/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:37:51,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:37:51,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:37:51,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:37:51,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:37:51,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:37:51,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:37:51,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:37:51,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:37:51,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:37:51,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:37:51,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:37:51,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:37:51,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:37:51,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:37:51,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:37:51,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:37:51,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:37:51,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:37:51,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:37:51,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:37:51,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:37:51,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:37:51,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:37:51,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-29 03:37:51,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-29 03:37:51,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-29 03:37:51,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-29 03:37:51,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-29 03:37:51,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-29 03:37:51,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 03:37:51,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 03:37:51,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 03:37:51,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 03:37:51,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 03:37:51,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 03:37:51,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 03:37:51,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 03:37:51,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:37:51,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:37:51,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:37:51,084 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-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:37:51,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:37:51,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:37:51,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:37:51,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:37:51,115 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:37:51,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:37:51,115 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:37:51,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:37:51,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:37:51,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:37:51,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:37:51,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:37:51,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:37:51,117 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:37:51,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:37:51,118 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:37:51,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:37:51,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:37:51,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:37:51,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:37:51,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:37:51,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:37:51,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:37:51,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:37:51,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:37:51,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:37:51,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:37:51,121 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:37:51,121 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:37:51,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:37:51,122 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:37:51,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:37:51,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:37:51,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:37:51,541 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 03:37:51,541 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 03:37:51,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c [2021-04-29 03:37:51,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64dd099f/7cd28011873d43dcbaf4185c1cf01bb2/FLAGea413116d [2021-04-29 03:37:52,274 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 03:37:52,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c [2021-04-29 03:37:52,275 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:37:52,275 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:37:52,275 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:37:52,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64dd099f/7cd28011873d43dcbaf4185c1cf01bb2/FLAGea413116d [2021-04-29 03:37:52,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64dd099f/7cd28011873d43dcbaf4185c1cf01bb2 [2021-04-29 03:37:52,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:37:52,682 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 03:37:52,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 03:37:52,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 03:37:52,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 03:37:52,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:37:52" (1/1) ... [2021-04-29 03:37:52,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56157101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52, skipping insertion in model container [2021-04-29 03:37:52,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:37:52" (1/1) ... [2021-04-29 03:37:52,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 03:37:52,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 03:37:52,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:37:52,880 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 03:37:52,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:37:52,910 INFO L208 MainTranslator]: Completed translation [2021-04-29 03:37:52,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52 WrapperNode [2021-04-29 03:37:52,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 03:37:52,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:37:52,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:37:52,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:37:52,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52" (1/1) ... [2021-04-29 03:37:52,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52" (1/1) ... [2021-04-29 03:37:52,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:37:52,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:37:52,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:37:52,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:37:52,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52" (1/1) ... [2021-04-29 03:37:52,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52" (1/1) ... [2021-04-29 03:37:52,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52" (1/1) ... [2021-04-29 03:37:52,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52" (1/1) ... [2021-04-29 03:37:52,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52" (1/1) ... [2021-04-29 03:37:52,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52" (1/1) ... [2021-04-29 03:37:52,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52" (1/1) ... [2021-04-29 03:37:52,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:37:52,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:37:52,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:37:52,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:37:52,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52" (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 [2021-04-29 03:37:53,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-04-29 03:37:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 03:37:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-04-29 03:37:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-04-29 03:37:53,064 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-04-29 03:37:53,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:37:53,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:37:53,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 03:37:53,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-29 03:37:53,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-04-29 03:37:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 03:37:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 03:37:53,067 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:37:53,370 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:37:53,370 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-04-29 03:37:53,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:37:53 BoogieIcfgContainer [2021-04-29 03:37:53,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:37:53,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:37:53,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:37:53,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:37:53,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 03:37:52" (1/3) ... [2021-04-29 03:37:53,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7632526c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:37:53, skipping insertion in model container [2021-04-29 03:37:53,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:52" (2/3) ... [2021-04-29 