/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-SemanticLbe-McrStrategy.epf -i ../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 11:44:07,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 11:44:07,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 11:44:07,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 11:44:07,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 11:44:07,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 11:44:07,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 11:44:07,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 11:44:07,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 11:44:07,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 11:44:07,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 11:44:07,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 11:44:07,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 11:44:07,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 11:44:07,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 11:44:07,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 11:44:07,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 11:44:07,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 11:44:07,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 11:44:07,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 11:44:07,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 11:44:07,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 11:44:07,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 11:44:07,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 11:44:07,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 11:44:07,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 11:44:07,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 11:44:07,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 11:44:07,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 11:44:07,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 11:44:07,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 11:44:07,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 11:44:07,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 11:44:07,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 11:44:07,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 11:44:07,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 11:44:07,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 11:44:07,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 11:44:07,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 11:44:07,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 11:44:07,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 11:44:07,610 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-SemanticLbe-McrStrategy.epf [2020-04-18 11:44:07,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 11:44:07,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 11:44:07,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 11:44:07,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 11:44:07,638 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 11:44:07,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 11:44:07,638 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 11:44:07,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 11:44:07,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 11:44:07,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 11:44:07,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 11:44:07,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 11:44:07,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 11:44:07,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 11:44:07,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 11:44:07,640 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 11:44:07,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 11:44:07,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 11:44:07,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 11:44:07,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 11:44:07,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 11:44:07,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:44:07,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 11:44:07,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 11:44:07,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 11:44:07,642 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 11:44:07,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 11:44:07,642 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 11:44:07,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 11:44:07,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 11:44:07,922 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 11:44:07,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 11:44:07,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 11:44:07,945 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 11:44:07,945 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 11:44:07,945 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-04-18 11:44:08,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b59e9059/1f2d22793a964375a0e7861542f72cbd/FLAGa300f50aa [2020-04-18 11:44:08,553 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 11:44:08,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-04-18 11:44:08,554 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-18 11:44:08,554 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-18 11:44:08,596 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b59e9059/1f2d22793a964375a0e7861542f72cbd/FLAGa300f50aa [2020-04-18 11:44:08,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b59e9059/1f2d22793a964375a0e7861542f72cbd [2020-04-18 11:44:08,890 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 11:44:08,913 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 11:44:08,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 11:44:08,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 11:44:08,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 11:44:08,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:44:08" (1/1) ... [2020-04-18 11:44:08,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6274999c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:08, skipping insertion in model container [2020-04-18 11:44:08,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:44:08" (1/1) ... [2020-04-18 11:44:08,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 11:44:08,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 11:44:09,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:44:09,225 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 11:44:09,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:44:09,262 INFO L208 MainTranslator]: Completed translation [2020-04-18 11:44:09,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09 WrapperNode [2020-04-18 11:44:09,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 11:44:09,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 11:44:09,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 11:44:09,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 11:44:09,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09" (1/1) ... [2020-04-18 11:44:09,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09" (1/1) ... [2020-04-18 11:44:09,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 11:44:09,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 11:44:09,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 11:44:09,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 11:44:09,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09" (1/1) ... [2020-04-18 11:44:09,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09" (1/1) ... [2020-04-18 11:44:09,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09" (1/1) ... [2020-04-18 