/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 17:34:54,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 17:34:54,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 17:34:54,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 17:34:54,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 17:34:54,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 17:34:54,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 17:34:54,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 17:34:54,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 17:34:54,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 17:34:54,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 17:34:54,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 17:34:54,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 17:34:54,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 17:34:54,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 17:34:54,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 17:34:54,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 17:34:54,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 17:34:54,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 17:34:54,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 17:34:54,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 17:34:54,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 17:34:54,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 17:34:54,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 17:34:54,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 17:34:54,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 17:34:54,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 17:34:54,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 17:34:54,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 17:34:54,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 17:34:54,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 17:34:54,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 17:34:54,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 17:34:54,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 17:34:54,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 17:34:54,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 17:34:54,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 17:34:54,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 17:34:54,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 17:34:54,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 17:34:54,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 17:34:54,656 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-RepeatedSemanticLbe.epf [2021-03-25 17:34:54,692 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 17:34:54,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 17:34:54,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 17:34:54,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 17:34:54,696 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 17:34:54,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 17:34:54,696 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 17:34:54,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 17:34:54,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 17:34:54,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 17:34:54,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 17:34:54,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 17:34:54,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 17:34:54,698 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 17:34:54,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 17:34:54,698 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 17:34:54,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 17:34:54,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 17:34:54,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 17:34:54,698 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 17:34:54,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 17:34:54,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 17:34:54,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 17:34:54,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 17:34:54,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 17:34:54,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 17:34:54,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 17:34:54,699 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 17:34:54,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 17:34:54,700 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 17:34:54,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 17:34:55,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 17:34:55,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 17:34:55,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 17:34:55,003 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 17:34:55,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest2.c [2021-03-25 17:34:55,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/349b5ca65/f9af58b532d144eca4f5d7002867acf9/FLAG9dee63d2b [2021-03-25 17:34:55,694 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 17:34:55,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest2.c [2021-03-25 17:34:55,695 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-25 17:34:55,695 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-25 17:34:55,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/349b5ca65/f9af58b532d144eca4f5d7002867acf9/FLAG9dee63d2b [2021-03-25 17:34:55,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/349b5ca65/f9af58b532d144eca4f5d7002867acf9 [2021-03-25 17:34:55,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 17:34:55,949 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 17:34:55,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 17:34:55,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 17:34:55,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 17:34:55,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:34:55" (1/1) ... [2021-03-25 17:34:55,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf00dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:55, skipping insertion in model container [2021-03-25 17:34:55,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:34:55" (1/1) ... [2021-03-25 17:34:55,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 17:34:55,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 17:34:56,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 17:34:56,135 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 17:34:56,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 17:34:56,169 INFO L208 MainTranslator]: Completed translation [2021-03-25 17:34:56,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56 WrapperNode [2021-03-25 17:34:56,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 17:34:56,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 17:34:56,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 17:34:56,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 17:34:56,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56" (1/1) ... [2021-03-25 17:34:56,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56" (1/1) ... [2021-03-25 17:34:56,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 17:34:56,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 17:34:56,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 17:34:56,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 17:34:56,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56" (1/1) ... [2021-03-25 17:34:56,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56" (1/1) ... [2021-03-25 17:34:56,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56" (1/1) ... [2021-03-25 17:34:56,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56" (1/1) ... [2021-03-25 17:34:56,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56" (1/1) ... [2021-03-25 17:34:56,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56" (1/1) ... [2021-03-25 17:34:56,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56" (1/1) ... [2021-03-25 17:34:56,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 17:34:56,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 17:34:56,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 