/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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 13:14:01,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 13:14:01,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 13:14:01,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 13:14:01,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 13:14:01,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 13:14:01,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 13:14:01,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 13:14:01,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 13:14:01,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 13:14:01,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 13:14:01,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 13:14:01,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 13:14:01,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 13:14:01,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 13:14:01,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 13:14:01,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 13:14:01,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 13:14:01,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 13:14:01,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 13:14:01,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 13:14:01,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 13:14:01,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 13:14:01,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 13:14:01,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 13:14:01,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 13:14:01,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 13:14:01,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 13:14:01,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 13:14:01,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 13:14:01,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 13:14:01,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 13:14:01,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 13:14:01,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 13:14:01,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 13:14:01,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 13:14:01,619 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-VariableLbe.epf [2021-03-24 13:14:01,656 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 13:14:01,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 13:14:01,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 13:14:01,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 13:14:01,660 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 13:14:01,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 13:14:01,660 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 13:14:01,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 13:14:01,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 13:14:01,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 13:14:01,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 13:14:01,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 13:14:01,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 13:14:01,662 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 13:14:01,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 13:14:01,662 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 13:14:01,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 13:14:01,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 13:14:01,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 13:14:01,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 13:14:01,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 13:14:01,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 13:14:01,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 13:14:01,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 13:14:01,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 13:14:01,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 13:14:01,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 13:14:01,664 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 13:14:01,664 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 13:14:01,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 13:14:01,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 13:14:01,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 13:14:01,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 13:14:01,989 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 13:14:01,989 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 13:14:01,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2021-03-24 13:14:02,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cfd53bb0/e8cca468043c42ba881d62c0163bf9c1/FLAG269ea6698 [2021-03-24 13:14:02,468 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 13:14:02,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2021-03-24 13:14:02,469 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-24 13:14:02,469 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-24 13:14:02,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cfd53bb0/e8cca468043c42ba881d62c0163bf9c1/FLAG269ea6698 [2021-03-24 13:14:02,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cfd53bb0/e8cca468043c42ba881d62c0163bf9c1 [2021-03-24 13:14:02,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 13:14:02,525 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 13:14:02,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 13:14:02,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 13:14:02,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 13:14:02,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 01:14:02" (1/1) ... [2021-03-24 13:14:02,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46397694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02, skipping insertion in model container [2021-03-24 13:14:02,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 01:14:02" (1/1) ... [2021-03-24 13:14:02,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 13:14:02,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 13:14:02,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 13:14:02,705 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 13:14:02,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 13:14:02,767 INFO L208 MainTranslator]: Completed translation [2021-03-24 13:14:02,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02 WrapperNode [2021-03-24 13:14:02,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 13:14:02,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 13:14:02,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 13:14:02,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 13:14:02,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02" (1/1) ... [2021-03-24 13:14:02,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02" (1/1) ... [2021-03-24 13:14:02,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 13:14:02,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 13:14:02,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 13:14:02,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 13:14:02,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02" (1/1) ... [2021-03-24 13:14:02,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02" (1/1) ... [2021-03-24 13:14:02,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02" (1/1) ... [2021-03-24 13:14:02,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02" (1/1) ... [2021-03-24 13:14:02,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02" (1/1) ... [2021-03-24 13:14:02,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02" (1/1) ... [2021-03-24 13:14:02,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02" (1/1) ... [2021-03-24 13:14:02,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 13:14:02,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 13:14:02,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 13:14:02,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 13:14:02,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02" (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 [2021-03-24 13:14:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 13:14:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2021-03-24 13:14:02,894 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2021-03-24 13:14:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 13:14:02,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 13:14:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 13:14:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 13:14:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 13:14:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2021-03-24 13:14:02,896 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2021-03-24 13:14:02,897 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 13:14:03,132 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 13:14:03,133 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-24 13:14:03,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:14:03 BoogieIcfgContainer [2021-03-24 