11:44:09,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09" (1/1) ... [2020-04-18 11:44:09,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09" (1/1) ... [2020-04-18 11:44:09,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09" (1/1) ... [2020-04-18 11:44:09,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09" (1/1) ... [2020-04-18 11:44:09,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 11:44:09,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 11:44:09,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 11:44:09,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 11:44:09,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09" (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 11:44:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 11:44:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-04-18 11:44:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-04-18 11:44:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 11:44:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 11:44:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 11:44:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 11:44:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 11:44:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 11:44:09,417 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 11:44:09,792 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 11:44:09,793 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-04-18 11:44:09,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:44:09 BoogieIcfgContainer [2020-04-18 11:44:09,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 11:44:09,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 11:44:09,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 11:44:09,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 11:44:09,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:44:08" (1/3) ... [2020-04-18 11:44:09,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47182f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:44:09, skipping insertion in model container [2020-04-18 11:44:09,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:44:09" (2/3) ... [2020-04-18 11:44:09,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47182f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:44:09, skipping insertion in model container [2020-04-18 11:44:09,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:44:09" (3/3) ... [2020-04-18 11:44:09,807 INFO L109 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2020-04-18 11:44:09,817 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 11:44:09,817 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 11:44:09,824 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 11:44:09,826 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 11:44:09,860 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,860 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,860 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,861 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,861 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,861 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,862 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,862 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,862 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,862 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,863 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,863 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,863 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,863 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,864 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,864 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,864 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,864 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,865 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,865 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,865 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,865 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,866 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,866 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,866 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,866 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,867 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,867 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,867 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,867 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,868 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,868 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,868 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,868 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,869 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,869 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,869 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,869 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,869 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,870 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,870 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,870 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,870 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,871 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,871 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,875 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,875 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,876 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,876 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,876 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,876 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,876 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,883 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,884 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,884 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,884 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,884 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,885 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,885 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,888 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,888 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,889 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,889 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,889 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,889 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,890 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:44:09,924 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 11:44:09,941 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:44:09,941 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:44:09,941 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:44:09,942 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:44:09,942 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:44:09,942 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:44:09,942 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:44:09,942 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:44:09,961 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 77 transitions, 196 flow [2020-04-18 11:44:09,963 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2020-04-18 11:44:10,034 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2020-04-18 11:44:10,034 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-04-18 11:44:10,041 INFO L80 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 85 events. 