/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/forkForkSimple.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 03:19:48,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 03:19:48,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 03:19:48,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 03:19:48,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 03:19:48,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 03:19:48,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 03:19:48,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 03:19:48,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 03:19:48,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 03:19:48,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 03:19:48,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 03:19:48,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 03:19:48,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 03:19:48,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 03:19:48,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 03:19:48,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 03:19:48,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 03:19:48,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 03:19:48,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 03:19:48,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 03:19:48,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 03:19:48,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 03:19:48,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 03:19:48,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 03:19:48,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 03:19:48,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 03:19:48,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 03:19:48,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 03:19:48,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 03:19:48,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 03:19:48,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 03:19:48,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 03:19:48,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 03:19:48,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 03:19:48,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 03:19:48,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 03:19:48,670 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 03:19:48,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 03:19:48,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 03:19:48,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 03:19:48,674 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 03:19:48,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 03:19:48,674 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 03:19:48,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 03:19:48,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 03:19:48,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 03:19:48,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 03:19:48,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 03:19:48,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 03:19:48,676 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 03:19:48,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 03:19:48,677 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 03:19:48,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 03:19:48,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 03:19:48,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 03:19:48,677 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 03:19:48,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 03:19:48,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 03:19:48,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 03:19:48,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 03:19:48,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 03:19:48,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 03:19:48,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 03:19:48,679 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 03:19:48,679 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 03:19:48,679 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 03:19:48,679 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 03:19:48,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 03:19:49,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 03:19:49,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 03:19:49,013 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 03:19:49,013 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 03:19:49,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/forkForkSimple.c [2021-03-26 03:19:49,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c632dc6e/f4da7ffa674c4da79ab75af798e67a16/FLAGcd37a6265 [2021-03-26 03:19:49,546 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 03:19:49,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/forkForkSimple.c [2021-03-26 03:19:49,547 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-26 03:19:49,547 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-26 03:19:49,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c632dc6e/f4da7ffa674c4da79ab75af798e67a16/FLAGcd37a6265 [2021-03-26 03:19:49,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c632dc6e/f4da7ffa674c4da79ab75af798e67a16 [2021-03-26 03:19:49,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 03:19:49,952 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 03:19:49,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 03:19:49,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 03:19:49,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 03:19:49,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 03:19:49" (1/1) ... [2021-03-26 03:19:49,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27dcf212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:49, skipping insertion in model container [2021-03-26 03:19:49,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 03:19:49" (1/1) ... [2021-03-26 03:19:49,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 03:19:49,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 03:19:50,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 03:19:50,113 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 03:19:50,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 03:19:50,133 INFO L208 MainTranslator]: Completed translation [2021-03-26 03:19:50,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50 WrapperNode [2021-03-26 03:19:50,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 03:19:50,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 03:19:50,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 03:19:50,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 03:19:50,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50" (1/1) ... [2021-03-26 03:19:50,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50" (1/1) ... [2021-03-26 03:19:50,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 03:19:50,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 03:19:50,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 03:19:50,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 03:19:50,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50" (1/1) ... [2021-03-26 03:19:50,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50" (1/1) ... [2021-03-26 03:19:50,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50" (1/1) ... [2021-03-26 03:19:50,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50" (1/1) ... [2021-03-26 03:19:50,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50" (1/1) ... [2021-03-26 03:19:50,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50" (1/1) ... [2021-03-26 03:19:50,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50" (1/1) ... [2021-03-26 03:19:50,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 03:19:50,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 03:19:50,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 03:19:50,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 03:19:50,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50" (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 [2021-03-26 03:19:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 03:19:50,249 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-03-26 03:19:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-03-26 