARN L192 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 78 [2020-04-18 20:15:12,508 WARN L192 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 43 [2020-04-18 20:15:13,397 WARN L192 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 58 [2020-04-18 20:15:14,026 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 56 [2020-04-18 20:15:14,872 WARN L192 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 50 [2020-04-18 20:15:15,844 WARN L192 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 71 [2020-04-18 20:15:16,809 WARN L192 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 70 [2020-04-18 20:15:17,946 WARN L192 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 59 [2020-04-18 20:15:18,748 WARN L192 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 58 [2020-04-18 20:15:19,632 WARN L192 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 65 Received shutdown request... [2020-04-18 20:15:20,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-04-18 20:15:20,232 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 20:15:20,237 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 20:15:20,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:15:20 BasicIcfg [2020-04-18 20:15:20,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:15:20,239 INFO L168 Benchmark]: Toolchain (without parser) took 257294.33 ms. Allocated memory was 138.4 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 100.5 MB in the beginning and 737.8 MB in the end (delta: -637.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-04-18 20:15:20,239 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-18 20:15:20,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1562.49 ms. Allocated memory was 138.4 MB in the beginning and 237.5 MB in the end (delta: 99.1 MB). Free memory was 98.6 MB in the beginning and 171.1 MB in the end (delta: -72.5 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. [2020-04-18 20:15:20,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.01 ms. Allocated memory is still 237.5 MB. Free memory was 171.1 MB in the beginning and 168.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:15:20,240 INFO L168 Benchmark]: Boogie Preprocessor took 49.23 ms. Allocated memory is still 237.5 MB. Free memory was 168.1 MB in the beginning and 165.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:15:20,240 INFO L168 Benchmark]: RCFGBuilder took 909.17 ms. Allocated memory is still 237.5 MB. Free memory was 165.1 MB in the beginning and 117.6 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2020-04-18 20:15:20,241 INFO L168 Benchmark]: TraceAbstraction took 254641.27 ms. Allocated memory was 237.5 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 116.1 MB in the beginning and 737.8 MB in the end (delta: -621.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-04-18 20:15:20,245 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1562.49 ms. Allocated memory was 138.4 MB in the beginning and 237.5 MB in the end (delta: 99.1 MB). Free memory was 98.6 MB in the beginning and 171.1 MB in the end (delta: -72.5 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 102.01 ms. Allocated memory is still 237.5 MB. Free memory was 171.1 MB in the beginning and 168.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.23 ms. Allocated memory is still 237.5 MB. Free memory was 168.1 MB in the beginning and 165.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 909.17 ms. Allocated memory is still 237.5 MB. Free memory was 165.1 MB in the beginning and 117.6 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 254641.27 ms. Allocated memory was 237.5 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 116.1 MB in the beginning and 737.8 MB in the end (delta: -621.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was constructing difference of abstraction (2795states) and FLOYD_HOARE automaton (currently 75 states, 123 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 360 known predicates. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was constructing difference of abstraction (2795states) and FLOYD_HOARE automaton (currently 75 states, 123 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 360 known predicates. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was constructing difference of abstraction (2795states) and FLOYD_HOARE automaton (currently 75 states, 123 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 360 known predicates. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was constructing difference of abstraction (2795states) and FLOYD_HOARE automaton (currently 75 states, 123 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 360 known predicates. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was constructing difference of abstraction (2795states) and FLOYD_HOARE automaton (currently 75 states, 123 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 360 known predicates. - TimeoutResultAtElement [Line: 1682]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1682). Cancelled while BasicCegarLoop was constructing difference of abstraction (2795states) and FLOYD_HOARE automaton (currently 75 states, 123 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 360 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 254.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 59.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 1192 SDtfs, 4790 SDslu, 17605 SDs, 0 SdLazy, 9092 SolverSat, 878 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1701 GetRequests, 1123 SyntacticMatches, 170 SemanticMatches, 407 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79821 ImplicationChecksByTransitivity, 128.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8009occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 2504 StatesRemovedByMinimization, 4 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 could not prove your program: Timeout Completed graceful shutdown