5/85 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2020-04-18 11:44:10,046 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2020-04-18 11:44:10,086 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2020-04-18 11:44:10,087 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-04-18 11:44:10,088 INFO L80 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 85 events. 5/85 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2020-04-18 11:44:10,095 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1008 [2020-04-18 11:44:10,096 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 11:44:11,662 WARN L192 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-04-18 11:44:11,812 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1623 [2020-04-18 11:44:11,813 INFO L214 etLargeBlockEncoding]: Total number of compositions: 43 [2020-04-18 11:44:11,820 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 112 flow [2020-04-18 11:44:11,878 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 354 states. [2020-04-18 11:44:11,881 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-04-18 11:44:11,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:44:11,909 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:44:11,910 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] [2020-04-18 11:44:11,911 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-18 11:44:11,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:11,918 INFO L82 PathProgramCache]: Analyzing trace with hash -126150362, now seen corresponding path program 1 times [2020-04-18 11:44:11,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:44:11,926 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1901384088] [2020-04-18 11:44:11,944 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:11,970 INFO L259 McrAutomatonBuilder]: Finished intersection with 233 states and 592 transitions. [2020-04-18 11:44:11,976 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2020-04-18 11:44:11,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:44:11,978 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:44:11,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:11,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1786222118, now seen corresponding path program 2 times [2020-04-18 11:44:11,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:44:11,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702489130] [2020-04-18 11:44:11,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:44:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:44:12,748 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 11:44:12,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702489130] [2020-04-18 11:44:12,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:44:12,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 11:44:12,753 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:44:12,758 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:12,778 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-04-18 11:44:12,779 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:44:13,216 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 11:44:13,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 11:44:13,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-04-18 11:44:13,223 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 15 states. [2020-04-18 11:44:14,112 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 36 [2020-04-18 11:44:14,373 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 43 [2020-04-18 11:44:14,986 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-04-18 11:44:15,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:44:15,689 INFO L93 Difference]: Finished difference Result 387 states and 906 transitions. [2020-04-18 11:44:15,689 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 906 transitions. [2020-04-18 11:44:15,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:44:15,694 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:44:15,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:15,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1848783218, now seen corresponding path program 3 times [2020-04-18 11:44:15,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:44:15,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515077602] [2020-04-18 11:44:15,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:44:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:44:16,250 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 11:44:16,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515077602] [2020-04-18 11:44:16,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:44:16,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-04-18 11:44:16,252 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:44:16,257 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:16,266 INFO L259 McrAutomatonBuilder]: Finished intersection with 41 states and 58 transitions. [2020-04-18 11:44:16,266 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:44:18,728 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 11:44:18,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-04-18 11:44:18,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2577, Unknown=0, NotChecked=0, Total=2862 [2020-04-18 11:44:18,731 INFO L87 Difference]: Start difference. First operand 387 states and 906 transitions. Second operand 30 states. [2020-04-18 11:44:19,947 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2020-04-18 11:44:20,162 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 42 [2020-04-18 11:44:20,481 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-04-18 11:44:21,032 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2020-04-18 11:44:21,308 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 49 [2020-04-18 11:44:21,763 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2020-04-18 11:44:22,026 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2020-04-18 11:44:22,565 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 59 [2020-04-18 11:44:22,919 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 63 [2020-04-18 11:44:23,505 WARN L192 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 61 [2020-04-18 11:44:24,189 WARN L192 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 66 [2020-04-18 11:44:25,665 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 60 [2020-04-18 11:44:25,959 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 63 [2020-04-18 11:44:26,299 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 67 [2020-04-18 11:44:26,737 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 70 [2020-04-18 11:44:27,354 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 35 [2020-04-18 11:44:27,662 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 39 [2020-04-18 11:44:27,925 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 38 [2020-04-18 11:44:28,401 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 42 [2020-04-18 11:44:28,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:44:28,669 INFO L93 Difference]: Finished difference Result 486 states and 1062 transitions. [2020-04-18 11:44:28,669 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 1062 transitions. [2020-04-18 11:44:28,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:44:28,671 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:44:28,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:28,672 INFO L82 PathProgramCache]: Analyzing trace with hash -2036242910, now seen corresponding path program 4 times [2020-04-18 11:44:28,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:44:28,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877872938] [2020-04-18 11:44:28,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:44:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:44:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:44:29,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877872938] [2020-04-18 