03:19:50,249 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-26 03:19:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-26 03:19:50,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 03:19:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 03:19:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-26 03:19:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 03:19:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 03:19:50,252 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 03:19:50,492 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 03:19:50,492 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-26 03:19:50,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:19:50 BoogieIcfgContainer [2021-03-26 03:19:50,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 03:19:50,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 03:19:50,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 03:19:50,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 03:19:50,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 03:19:49" (1/3) ... [2021-03-26 03:19:50,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c62f377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 03:19:50, skipping insertion in model container [2021-03-26 03:19:50,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:50" (2/3) ... [2021-03-26 03:19:50,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c62f377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 03:19:50, skipping insertion in model container [2021-03-26 03:19:50,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:19:50" (3/3) ... [2021-03-26 03:19:50,500 INFO L111 eAbstractionObserver]: Analyzing ICFG forkForkSimple.c [2021-03-26 03:19:50,504 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 03:19:50,507 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 03:19:50,508 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 03:19:50,530 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,531 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,531 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,531 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,531 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,531 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,532 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,532 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,532 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,532 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,532 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,532 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,533 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,533 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,533 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,533 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,533 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,533 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,534 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,534 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,534 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,534 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,534 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,534 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,535 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,535 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,535 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,535 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,535 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,536 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,536 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,536 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,536 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,536 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,536 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,536 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,537 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,537 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,537 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,538 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,538 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,538 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,538 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,538 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,538 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,539 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,539 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,539 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,541 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,541 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,541 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,541 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,545 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,545 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,546 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,546 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,546 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,546 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,546 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,546 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,549 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,549 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,549 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,549 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:50,559 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-03-26 03:19:50,577 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 03:19:50,596 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 03:19:50,596 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 03:19:50,596 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 03:19:50,596 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 03:19:50,596 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 03:19:50,596 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 03:19:50,597 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 03:19:50,597 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 03:19:50,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 41 transitions, 101 flow [2021-03-26 03:19:50,626 INFO L129 PetriNetUnfolder]: 1/33 cut-off events. [2021-03-26 03:19:50,626 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 03:19:50,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 33 events. 1/33 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2021-03-26 03:19:50,629 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 41 transitions, 101 flow [2021-03-26 03:19:50,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 33 transitions, 78 flow [2021-03-26 03:19:50,634 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:19:50,645 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 33 transitions, 78 flow [2021-03-26 03:19:50,648 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 33 transitions, 78 flow [2021-03-26 03:19:50,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 78 flow [2021-03-26 03:19:50,656 INFO L129 PetriNetUnfolder]: 1/33 cut-off events. [2021-03-26 03:19:50,657 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 03:19:50,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 33 events. 