17:34:56,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 17:34:56,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56" (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 [2021-03-25 17:34:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 17:34:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2021-03-25 17:34:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2021-03-25 17:34:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 17:34:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 17:34:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 17:34:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 17:34:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 17:34:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2021-03-25 17:34:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2021-03-25 17:34:56,322 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 17:34:56,511 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 17:34:56,512 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-25 17:34:56,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:34:56 BoogieIcfgContainer [2021-03-25 17:34:56,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 17:34:56,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 17:34:56,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 17:34:56,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 17:34:56,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:34:55" (1/3) ... [2021-03-25 17:34:56,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f77397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:34:56, skipping insertion in model container [2021-03-25 17:34:56,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:34:56" (2/3) ... [2021-03-25 17:34:56,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f77397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:34:56, skipping insertion in model container [2021-03-25 17:34:56,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:34:56" (3/3) ... [2021-03-25 17:34:56,519 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest2.c [2021-03-25 17:34:56,536 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 17:34:56,540 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 17:34:56,540 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 17:34:56,575 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,575 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,575 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,575 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,576 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,576 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,576 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,576 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,576 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,576 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,577 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,577 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,577 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,577 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,577 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,577 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,577 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,578 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,578 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,578 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,578 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,578 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,578 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,579 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,579 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,579 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,579 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,579 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,579 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,580 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,580 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,580 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,580 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,580 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,580 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,580 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,582 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,582 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,582 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,583 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,583 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,601 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,602 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,602 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,602 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,602 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:34:56,606 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-25 17:34:56,638 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 17:34:56,672 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 17:34:56,673 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 17:34:56,673 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 17:34:56,673 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 17:34:56,673 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 17:34:56,673 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 17:34:56,673 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 17:34:56,673 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 17:34:56,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 42 transitions, 100 flow [2021-03-25 17:34:56,722 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-03-25 17:34:56,723 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 17:34:56,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 0/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 17:34:56,729 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 42 transitions, 100 flow [2021-03-25 17:34:56,739 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 32 transitions, 76 flow [2021-03-25 17:34:56,740 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 17:34:56,750 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 32 transitions, 76 flow [2021-03-25 17:34:56,755 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 32 transitions, 76 flow [2021-03-25 17:34:56,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 76 flow [2021-03-25 17:34:56,781 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-25 17:34:56,782 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 17:34:56,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 35 events. 0/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 17:34:56,785 INFO L142 LiptonReduction]: Number of co-enabled transitions 252 [2021-03-25 17:34:57,320 INFO L154 LiptonReduction]: Checked pairs total: 274 [2021-03-25 17:34:57,320 INFO L156 LiptonReduction]: Total number of compositions: 16 [2021-03-25 17:34:57,322 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 583 [2021-03-25 17:34:57,330 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-25 17:34:57,330 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 17:34:57,331 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 17:34:57,331 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 17:34:57,331 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 17:34:57,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 17:34:57,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1869431398, now seen corresponding path program 1 times [2021-03-25 17:34:57,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 17:34:57,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741800333] [2021-03-25 17:34:57,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 17:34:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 17:34:57,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:57,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 17:34:57,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:57,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 17:34:57,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 17:34:57,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741800333] [2021-03-25 17:34:57,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 17:34:57,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 17:34:57,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976353899] [2021-03-25 17:34:57,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 17:34:57,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 17:34:57,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 17:34:57,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 17:34:57,477 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 58 [2021-03-25 17:34:57,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-03-25 17:34:57,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 17:34:57,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 58 [2021-03-25 17:34:57,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 17:34:57,505 INFO L129 PetriNetUnfolder]: 6/42 cut-off events. [2021-03-25 17:34:57,505 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-25 17:34:57,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 42 events. 