11:44:29,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:44:29,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 11:44:29,142 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:44:29,145 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:29,154 INFO L259 McrAutomatonBuilder]: Finished intersection with 41 states and 58 transitions. [2020-04-18 11:44:29,155 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:44:31,623 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 11:44:31,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-04-18 11:44:31,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=9857, Unknown=0, NotChecked=0, Total=10920 [2020-04-18 11:44:31,629 INFO L87 Difference]: Start difference. First operand 486 states and 1062 transitions. Second operand 26 states. [2020-04-18 11:44:34,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:44:34,620 INFO L93 Difference]: Finished difference Result 486 states and 1062 transitions. [2020-04-18 11:44:34,620 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 1062 transitions. [2020-04-18 11:44:34,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:44:34,624 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1901384088] [2020-04-18 11:44:34,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:44:34,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-04-18 11:44:34,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1901384088] [2020-04-18 11:44:34,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2020-04-18 11:44:34,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:44:34,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2020-04-18 11:44:34,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=13575, Unknown=0, NotChecked=0, Total=15006 [2020-04-18 11:44:34,634 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 65 states. [2020-04-18 11:44:36,310 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 37 [2020-04-18 11:44:36,595 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 30 [2020-04-18 11:44:36,863 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 40 [2020-04-18 11:44:37,107 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 38 [2020-04-18 11:44:37,509 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 42 [2020-04-18 11:44:37,914 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 41 [2020-04-18 11:44:38,367 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 48 [2020-04-18 11:44:38,680 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 43 [2020-04-18 11:44:39,271 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 50 [2020-04-18 11:44:39,727 WARN L192 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 45 [2020-04-18 11:44:40,369 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 51 [2020-04-18 11:44:41,205 WARN L192 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 53 [2020-04-18 11:44:41,653 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 43 [2020-04-18 11:44:42,144 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 45 [2020-04-18 11:44:42,562 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 46 [2020-04-18 11:44:43,377 WARN L192 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 48 [2020-04-18 11:44:44,106 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 48 [2020-04-18 11:44:44,639 WARN L192 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 48 [2020-04-18 11:44:44,988 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 49 [2020-04-18 11:44:45,628 WARN L192 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 51 [2020-04-18 11:44:46,298 WARN L192 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 56 [2020-04-18 11:44:46,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:44:46,382 INFO L93 Difference]: Finished difference Result 354 states and 888 transitions. [2020-04-18 11:44:46,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-04-18 11:44:46,384 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 25 [2020-04-18 11:44:46,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:44:46,398 INFO L225 Difference]: With dead ends: 354 [2020-04-18 11:44:46,398 INFO L226 Difference]: Without dead ends: 341 [2020-04-18 11:44:46,405 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6784 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=3191, Invalid=19459, Unknown=0, NotChecked=0, Total=22650 [2020-04-18 11:44:46,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-04-18 11:44:46,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2020-04-18 11:44:46,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-04-18 11:44:46,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 862 transitions. [2020-04-18 11:44:46,472 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 862 transitions. Word has length 25 [2020-04-18 11:44:46,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:44:46,473 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 862 transitions. [2020-04-18 11:44:46,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 65 states. [2020-04-18 11:44:46,473 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 862 transitions. [2020-04-18 11:44:46,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:44:46,476 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:44:46,476 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] [2020-04-18 11:44:46,476 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-18 11:44:46,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:46,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1895995450, now seen corresponding path program 1 times [2020-04-18 11:44:46,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:44:46,477 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1882191479] [2020-04-18 11:44:46,478 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:46,485 INFO L259 McrAutomatonBuilder]: Finished intersection with 233 states and 592 transitions. [2020-04-18 11:44:46,487 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2020-04-18 11:44:46,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:44:46,488 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:44:46,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:46,489 INFO L82 PathProgramCache]: Analyzing trace with hash 16377030, now seen corresponding path program 2 times [2020-04-18 11:44:46,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:44:46,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155056560] [2020-04-18 11:44:46,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:44:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:44:46,952 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 11:44:46,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155056560] [2020-04-18 11:44:46,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:44:46,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 11:44:46,953 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:44:46,956 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:46,966 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-04-18 11:44:46,966 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:44:47,394 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 11:44:47,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 11:44:47,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-04-18 11:44:47,396 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 14 states. [2020-04-18 11:44:48,165 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 35 [2020-04-18 11:44:48,473 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 44 [2020-04-18 11:44:48,710 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 46 [2020-04-18 11:44:49,067 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 40 [2020-04-18 11:44:49,439 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 