03:37:53,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7632526c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:37:53, skipping insertion in model container [2021-04-29 03:37:53,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:37:53" (3/3) ... [2021-04-29 03:37:53,417 INFO L111 eAbstractionObserver]: Analyzing ICFG joinMultipleReturnValues.c [2021-04-29 03:37:53,431 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:37:53,443 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-29 03:37:53,444 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:37:53,512 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,512 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,512 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,513 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,513 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,513 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,513 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,513 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,514 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,514 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,514 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,514 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,515 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,515 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,515 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,515 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,516 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,516 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,516 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,516 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,517 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,517 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,517 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,517 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,518 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,518 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,518 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,518 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,518 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,519 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,519 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,519 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,519 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,520 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,520 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,520 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,520 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,521 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,521 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,521 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,521 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,522 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,522 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,522 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,522 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,522 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,523 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,523 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,523 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,523 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,524 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,524 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,524 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,525 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,525 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,525 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,525 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,526 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,526 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,526 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,527 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,527 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,527 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,528 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,528 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,528 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,528 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,529 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,529 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,529 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,529 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,529 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,530 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,530 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,530 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,530 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,533 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,534 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,534 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,534 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,534 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,535 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,535 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,535 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,535 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,535 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,536 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,536 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:53,545 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-04-29 03:37:53,573 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 03:37:53,601 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:37:53,601 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:37:53,601 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:37:53,601 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:37:53,602 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:37:53,602 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:37:53,602 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:37:53,602 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:37:53,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 58 transitions, 124 flow [2021-04-29 03:37:53,655 INFO L129 PetriNetUnfolder]: 1/57 cut-off events. [2021-04-29 03:37:53,655 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 03:37:53,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 1/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2021-04-29 03:37:53,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 58 transitions, 124 flow [2021-04-29 03:37:53,663 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 47 transitions, 100 flow [2021-04-29 03:37:53,665 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:37:53,681 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 47 transitions, 100 flow [2021-04-29 03:37:53,685 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 47 transitions, 100 flow [2021-04-29 03:37:53,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 47 transitions, 100 flow [2021-04-29 03:37:53,712 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2021-04-29 03:37:53,712 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 03:37:53,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 47 events. 1/47 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2021-04-29 03:37:53,717 INFO L146 LiptonReduction]: Number of co-enabled transitions 68 [2021-04-29 03:37:57,897 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-04-29 03:37:58,447 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2021-04-29 03:37:58,659 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2021-04-29 03:38:00,081 INFO L158 LiptonReduction]: Checked pairs total: 135 [2021-04-29 03:38:00,082 INFO L160 LiptonReduction]: Total number of compositions: 89 [2021-04-29 03:38:00,085 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6422 [2021-04-29 03:38:00,102 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2021-04-29 03:38:00,102 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 03:38:00,103 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:38:00,103 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:38:00,104 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:38:00,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:38:00,110 INFO L82 PathProgramCache]: Analyzing trace with hash 771088146, now seen corresponding path program 1 times [2021-04-29 03:38:00,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:38:00,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062867873] [2021-04-29 03:38:00,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:38:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:38:00,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:00,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-29 03:38:00,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:00,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:38:00,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:00,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:38:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:38:00,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062867873] [2021-04-29 03:38:00,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:38:00,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 03:38:00,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089382054] [2021-04-29 03:38:00,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 03:38:00,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:38:00,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 03:38:00,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 03:38:00,382 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 147 [2021-04-29 03:38:00,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 56 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:00,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:38:00,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 147 [2021-04-29 03:38:00,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:38:00,534 INFO L129 PetriNetUnfolder]: 17/88 cut-off events. [2021-04-29 03:38:00,534 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 03:38:00,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 88 events. 