6/42 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 106 event pairs, 4 based on Foata normal form. 6/45 useless extension candidates. Maximal degree in co-relation 53. Up to 18 conditions per place. [2021-03-25 17:34:57,507 INFO L132 encePairwiseOnDemand]: 54/58 looper letters, 8 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2021-03-25 17:34:57,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 74 flow [2021-03-25 17:34:57,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 17:34:57,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 17:34:57,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2021-03-25 17:34:57,517 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7758620689655172 [2021-03-25 17:34:57,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 135 transitions. [2021-03-25 17:34:57,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 135 transitions. [2021-03-25 17:34:57,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 17:34:57,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 135 transitions. [2021-03-25 17:34:57,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2021-03-25 17:34:57,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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) [2021-03-25 17:34:57,527 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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) [2021-03-25 17:34:57,528 INFO L185 Difference]: Start difference. First operand has 22 places, 16 transitions, 44 flow. Second operand 3 states and 135 transitions. [2021-03-25 17:34:57,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 74 flow [2021-03-25 17:34:57,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 66 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 17:34:57,532 INFO L241 Difference]: Finished difference. Result has 21 places, 18 transitions, 55 flow [2021-03-25 17:34:57,534 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=55, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2021-03-25 17:34:57,534 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, -1 predicate places. [2021-03-25 17:34:57,534 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 17:34:57,535 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 18 transitions, 55 flow [2021-03-25 17:34:57,535 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 18 transitions, 55 flow [2021-03-25 17:34:57,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 18 transitions, 55 flow [2021-03-25 17:34:57,540 INFO L129 PetriNetUnfolder]: 1/28 cut-off events. [2021-03-25 17:34:57,540 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 17:34:57,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 28 events. 1/28 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 1 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 24. Up to 9 conditions per place. [2021-03-25 17:34:57,540 INFO L142 LiptonReduction]: Number of co-enabled transitions 64 [2021-03-25 17:34:57,777 INFO L154 LiptonReduction]: Checked pairs total: 23 [2021-03-25 17:34:57,778 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 17:34:57,778 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 244 [2021-03-25 17:34:57,779 INFO L480 AbstractCegarLoop]: Abstraction has has 19 places, 16 transitions, 51 flow [2021-03-25 17:34:57,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-03-25 17:34:57,779 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 17:34:57,779 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 17:34:57,779 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 17:34:57,780 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 17:34:57,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 17:34:57,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1799301255, now seen corresponding path program 1 times [2021-03-25 17:34:57,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 17:34:57,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063862884] [2021-03-25 17:34:57,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 17:34:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 17:34:57,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:57,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 17:34:57,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:57,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 17:34:57,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:57,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 17:34:57,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:57,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 17:34:57,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:57,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 17:34:57,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:57,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 17:34:57,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 17:34:57,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063862884] [2021-03-25 17:34:57,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 17:34:57,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 17:34:57,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306430881] [2021-03-25 17:34:57,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 17:34:57,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 17:34:57,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 17:34:57,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-25 17:34:57,844 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 62 [2021-03-25 17:34:57,844 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 16 transitions, 51 flow. Second operand has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 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) [2021-03-25 17:34:57,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 17:34:57,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 62 [2021-03-25 17:34:57,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 17:34:57,917 INFO L129 PetriNetUnfolder]: 10/51 cut-off events. [2021-03-25 17:34:57,917 INFO L130 PetriNetUnfolder]: For 26/29 co-relation queries the response was YES. [2021-03-25 17:34:57,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 51 events. 