51 [2020-04-18 11:44:49,926 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 38 [2020-04-18 11:44:50,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:44:50,116 INFO L93 Difference]: Finished difference Result 338 states and 763 transitions. [2020-04-18 11:44:50,116 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 763 transitions. [2020-04-18 11:44:50,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:44:50,118 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:44:50,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:50,119 INFO L82 PathProgramCache]: Analyzing trace with hash -2007614720, now seen corresponding path program 3 times [2020-04-18 11:44:50,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:44:50,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176021653] [2020-04-18 11:44:50,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:44:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:44:50,801 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 11:44:50,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176021653] [2020-04-18 11:44:50,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:44:50,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 11:44:50,802 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:44:50,805 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:50,811 INFO L259 McrAutomatonBuilder]: Finished intersection with 41 states and 58 transitions. [2020-04-18 11:44:50,811 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:44:52,414 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 12 times. [2020-04-18 11:44:52,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 11:44:52,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1652, Unknown=0, NotChecked=0, Total=1892 [2020-04-18 11:44:52,416 INFO L87 Difference]: Start difference. First operand 338 states and 763 transitions. Second operand 23 states. [2020-04-18 11:44:52,730 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2020-04-18 11:44:53,226 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2020-04-18 11:44:53,670 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2020-04-18 11:44:54,056 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2020-04-18 11:44:54,489 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2020-04-18 11:44:54,946 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2020-04-18 11:44:55,162 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2020-04-18 11:44:55,458 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 48 [2020-04-18 11:44:55,754 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 62 [2020-04-18 11:44:56,041 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2020-04-18 11:44:56,384 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2020-04-18 11:44:56,814 WARN L192 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 66 [2020-04-18 11:44:57,079 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2020-04-18 11:44:57,540 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-04-18 11:44:57,890 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2020-04-18 11:44:58,219 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2020-04-18 11:44:58,700 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2020-04-18 11:44:59,171 WARN L192 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2020-04-18 11:45:00,079 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2020-04-18 11:45:00,284 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 51 [2020-04-18 11:45:00,637 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2020-04-18 11:45:00,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:45:00,764 INFO L93 Difference]: Finished difference Result 407 states and 862 transitions. [2020-04-18 11:45:00,764 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 862 transitions. [2020-04-18 11:45:00,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:45:00,766 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:45:00,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:45:00,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1564714170, now seen corresponding path program 4 times [2020-04-18 11:45:00,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:45:00,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001070789] [2020-04-18 11:45:00,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:45:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:45:00,945 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 11:45:00,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001070789] [2020-04-18 11:45:00,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:45:00,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 11:45:00,946 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:45:00,949 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:45:00,955 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 62 transitions. [2020-04-18 11:45:00,956 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:45:01,417 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 11:45:01,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 11:45:01,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=828, Invalid=5024, Unknown=0, NotChecked=0, Total=5852 [2020-04-18 11:45:01,419 INFO L87 Difference]: Start difference. First operand 407 states and 862 transitions. Second operand 9 states. [2020-04-18 11:45:01,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:45:01,883 INFO L93 Difference]: Finished difference Result 421 states and 874 transitions. [2020-04-18 11:45:01,883 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 874 transitions. [2020-04-18 11:45:01,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:45:01,885 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 11:45:01,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:45:01,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1907940730, now seen corresponding path program 5 times [2020-04-18 11:45:01,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:45:01,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100447304] [2020-04-18 11:45:01,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:45:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:45:02,434 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 11:45:02,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100447304] [2020-04-18 11:45:02,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:45:02,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 11:45:02,436 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:45:02,439 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:45:02,446 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 76 transitions. [2020-04-18 11:45:02,446 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:45:05,112 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 16 times. [2020-04-18 11:45:05,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-04-18 11:45:05,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1057, Invalid=9043, Unknown=0, NotChecked=0, Total=10100 [2020-04-18 11:45:05,115 INFO L87 Difference]: Start difference. First operand 421 states and 874 transitions. Second operand 25 states. [2020-04-18 11:45:07,361 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 48 [2020-04-18 11:45:07,632 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 41 [2020-04-18 11:45:08,413 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 48 [2020-04-18 11:45:08,891 WARN L192 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 52 [2020-04-18 11:45:10,338 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2020-04-18 11:45:10,679 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 55 [2020-04-18 11:45:10,997 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 45 [2020-04-18 11:45:11,373 