1/33 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2021-03-26 03:19:50,659 INFO L142 LiptonReduction]: Number of co-enabled transitions 268 [2021-03-26 03:19:51,604 INFO L154 LiptonReduction]: Checked pairs total: 142 [2021-03-26 03:19:51,604 INFO L156 LiptonReduction]: Total number of compositions: 21 [2021-03-26 03:19:51,606 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 973 [2021-03-26 03:19:51,613 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 03:19:51,614 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:19:51,614 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:19:51,614 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-03-26 03:19:51,615 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, fooErr0INUSE_VIOLATION, fooThread1of1ForFork1Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:19:51,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:19:51,619 INFO L82 PathProgramCache]: Analyzing trace with hash 141092, now seen corresponding path program 1 times [2021-03-26 03:19:51,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:19:51,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836778614] [2021-03-26 03:19:51,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:19:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:19:51,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:19:51,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 03:19:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:19:51,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836778614] [2021-03-26 03:19:51,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:19:51,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 03:19:51,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793854338] [2021-03-26 03:19:51,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 03:19:51,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:19:51,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 03:19:51,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 03:19:51,759 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 65 [2021-03-26 03:19:51,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-03-26 03:19:51,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:19:51,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 65 [2021-03-26 03:19:51,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:19:51,772 INFO L129 PetriNetUnfolder]: 1/12 cut-off events. [2021-03-26 03:19:51,772 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 03:19:51,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 12 events. 1/12 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 15. Up to 3 conditions per place. [2021-03-26 03:19:51,773 INFO L132 encePairwiseOnDemand]: 63/65 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2021-03-26 03:19:51,773 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 12 transitions, 40 flow [2021-03-26 03:19:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 03:19:51,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 03:19:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 162 transitions. [2021-03-26 03:19:51,785 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8307692307692308 [2021-03-26 03:19:51,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 162 transitions. [2021-03-26 03:19:51,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 162 transitions. [2021-03-26 03:19:51,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:19:51,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 162 transitions. [2021-03-26 03:19:51,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2021-03-26 03:19:51,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 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) [2021-03-26 03:19:51,795 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 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) [2021-03-26 03:19:51,796 INFO L185 Difference]: Start difference. First operand has 19 places, 13 transitions, 38 flow. Second operand 3 states and 162 transitions. [2021-03-26 03:19:51,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 12 transitions, 40 flow [2021-03-26 03:19:51,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 12 transitions, 33 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 03:19:51,800 INFO L241 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2021-03-26 03:19:51,801 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2021-03-26 03:19:51,802 INFO L343 CegarLoopForPetriNet]: 19 programPoint places, -2 predicate places. [2021-03-26 03:19:51,802 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:19:51,802 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 0 transitions, 0 flow [2021-03-26 03:19:51,803 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 0 transitions, 0 flow [2021-03-26 03:19:51,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 03:19:51,803 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 03:19:51,803 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:19:51,803 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. [2021-03-26 03:19:51,803 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 03:19:51,804 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:19:51,804 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:19:51,804 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-26 03:19:51,805 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 03:19:51,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-03-26 03:19:51,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 03:19:51,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 03:19:51 BasicIcfg [2021-03-26 03:19:51,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 03:19:51,811 INFO L168 Benchmark]: Toolchain (without parser) took 1857.77 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 232.8 MB in the beginning and 254.6 MB in the end (delta: -21.8 MB). Peak memory consumption was 81.6 MB. Max. memory is 16.0 GB. [2021-03-26 03:19:51,811 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 03:19:51,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.45 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 232.8 MB in the beginning and 343.6 MB in the end (delta: -110.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-26 03:19:51,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.64 ms. Allocated memory is still 360.7 MB. Free memory was 343.6 MB in the beginning and 342.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 03:19:51,813 INFO L168 Benchmark]: Boogie Preprocessor took 20.87 ms. Allocated memory is still 360.7 MB. Free memory was 342.2 MB in the beginning and 341.2 MB in the end (delta: 973.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 03:19:51,813 INFO L168 Benchmark]: RCFGBuilder took 311.25 ms. Allocated memory is still 360.7 MB. Free memory was 341.2 MB in the beginning and 328.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-26 03:19:51,814 INFO L168 Benchmark]: TraceAbstraction took 1314.57 ms. Allocated memory is still 360.7 MB. Free memory was 328.2 MB in the beginning and 254.6 MB in the end (delta: 73.7 MB). Peak memory consumption was 75.1 MB. Max. memory is 16.0 GB. [2021-03-26 03:19:51,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 180.45 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 232.8 MB in the beginning and 343.6 MB in the end (delta: -110.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.64 ms. Allocated memory is still 360.7 MB. Free memory was 343.6 MB in the beginning and 342.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.87 ms. Allocated memory is still 360.7 MB. Free memory was 342.2 MB in the beginning and 341.2 MB in the end (delta: 973.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 311.25 ms. Allocated memory is still 360.7 MB. Free memory was 341.2 MB in the beginning and 328.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1314.57 ms. Allocated memory is still 360.7 MB. Free memory was 328.2 MB in the beginning and 254.6 MB in the end (delta: 73.7 MB). Peak memory consumption was 75.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 957.0ms, 39 PlacesBefore, 19 PlacesAfterwards, 33 TransitionsBefore, 13 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 21 TotalNumberOfCompositions, 142 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 137, positive: 136, positive conditional: 136, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 128, positive: 127, positive conditional: 0, positive unconditional: 127, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 128, positive: 127, positive conditional: 0, positive unconditional: 127, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 128, positive: 125, positive conditional: 0, positive unconditional: 125, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 32, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 137, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 128, unknown conditional: 128, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0ms, 17 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 31]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1214.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 47.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1015.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 3, 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: 6.4ms SsaConstructionTime, 12.5ms SatisfiabilityAnalysisTime, 38.8ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...