10/51 cut-off events. For 26/29 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 159 event pairs, 5 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 73. Up to 31 conditions per place. [2021-03-25 17:34:57,918 INFO L132 encePairwiseOnDemand]: 55/62 looper letters, 10 selfloop transitions, 6 changer transitions 5/26 dead transitions. [2021-03-25 17:34:57,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 26 transitions, 135 flow [2021-03-25 17:34:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 17:34:57,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 17:34:57,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 260 transitions. [2021-03-25 17:34:57,921 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5990783410138248 [2021-03-25 17:34:57,921 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 260 transitions. [2021-03-25 17:34:57,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 260 transitions. [2021-03-25 17:34:57,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 17:34:57,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 260 transitions. [2021-03-25 17:34:57,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 37.142857142857146) internal successors, (260), 7 states have internal predecessors, (260), 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) [2021-03-25 17:34:57,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 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) [2021-03-25 17:34:57,925 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 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) [2021-03-25 17:34:57,925 INFO L185 Difference]: Start difference. First operand has 19 places, 16 transitions, 51 flow. Second operand 7 states and 260 transitions. [2021-03-25 17:34:57,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 26 transitions, 135 flow [2021-03-25 17:34:57,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 26 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 17:34:57,926 INFO L241 Difference]: Finished difference. Result has 29 places, 20 transitions, 95 flow [2021-03-25 17:34:57,926 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=95, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2021-03-25 17:34:57,927 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 7 predicate places. [2021-03-25 17:34:57,927 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 17:34:57,927 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 20 transitions, 95 flow [2021-03-25 17:34:57,928 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 20 transitions, 95 flow [2021-03-25 17:34:57,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 20 transitions, 95 flow [2021-03-25 17:34:57,932 INFO L129 PetriNetUnfolder]: 4/35 cut-off events. [2021-03-25 17:34:57,933 INFO L130 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2021-03-25 17:34:57,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 35 events. 4/35 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 2 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 80. Up to 13 conditions per place. [2021-03-25 17:34:57,933 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-25 17:34:57,984 INFO L154 LiptonReduction]: Checked pairs total: 11 [2021-03-25 17:34:57,984 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 17:34:57,984 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 17:34:57,985 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 96 flow [2021-03-25 17:34:57,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 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) [2021-03-25 17:34:57,986 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 17:34:57,986 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 17:34:57,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 17:34:57,986 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 17:34:57,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 17:34:57,986 INFO L82 PathProgramCache]: Analyzing trace with hash 245037389, now seen corresponding path program 1 times [2021-03-25 17:34:57,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 17:34:57,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219456800] [2021-03-25 17:34:57,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 17:34:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 17:34:58,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 17:34:58,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 17:34:58,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 17:34:58,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 17:34:58,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 17:34:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 17:34:58,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219456800] [2021-03-25 17:34:58,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 17:34:58,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 17:34:58,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448453028] [2021-03-25 17:34:58,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 17:34:58,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 17:34:58,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 17:34:58,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 17:34:58,064 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 64 [2021-03-25 17:34:58,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 96 flow. Second operand has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2021-03-25 17:34:58,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 17:34:58,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 64 [2021-03-25 17:34:58,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 17:34:58,097 INFO L129 PetriNetUnfolder]: 4/29 cut-off events. [2021-03-25 17:34:58,098 INFO L130 PetriNetUnfolder]: For 22/29 co-relation queries the response was YES. [2021-03-25 17:34:58,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 29 events. 4/29 cut-off events. For 22/29 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 62 event pairs, 2 based on Foata normal form. 7/35 useless extension candidates. Maximal degree in co-relation 80. Up to 12 conditions per place. [2021-03-25 17:34:58,098 INFO L132 encePairwiseOnDemand]: 59/64 looper letters, 2 selfloop transitions, 4 changer transitions 3/18 dead transitions. [2021-03-25 17:34:58,098 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 18 transitions, 101 flow [2021-03-25 17:34:58,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 17:34:58,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 17:34:58,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 212 transitions. [2021-03-25 17:34:58,100 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6625 [2021-03-25 17:34:58,100 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 212 transitions. [2021-03-25 17:34:58,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 212 transitions. [2021-03-25 17:34:58,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 17:34:58,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 212 transitions. [2021-03-25 17:34:58,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 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) [2021-03-25 17:34:58,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 64.0) internal successors, (384), 6 states have internal predecessors, (384), 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) [2021-03-25 17:34:58,102 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 64.0) internal successors, (384), 6 states have internal predecessors, (384), 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) [2021-03-25 17:34:58,103 INFO L185 Difference]: Start difference. First operand has 26 places, 20 transitions, 96 flow. Second operand 5 states and 212 transitions. [2021-03-25 17:34:58,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 18 transitions, 101 flow [2021-03-25 17:34:58,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 87 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-25 17:34:58,104 INFO L241 Difference]: Finished difference. Result has 26 places, 15 transitions, 67 flow [2021-03-25 17:34:58,104 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=67, PETRI_PLACES=26, PETRI_TRANSITIONS=15} [2021-03-25 17:34:58,104 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2021-03-25 17:34:58,105 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 17:34:58,105 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 15 transitions, 67 flow [2021-03-25 17:34:58,105 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 15 transitions, 67 flow [2021-03-25 17:34:58,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 15 transitions, 67 flow [2021-03-25 17:34:58,108 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-03-25 17:34:58,108 INFO L130 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2021-03-25 17:34:58,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 19 events. 