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 40 [2020-04-18 11:45:11,684 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2020-04-18 11:45:11,919 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2020-04-18 11:45:12,368 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2020-04-18 11:45:12,702 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-04-18 11:45:13,052 WARN L192 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 56 [2020-04-18 11:45:13,443 WARN L192 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 66 [2020-04-18 11:45:13,997 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 51 [2020-04-18 11:45:14,470 WARN L192 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 55 [2020-04-18 11:45:14,818 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2020-04-18 11:45:16,857 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2020-04-18 11:45:17,164 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 43 [2020-04-18 11:45:17,502 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2020-04-18 11:45:17,714 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2020-04-18 11:45:17,975 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2020-04-18 11:45:18,452 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 47 [2020-04-18 11:45:19,425 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2020-04-18 11:45:19,815 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2020-04-18 11:45:20,492 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 46 [2020-04-18 11:45:20,785 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2020-04-18 11:45:21,324 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2020-04-18 11:45:21,601 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 50 [2020-04-18 11:45:22,053 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2020-04-18 11:45:22,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:45:22,586 INFO L93 Difference]: Finished difference Result 804 states and 1574 transitions. [2020-04-18 11:45:22,586 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1574 transitions. [2020-04-18 11:45:22,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:45:22,589 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 11:45:22,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:45:22,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1692561630, now seen corresponding path program 6 times [2020-04-18 11:45:22,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:45:22,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854850175] [2020-04-18 11:45:22,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:45:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:45:23,043 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 11:45:23,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854850175] [2020-04-18 11:45:23,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:45:23,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-04-18 11:45:23,044 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:45:23,046 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:45:23,051 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 52 transitions. [2020-04-18 11:45:23,052 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:45:24,085 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 11:45:24,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 11:45:24,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2770, Invalid=24290, Unknown=0, NotChecked=0, Total=27060 [2020-04-18 11:45:24,088 INFO L87 Difference]: Start difference. First operand 804 states and 1574 transitions. Second operand 13 states. [2020-04-18 11:45:24,311 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 30 [2020-04-18 11:45:24,537 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 39 [2020-04-18 11:45:24,787 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 31 [2020-04-18 11:45:25,048 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2020-04-18 11:45:25,276 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 35 [2020-04-18 11:45:25,572 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2020-04-18 11:45:25,968 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 35 [2020-04-18 11:45:26,280 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2020-04-18 11:45:26,678 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2020-04-18 11:45:26,885 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 38 [2020-04-18 11:45:27,156 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 38 [2020-04-18 11:45:27,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:45:27,367 INFO L93 Difference]: Finished difference Result 804 states and 1574 transitions. [2020-04-18 11:45:27,367 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1574 transitions. [2020-04-18 11:45:27,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:45:27,369 INFO L105 Mcr]: ---- MCR iteration 5 ---- [2020-04-18 11:45:27,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:45:27,370 INFO L82 PathProgramCache]: Analyzing trace with hash -145869278, now seen corresponding path program 7 times [2020-04-18 11:45:27,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:45:27,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548685992] [2020-04-18 11:45:27,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:45:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:45:27,956 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 11:45:27,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548685992] [2020-04-18 11:45:27,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:45:27,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 11:45:27,957 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:45:27,960 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:45:27,964 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 52 transitions. [2020-04-18 11:45:27,965 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:45:30,930 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 10 times. [2020-04-18 11:45:30,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 11:45:30,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3007, Invalid=32525, Unknown=0, NotChecked=0, Total=35532 [2020-04-18 11:45:30,934 INFO L87 Difference]: Start difference. First operand 804 states and 1574 transitions. Second operand 23 states. [2020-04-18 11:45:31,935 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 46 [2020-04-18 11:45:32,363 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-04-18 11:45:33,336 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2020-04-18 11:45:33,654 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 50 [2020-04-18 11:45:34,019 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-04-18 11:45:34,256 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 43 [2020-04-18 11:45:34,620 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-04-18 11:45:34,987 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 54 [2020-04-18 11:45:35,732 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 42 [2020-04-18 11:45:35,945 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2020-04-18 11:45:36,386 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-04-18 11:45:36,722 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 55 [2020-04-18 11:45:37,091 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 56 [2020-04-18 11:45:37,513 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 46 [2020-04-18 11:45:37,775 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 46 [2020-04-18 11:45:38,186 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2020-04-18 11:45:38,446 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 47 [2020-04-18 11:45:38,943 WARN L192 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 60 [2020-04-18 11:45:39,418 