17/88 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 390 event pairs, 16 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 109. Up to 50 conditions per place. [2021-04-29 03:38:00,536 INFO L132 encePairwiseOnDemand]: 139/147 looper letters, 5 selfloop transitions, 3 changer transitions 42/53 dead transitions. [2021-04-29 03:38:00,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 53 transitions, 202 flow [2021-04-29 03:38:00,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 03:38:00,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 03:38:00,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2021-04-29 03:38:00,556 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4574829931972789 [2021-04-29 03:38:00,557 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 269 transitions. [2021-04-29 03:38:00,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 269 transitions. [2021-04-29 03:38:00,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:38:00,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 269 transitions. [2021-04-29 03:38:00,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:00,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:00,576 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:00,578 INFO L185 Difference]: Start difference. First operand has 59 places, 56 transitions, 118 flow. Second operand 4 states and 269 transitions. [2021-04-29 03:38:00,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 53 transitions, 202 flow [2021-04-29 03:38:00,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 53 transitions, 198 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 03:38:00,583 INFO L241 Difference]: Finished difference. Result has 57 places, 10 transitions, 28 flow [2021-04-29 03:38:00,585 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=28, PETRI_PLACES=57, PETRI_TRANSITIONS=10} [2021-04-29 03:38:00,586 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -2 predicate places. [2021-04-29 03:38:00,586 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:38:00,587 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 10 transitions, 28 flow [2021-04-29 03:38:00,587 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 10 transitions, 28 flow [2021-04-29 03:38:00,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 15 places, 10 transitions, 28 flow [2021-04-29 03:38:00,591 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-04-29 03:38:00,591 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:38:00,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16 conditions, 10 events. 0/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 03:38:00,591 INFO L146 LiptonReduction]: Number of co-enabled transitions 8 [2021-04-29 03:38:00,601 INFO L158 LiptonReduction]: Checked pairs total: 2 [2021-04-29 03:38:00,601 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:38:00,601 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-04-29 03:38:00,603 INFO L480 AbstractCegarLoop]: Abstraction has has 15 places, 10 transitions, 28 flow [2021-04-29 03:38:00,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:00,604 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:38:00,604 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:38:00,604 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:38:00,605 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:38:00,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:38:00,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1125789387, now seen corresponding path program 1 times [2021-04-29 03:38:00,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:38:00,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879424020] [2021-04-29 03:38:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:38:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:38:00,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:00,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 03:38:00,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:00,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 03:38:00,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:00,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 03:38:00,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:00,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-29 03:38:00,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:00,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-29 03:38:00,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:00,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-29 03:38:00,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:38:00,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879424020] [2021-04-29 03:38:00,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:38:00,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 03:38:00,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159344219] [2021-04-29 03:38:00,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 03:38:00,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:38:00,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 03:38:00,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-29 03:38:00,749 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 147 [2021-04-29 03:38:00,750 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 10 transitions, 28 flow. Second operand has 7 states, 7 states have (on average 39.142857142857146) internal successors, (274), 7 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:00,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:38:00,750 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 147 [2021-04-29 03:38:00,750 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:38:00,857 INFO L129 PetriNetUnfolder]: 4/17 cut-off events. [2021-04-29 03:38:00,857 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:38:00,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 17 events. 4/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 10. Up to 7 conditions per place. [2021-04-29 03:38:00,858 INFO L132 encePairwiseOnDemand]: 138/147 looper letters, 4 selfloop transitions, 7 changer transitions 1/12 dead transitions. [2021-04-29 03:38:00,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 12 transitions, 56 flow [2021-04-29 03:38:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 03:38:00,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 03:38:00,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 317 transitions. [2021-04-29 03:38:00,862 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2695578231292517 [2021-04-29 03:38:00,862 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 317 transitions. [2021-04-29 03:38:00,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 317 transitions. [2021-04-29 03:38:00,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:38:00,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 317 transitions. [2021-04-29 03:38:00,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 39.625) internal successors, (317), 8 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:00,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 147.0) internal successors, (1323), 9 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:00,870 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 147.0) internal successors, (1323), 9 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:00,870 INFO L185 Difference]: Start difference. First operand has 15 places, 10 transitions, 28 flow. Second operand 8 states and 317 transitions. [2021-04-29 03:38:00,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 12 transitions, 56 flow [2021-04-29 03:38:00,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 12 transitions, 50 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 03:38:00,871 INFO L241 Difference]: Finished difference. Result has 18 places, 8 transitions, 32 flow [2021-04-29 03:38:00,871 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=32, PETRI_PLACES=18, PETRI_TRANSITIONS=8} [2021-04-29 03:38:00,872 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -41 predicate places. [2021-04-29 03:38:00,872 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:38:00,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 18 places, 8 transitions, 32 flow [2021-04-29 03:38:00,873 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 18 places, 8 transitions, 32 flow [2021-04-29 03:38:00,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 8 transitions, 32 flow [2021-04-29 03:38:00,876 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-04-29 03:38:00,876 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:38:00,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 03:38:00,877 INFO L146 LiptonReduction]: Number of co-enabled transitions 6 [2021-04-29 03:38:00,982 INFO L158 LiptonReduction]: Checked pairs total: 14 [2021-04-29 03:38:00,982 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 03:38:00,983 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-04-29 03:38:00,984 INFO L480 AbstractCegarLoop]: Abstraction has has 17 places, 8 transitions, 32 flow [2021-04-29 03:38:00,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 39.142857142857146) internal successors, (274), 7 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:00,985 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:38:00,985 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:38:00,985 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:38:00,986 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:38:00,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:38:00,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1125789392, now seen corresponding path program 1 times [2021-04-29 03:38:00,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:38:00,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378073286] [2021-04-29 