1/19 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 23 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 16. Up to 6 conditions per place. [2021-03-25 17:34:58,108 INFO L142 LiptonReduction]: Number of co-enabled transitions 28 [2021-03-25 17:34:58,179 INFO L154 LiptonReduction]: Checked pairs total: 7 [2021-03-25 17:34:58,179 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 17:34:58,180 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-25 17:34:58,181 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 65 flow [2021-03-25 17:34:58,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2021-03-25 17:34:58,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 17:34:58,182 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 17:34:58,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 17:34:58,182 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 17:34:58,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 17:34:58,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1210908564, now seen corresponding path program 1 times [2021-03-25 17:34:58,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 17:34:58,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655359086] [2021-03-25 17:34:58,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 17:34:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 17:34:58,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 17:34:58,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 17:34:58,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 17:34:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 17:34:58,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655359086] [2021-03-25 17:34:58,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 17:34:58,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 17:34:58,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35987514] [2021-03-25 17:34:58,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 17:34:58,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 17:34:58,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 17:34:58,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 17:34:58,224 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 66 [2021-03-25 17:34:58,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 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) [2021-03-25 17:34:58,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 17:34:58,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 66 [2021-03-25 17:34:58,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 17:34:58,247 INFO L129 PetriNetUnfolder]: 1/20 cut-off events. [2021-03-25 17:34:58,247 INFO L130 PetriNetUnfolder]: For 23/29 co-relation queries the response was YES. [2021-03-25 17:34:58,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 20 events. 1/20 cut-off events. For 23/29 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 25. Up to 10 conditions per place. [2021-03-25 17:34:58,248 INFO L132 encePairwiseOnDemand]: 62/66 looper letters, 5 selfloop transitions, 2 changer transitions 3/15 dead transitions. [2021-03-25 17:34:58,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 15 transitions, 89 flow [2021-03-25 17:34:58,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 17:34:58,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 17:34:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 175 transitions. [2021-03-25 17:34:58,250 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6628787878787878 [2021-03-25 17:34:58,250 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 175 transitions. [2021-03-25 17:34:58,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 175 transitions. [2021-03-25 17:34:58,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 17:34:58,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 175 transitions. [2021-03-25 17:34:58,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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) [2021-03-25 17:34:58,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 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) [2021-03-25 17:34:58,254 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 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) [2021-03-25 17:34:58,254 INFO L185 Difference]: Start difference. First operand has 24 places, 14 transitions, 65 flow. Second operand 4 states and 175 transitions. [2021-03-25 17:34:58,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 15 transitions, 89 flow [2021-03-25 17:34:58,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 75 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-25 17:34:58,259 INFO L241 Difference]: Finished difference. Result has 23 places, 12 transitions, 47 flow [2021-03-25 17:34:58,259 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=47, PETRI_PLACES=23, PETRI_TRANSITIONS=12} [2021-03-25 17:34:58,259 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2021-03-25 17:34:58,260 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 17:34:58,260 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 12 transitions, 47 flow [2021-03-25 17:34:58,260 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 12 transitions, 47 flow [2021-03-25 17:34:58,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 12 transitions, 47 flow [2021-03-25 17:34:58,263 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-25 17:34:58,263 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 17:34:58,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 13 events. 0/13 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 4 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-25 17:34:58,264 INFO L142 LiptonReduction]: Number of co-enabled transitions 10 [2021-03-25 17:34:58,266 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 17:34:58,266 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 17:34:58,266 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-25 17:34:58,267 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 12 transitions, 47 flow [2021-03-25 17:34:58,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 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) [2021-03-25 17:34:58,268 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 17:34:58,268 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 17:34:58,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 17:34:58,269 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 17:34:58,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 17:34:58,269 INFO L82 PathProgramCache]: Analyzing trace with hash -573853194, now seen corresponding path program 1 times [2021-03-25 17:34:58,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 17:34:58,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934610571] [2021-03-25 17:34:58,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 17:34:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 17:34:58,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 17:34:58,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 17:34:58,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 17:34:58,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 17:34:58,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 17:34:58,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:34:58,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 17:34:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 17:34:58,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934610571] [2021-03-25 17:34:58,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 17:34:58,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 17:34:58,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904690875] [2021-03-25 17:34:58,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 17:34:58,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 17:34:58,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 17:34:58,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-25 17:34:58,362 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 66 [2021-03-25 17:34:58,363 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 12 transitions, 47 flow. Second operand has 8 states, 8 states have (on average 35.125) internal successors, (281), 8 states have internal predecessors, (281), 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) [2021-03-25 17:34:58,363 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 17:34:58,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 66 [2021-03-25 17:34:58,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 17:34:58,429 INFO L129 PetriNetUnfolder]: 1/14 cut-off events. [2021-03-25 17:34:58,429 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 17:34:58,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 14 events. 