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 61 [2020-04-18 11:45:39,997 WARN L192 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2020-04-18 11:45:40,630 WARN L192 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2020-04-18 11:45:41,500 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 43 [2020-04-18 11:45:42,081 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 49 [2020-04-18 11:45:42,326 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 46 [2020-04-18 11:45:42,927 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 47 [2020-04-18 11:45:43,464 WARN L192 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 62 [2020-04-18 11:45:43,891 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2020-04-18 11:45:44,874 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 46 [2020-04-18 11:45:45,725 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 45 [2020-04-18 11:45:45,958 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 45 [2020-04-18 11:45:46,205 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2020-04-18 11:45:46,453 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 49 [2020-04-18 11:45:46,718 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 49 [2020-04-18 11:45:46,990 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 49 [2020-04-18 11:45:47,353 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 50 [2020-04-18 11:45:48,065 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 52 [2020-04-18 11:45:48,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:45:48,286 INFO L93 Difference]: Finished difference Result 996 states and 1880 transitions. [2020-04-18 11:45:48,286 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1880 transitions. [2020-04-18 11:45:48,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:45:48,289 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1882191479] [2020-04-18 11:45:48,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:45:48,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-04-18 11:45:48,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1882191479] [2020-04-18 11:45:48,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2020-04-18 11:45:48,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:45:48,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2020-04-18 11:45:48,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4597, Invalid=53243, Unknown=0, NotChecked=0, Total=57840 [2020-04-18 11:45:48,294 INFO L87 Difference]: Start difference. First operand 341 states and 862 transitions. Second operand 77 states. [2020-04-18 11:45:49,317 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 42 [2020-04-18 11:45:49,676 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 45 [2020-04-18 11:45:49,998 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 46 [2020-04-18 11:45:50,865 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 56 [2020-04-18 11:45:51,165 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 39 [2020-04-18 11:45:51,987 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 49 [2020-04-18 11:45:52,784 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 47 [2020-04-18 11:45:53,279 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 51 [2020-04-18 11:45:54,133 WARN L192 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 59 [2020-04-18 11:45:54,775 WARN L192 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 60 [2020-04-18 11:45:55,136 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 51 [2020-04-18 11:45:55,597 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 49 [2020-04-18 11:45:56,302 WARN L192 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 59 [2020-04-18 11:45:57,418 WARN L192 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 70 [2020-04-18 11:45:57,815 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 43 [2020-04-18 11:45:58,317 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 43 [2020-04-18 11:45:58,827 WARN L192 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 43 [2020-04-18 11:45:59,364 WARN L192 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 53 [2020-04-18 11:45:59,877 WARN L192 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 51 [2020-04-18 11:46:00,493 WARN L192 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 55 [2020-04-18 11:46:01,189 WARN L192 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 53 [2020-04-18 11:46:01,437 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 43 [2020-04-18 11:46:01,989 WARN L192 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 55 [2020-04-18 11:46:02,598 WARN L192 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 51 [2020-04-18 11:46:03,355 WARN L192 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 64 [2020-04-18 11:46:04,101 WARN L192 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 64 [2020-04-18 11:46:04,918 WARN L192 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 63 [2020-04-18 11:46:05,511 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 47 [2020-04-18 11:46:06,131 WARN L192 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 47 [2020-04-18 11:46:06,650 WARN L192 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 47 [2020-04-18 11:46:07,283 WARN L192 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 58 [2020-04-18 11:46:07,960 WARN L192 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 57 [2020-04-18 11:46:08,595 WARN L192 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 57 [2020-04-18 11:46:09,010 WARN L192 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 46 [2020-04-18 11:46:09,393 WARN L192 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 46 [2020-04-18 11:46:09,846 WARN L192 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 46 [2020-04-18 11:46:10,407 WARN L192 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 56 [2020-04-18 11:46:10,946 WARN L192 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 54 [2020-04-18 11:46:11,596 WARN L192 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 58 [2020-04-18 11:46:12,330 WARN L192 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 56 [2020-04-18 11:46:12,951 WARN L192 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 58 [2020-04-18 11:46:13,571 WARN L192 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 54 [2020-04-18 11:46:14,202 WARN L192 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 51 [2020-04-18 11:46:15,009 WARN L192 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 67 [2020-04-18 11:46:15,836 WARN L192 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 67 [2020-04-18 11:46:16,711 WARN L192 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 66 [2020-04-18 11:46:17,274 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 50 [2020-04-18 11:46:17,940 WARN L192 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 50 [2020-04-18 11:46:18,513 WARN L192 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 50 [2020-04-18 11:46:19,153 WARN L192 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 61 [2020-04-18 11:46:19,870 WARN L192 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 60 [2020-04-18 11:46:20,562 WARN L192 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 60 [2020-04-18 11:46:21,317 WARN L192 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 54 [2020-04-18 11:46:21,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:46:21,453 INFO L93 Difference]: Finished difference Result 341 states and 854 transitions. [2020-04-18 11:46:21,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-04-18 11:46:21,454 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 25 [2020-04-18 11:46:21,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:46:21,460 INFO L225 Difference]: With dead ends: 341 [2020-04-18 11:46:21,460 INFO L226 Difference]: Without dead ends: 245 [2020-04-18 11:46:21,465 