03:38:00,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:38:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:38:01,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:01,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 03:38:01,084 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-04-29 03:38:01,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-29 03:38:01,096 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-04-29 03:38:01,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 03:38:01,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:01,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 03:38:01,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:01,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 03:38:01,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:38:01,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378073286] [2021-04-29 03:38:01,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:38:01,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 03:38:01,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421843717] [2021-04-29 03:38:01,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 03:38:01,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:38:01,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 03:38:01,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-04-29 03:38:01,146 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 148 [2021-04-29 03:38:01,147 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 8 transitions, 32 flow. Second operand has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:01,147 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:38:01,147 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 148 [2021-04-29 03:38:01,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:38:01,240 INFO L129 PetriNetUnfolder]: 3/13 cut-off events. [2021-04-29 03:38:01,241 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 03:38:01,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 13 events. 3/13 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 13 event pairs, 0 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 2. Up to 4 conditions per place. [2021-04-29 03:38:01,241 INFO L132 encePairwiseOnDemand]: 142/148 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2021-04-29 03:38:01,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 10 transitions, 54 flow [2021-04-29 03:38:01,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 03:38:01,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 03:38:01,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 298 transitions. [2021-04-29 03:38:01,244 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2876447876447876 [2021-04-29 03:38:01,244 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 298 transitions. [2021-04-29 03:38:01,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 298 transitions. [2021-04-29 03:38:01,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:38:01,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 298 transitions. [2021-04-29 03:38:01,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 42.57142857142857) internal successors, (298), 7 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:01,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 148.0) internal successors, (1184), 8 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:01,251 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 148.0) internal successors, (1184), 8 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:01,251 INFO L185 Difference]: Start difference. First operand has 17 places, 8 transitions, 32 flow. Second operand 7 states and 298 transitions. [2021-04-29 03:38:01,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 10 transitions, 54 flow [2021-04-29 03:38:01,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 10 transitions, 44 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-04-29 03:38:01,252 INFO L241 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2021-04-29 03:38:01,252 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2021-04-29 03:38:01,253 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -42 predicate places. [2021-04-29 03:38:01,253 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:38:01,253 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 0 transitions, 0 flow [2021-04-29 03:38:01,253 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 0 transitions, 0 flow [2021-04-29 03:38:01,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 03:38:01,254 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 03:38:01,254 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:38:01,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 03:38:01,254 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:38:01,255 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:38:01,255 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:38:01,255 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 03:38:01,256 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 03:38:01,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:01,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 03:38:01,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:38:01 BasicIcfg [2021-04-29 03:38:01,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:38:01,263 INFO L168 Benchmark]: Toolchain (without parser) took 8622.49 ms. Allocated memory was 302.0 MB in the beginning and 461.4 MB in the end (delta: 159.4 MB). Free memory was 276.2 MB in the beginning and 398.7 MB in the end (delta: -122.5 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:01,264 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 302.0 MB. Free memory was 271.6 MB in the beginning and 271.4 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:38:01,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.15 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 264.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:01,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.75 ms. Allocated memory is still 302.0 MB. Free memory was 264.2 MB in the beginning and 262.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:01,266 INFO L168 Benchmark]: Boogie Preprocessor took 25.00 ms. Allocated memory is still 302.0 MB. Free memory was 262.8 MB in the beginning and 261.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:38:01,266 INFO L168 Benchmark]: RCFGBuilder took 402.57 ms. Allocated memory is still 302.0 MB. Free memory was 261.5 MB in the beginning and 243.0 MB in the end (delta: 18.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:01,267 INFO L168 Benchmark]: TraceAbstraction took 7862.77 ms. Allocated memory was 302.0 MB in the beginning and 461.4 MB in the end (delta: 159.4 MB). Free memory was 284.8 MB in the beginning and 398.7 MB in the end (delta: -113.8 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:01,271 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 302.0 MB. Free memory was 271.6 MB in the beginning and 271.4 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 227.15 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 264.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.75 ms. Allocated memory is still 302.0 MB. Free memory was 264.2 MB in the beginning and 262.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.00 ms. Allocated memory is still 302.0 MB. Free memory was 262.8 MB in the beginning and 261.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 402.57 ms. Allocated memory is still 302.0 MB. Free memory was 261.5 MB in the beginning and 243.0 MB in the end (delta: 18.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7862.77 ms. Allocated memory was 302.0 MB in the beginning and 461.4 MB in the end (delta: 159.4 MB). Free memory was 284.8 MB in the beginning and 398.7 MB in the end (delta: -113.8 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6396.3ms, 50 PlacesBefore, 59 PlacesAfterwards, 47 TransitionsBefore, 56 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 6 FixpointIterations, 52 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 89 TotalNumberOfCompositions, 135 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 133, positive: 110, positive conditional: 110, positive unconditional: 0, negative: 23, negative conditional: 23, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 59, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 59, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 75, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 133, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 59, unknown conditional: 59, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 49, Positive conditional cache size: 49, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1ms, 57 PlacesBefore, 15 PlacesAfterwards, 10 TransitionsBefore, 10 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 49, Positive conditional cache size: 49, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 109.5ms, 18 PlacesBefore, 17 PlacesAfterwards, 8 TransitionsBefore, 8 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 53, negative conditional: 53, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 50, Positive conditional cache size: 50, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4ms, 17 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 50, Positive conditional cache size: 50, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0 - PositiveResult [Line: 44]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 58 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 7662.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 447.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6489.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 29 SDtfs, 43 SDslu, 5 SDs, 0 SdLazy, 135 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 160.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 200.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.6ms SsaConstructionTime, 101.2ms SatisfiabilityAnalysisTime, 326.8ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 195 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...