1/14 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 38. Up to 5 conditions per place. [2021-03-25 17:34:58,430 INFO L132 encePairwiseOnDemand]: 59/66 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2021-03-25 17:34:58,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 13 transitions, 68 flow [2021-03-25 17:34:58,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 17:34:58,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 17:34:58,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 283 transitions. [2021-03-25 17:34:58,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5359848484848485 [2021-03-25 17:34:58,432 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 283 transitions. [2021-03-25 17:34:58,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 283 transitions. [2021-03-25 17:34:58,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 17:34:58,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 283 transitions. [2021-03-25 17:34:58,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 35.375) internal successors, (283), 8 states have internal predecessors, (283), 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) [2021-03-25 17:34:58,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 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) [2021-03-25 17:34:58,437 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 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) [2021-03-25 17:34:58,438 INFO L185 Difference]: Start difference. First operand has 22 places, 12 transitions, 47 flow. Second operand 8 states and 283 transitions. [2021-03-25 17:34:58,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 13 transitions, 68 flow [2021-03-25 17:34:58,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 13 transitions, 57 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-25 17:34:58,439 INFO L241 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2021-03-25 17:34:58,439 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2021-03-25 17:34:58,439 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2021-03-25 17:34:58,439 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 17:34:58,439 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 0 transitions, 0 flow [2021-03-25 17:34:58,439 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 0 transitions, 0 flow [2021-03-25 17:34:58,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 17:34:58,440 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 17:34:58,440 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 17:34:58,440 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. [2021-03-25 17:34:58,440 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 17:34:58,440 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 17:34:58,440 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 17:34:58,440 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 17:34:58,442 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 17:34:58,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 35.125) internal successors, (281), 8 states have internal predecessors, (281), 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) [2021-03-25 17:34:58,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 17:34:58,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:34:58 BasicIcfg [2021-03-25 17:34:58,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 17:34:58,450 INFO L168 Benchmark]: Toolchain (without parser) took 2498.28 ms. Allocated memory was 255.9 MB in the beginning and 396.4 MB in the end (delta: 140.5 MB). Free memory was 233.4 MB in the beginning and 292.0 MB in the end (delta: -58.6 MB). Peak memory consumption was 81.3 MB. Max. memory is 16.0 GB. [2021-03-25 17:34:58,450 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 17:34:58,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.51 ms. Allocated memory was 255.9 MB in the beginning and 396.4 MB in the end (delta: 140.5 MB). Free memory was 233.0 MB in the beginning and 381.4 MB in the end (delta: -148.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-25 17:34:58,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.48 ms. Allocated memory is still 396.4 MB. Free memory was 381.4 MB in the beginning and 379.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 17:34:58,460 INFO L168 Benchmark]: Boogie Preprocessor took 24.40 ms. Allocated memory is still 396.4 MB. Free memory was 379.6 MB in the beginning and 378.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 17:34:58,461 INFO L168 Benchmark]: RCFGBuilder took 262.95 ms. Allocated memory is still 396.4 MB. Free memory was 378.6 MB in the beginning and 364.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-25 17:34:58,461 INFO L168 Benchmark]: TraceAbstraction took 1932.25 ms. Allocated memory is still 396.4 MB. Free memory was 364.3 MB in the beginning and 292.0 MB in the end (delta: 72.3 MB). Peak memory consumption was 73.9 MB. Max. memory is 16.0 GB. [2021-03-25 17:34:58,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 220.51 ms. Allocated memory was 255.9 MB in the beginning and 396.4 MB in the end (delta: 140.5 MB). Free memory was 233.0 MB in the beginning and 381.4 MB in the end (delta: -148.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.48 ms. Allocated memory is still 396.4 MB. Free memory was 381.4 MB in the beginning and 379.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 24.40 ms. Allocated memory is still 396.4 MB. Free memory was 379.6 MB in the beginning and 378.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 262.95 ms. Allocated memory is still 396.4 MB. Free memory was 378.6 MB in the beginning and 364.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1932.25 ms. Allocated memory is still 396.4 MB. Free memory was 364.3 MB in the beginning and 292.0 MB in the end (delta: 72.3 MB). Peak memory consumption was 73.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 566.0ms, 38 PlacesBefore, 22 PlacesAfterwards, 32 TransitionsBefore, 16 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 16 TotalNumberOfCompositions, 274 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 214, positive: 195, positive conditional: 0, positive unconditional: 195, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 148, positive: 136, positive conditional: 0, positive unconditional: 136, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 148, positive: 136, positive conditional: 0, positive unconditional: 136, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 148, positive: 136, positive conditional: 0, positive unconditional: 136, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 43, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 214, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 148, unknown conditional: 0, unknown unconditional: 148] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 242.5ms, 21 PlacesBefore, 19 PlacesAfterwards, 18 TransitionsBefore, 16 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 0, positive unconditional: 23, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 23, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.6ms, 29 PlacesBefore, 26 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 11 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.5ms, 26 PlacesBefore, 24 PlacesAfterwards, 15 TransitionsBefore, 14 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 7 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3ms, 23 PlacesBefore, 22 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 10 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): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 24 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): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 37]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1774.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 301.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 653.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 34 SDtfs, 19 SDslu, 18 SDs, 0 SdLazy, 140 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 139.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=2, InterpolantAutomatonStates: 27, 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: 15.7ms SsaConstructionTime, 57.3ms SatisfiabilityAnalysisTime, 233.9ms InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...