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 111 SyntacticMatches, 6 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33367 ImplicationChecksByTransitivity, 68.0s TimeCoverageRelationStatistics Valid=11588, Invalid=79314, Unknown=0, NotChecked=0, Total=90902 [2020-04-18 11:46:21,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-04-18 11:46:21,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2020-04-18 11:46:21,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-04-18 11:46:21,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 614 transitions. [2020-04-18 11:46:21,478 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 614 transitions. Word has length 25 [2020-04-18 11:46:21,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:46:21,479 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 614 transitions. [2020-04-18 11:46:21,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 77 states. [2020-04-18 11:46:21,479 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 614 transitions. [2020-04-18 11:46:21,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:46:21,480 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:46:21,480 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] [2020-04-18 11:46:21,480 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-18 11:46:21,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:46:21,481 INFO L82 PathProgramCache]: Analyzing trace with hash 284319048, now seen corresponding path program 1 times [2020-04-18 11:46:21,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:46:21,481 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [776051609] [2020-04-18 11:46:21,482 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:46:21,485 INFO L259 McrAutomatonBuilder]: Finished intersection with 233 states and 592 transitions. [2020-04-18 11:46:21,487 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2020-04-18 11:46:21,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:46:21,488 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:46:21,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:46:21,488 INFO L82 PathProgramCache]: Analyzing trace with hash -2098275768, now seen corresponding path program 2 times [2020-04-18 11:46:21,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:46:21,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136465614] [2020-04-18 11:46:21,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:46:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:46:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:46:21,549 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 11:46:21,549 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 11:46:21,550 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 11:46:21,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:46:21 BasicIcfg [2020-04-18 11:46:21,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 11:46:21,598 INFO L168 Benchmark]: Toolchain (without parser) took 132706.20 ms. Allocated memory was 143.1 MB in the beginning and 649.6 MB in the end (delta: 506.5 MB). Free memory was 99.2 MB in the beginning and 571.7 MB in the end (delta: -472.5 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:46:21,598 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 11:46:21,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.04 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 97.2 MB in the beginning and 177.4 MB in the end (delta: -80.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2020-04-18 11:46:21,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.30 ms. Allocated memory is still 200.3 MB. Free memory was 177.4 MB in the beginning and 176.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 11:46:21,599 INFO L168 Benchmark]: Boogie Preprocessor took 22.88 ms. Allocated memory is still 200.3 MB. Free memory was 176.0 MB in the beginning and 174.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 11:46:21,599 INFO L168 Benchmark]: RCFGBuilder took 463.31 ms. Allocated memory is still 200.3 MB. Free memory was 174.7 MB in the beginning and 157.1 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-04-18 11:46:21,600 INFO L168 Benchmark]: TraceAbstraction took 131797.39 ms. Allocated memory was 200.3 MB in the beginning and 649.6 MB in the end (delta: 449.3 MB). Free memory was 157.1 MB in the beginning and 571.7 MB in the end (delta: -414.6 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-04-18 11:46:21,602 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 349.04 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 97.2 MB in the beginning and 177.4 MB in the end (delta: -80.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.30 ms. Allocated memory is still 200.3 MB. Free memory was 177.4 MB in the beginning and 176.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.88 ms. Allocated memory is still 200.3 MB. Free memory was 176.0 MB in the beginning and 174.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 463.31 ms. Allocated memory is still 200.3 MB. Free memory was 174.7 MB in the beginning and 157.1 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 131797.39 ms. Allocated memory was 200.3 MB in the beginning and 649.6 MB in the end (delta: 449.3 MB). Free memory was 157.1 MB in the beginning and 571.7 MB in the end (delta: -414.6 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 81 ProgramPointsBefore, 39 ProgramPointsAfterwards, 77 TransitionsBefore, 35 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 495 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1623 CheckedPairsTotal, 43 TotalNumberOfCompositions - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int counter = 0; [L23] 0 int val = 0; [L25] 0 pthread_t first_thread_id; [L26] 0 pthread_t second_thread_id; [L27] 0 pthread_t third_thread_id; [L29] FCALL, FORK 0 pthread_create(&first_thread_id, NULL, foo, &val) VAL [counter=0, n={6:0}] [L30] FCALL, FORK 0 pthread_create(&second_thread_id, NULL, foo, &val) VAL [counter=0, n={6:0}] [L16] 2 int *x = (int *)n; [L17] EXPR 2 ++counter VAL [++counter=1, counter=0, n={6:0}, n={6:0}, x={6:0}] [L31] FCALL, FORK 0 pthread_create(&third_thread_id, NULL, foo, &val) VAL [++counter=1, counter=0, n={6:0}, n={6:0}, x={6:0}] [L16] 3 int *x = (int *)n; [L17] 3 ++counter VAL [++counter=1, counter=0, n={6:0}, n={6:0}, x={6:0}] [L16] 1 int *x = (int *)n; [L17] 1 ++counter VAL [++counter=1, counter=2, n={6:0}, n={6:0}, x={6:0}] [L17] 2 *x = ++counter [L18] 2 return 0; [L17] EXPR 3 ++counter VAL [++counter=1, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L17] 3 *x = ++counter [L18] 3 return 0; [L33] 0 \read(first_thread_id) VAL [++counter=1, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L17] 1 *x = ++counter [L18] 1 return 0; [L33] FCALL, JOIN 1 pthread_join(first_thread_id, NULL) VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L34] 0 \read(second_thread_id) VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L34] FCALL, JOIN 2 pthread_join(second_thread_id, NULL) VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L35] 0 \read(third_thread_id) VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L35] FCALL, JOIN 3 pthread_join(third_thread_id, NULL) VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L37] FCALL 0 IdentifierExpression[val] [L37] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 131.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 44.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 60 SDtfs, 2393 SDslu, 956 SDs, 0 SdLazy, 5905 SolverSat, 821 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 606 GetRequests, 150 SyntacticMatches, 7 SemanticMatches, 449 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40151 ImplicationChecksByTransitivity, 90.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...