13:14:03,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 13:14:03,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 13:14:03,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 13:14:03,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 13:14:03,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 01:14:02" (1/3) ... [2021-03-24 13:14:03,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27114930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 01:14:03, skipping insertion in model container [2021-03-24 13:14:03,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:14:02" (2/3) ... [2021-03-24 13:14:03,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27114930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 01:14:03, skipping insertion in model container [2021-03-24 13:14:03,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:14:03" (3/3) ... [2021-03-24 13:14:03,147 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest1.c [2021-03-24 13:14:03,152 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 13:14:03,155 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 13:14:03,156 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 13:14:03,204 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,204 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,205 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,205 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,205 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,205 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,205 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,206 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,206 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,206 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,206 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,206 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,207 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,207 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,207 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,207 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,207 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,208 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,208 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,208 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,208 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,208 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,209 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,209 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,209 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,209 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,209 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,209 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,210 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,210 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,210 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,210 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,210 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,211 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,211 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,211 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,213 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,213 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,213 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,214 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,214 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,233 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,233 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,234 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,234 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,234 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:14:03,244 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-24 13:14:03,257 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-24 13:14:03,277 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 13:14:03,277 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 13:14:03,277 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 13:14:03,278 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 13:14:03,278 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 13:14:03,278 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 13:14:03,278 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 13:14:03,278 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 13:14:03,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 42 transitions, 100 flow [2021-03-24 13:14:03,316 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-03-24 13:14:03,317 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-24 13:14:03,318 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. [2021-03-24 13:14:03,318 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 42 transitions, 100 flow [2021-03-24 13:14:03,321 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 32 transitions, 76 flow [2021-03-24 13:14:03,323 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 13:14:03,330 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 32 transitions, 76 flow [2021-03-24 13:14:03,333 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 32 transitions, 76 flow [2021-03-24 13:14:03,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 76 flow [2021-03-24 13:14:03,345 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-24 13:14:03,345 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-24 13:14:03,345 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 29 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. [2021-03-24 13:14:03,347 INFO L142 LiptonReduction]: Number of co-enabled transitions 252 [2021-03-24 13:14:04,307 INFO L154 LiptonReduction]: Checked pairs total: 244 [2021-03-24 13:14:04,308 INFO L156 LiptonReduction]: Total number of compositions: 17 [2021-03-24 13:14:04,310 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 988 [2021-03-24 13:14:04,325 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-03-24 13:14:04,325 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-24 13:14:04,325 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:14:04,327 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:14:04,327 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 13:14:04,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:14:04,333 INFO L82 PathProgramCache]: Analyzing trace with hash -71435164, now seen corresponding path program 1 times [2021-03-24 13:14:04,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:14:04,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242852756] [2021-03-24 13:14:04,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:14:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:14:04,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:14:04,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:14:04,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:14:04,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242852756] [2021-03-24 13:14:04,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:14:04,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 13:14:04,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303664247] [2021-03-24 13:14:04,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:14:04,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:14:04,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:14:04,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:14:04,544 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 59 [2021-03-24 13:14:04,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-03-24 13:14:04,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:14:04,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 59 [2021-03-24 13:14:04,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:14:04,607 INFO L129 PetriNetUnfolder]: 6/38 cut-off events. [2021-03-24 13:14:04,608 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-24 13:14:04,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 38 events. 6/38 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 4 based on Foata normal form. 6/42 useless extension candidates. Maximal degree in co-relation 50. Up to 19 conditions per place. [2021-03-24 13:14:04,613 INFO L132 encePairwiseOnDemand]: 55/59 looper letters, 9 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2021-03-24 13:14:04,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 19 transitions, 74 flow [2021-03-24 13:14:04,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:14:04,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:14:04,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 130 transitions. [2021-03-24 13:14:04,634 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7344632768361582 [2021-03-24 13:14:04,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 130 transitions. [2021-03-24 13:14:04,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 130 transitions. [2021-03-24 13:14:04,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:14:04,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 130 transitions. [2021-03-24 13:14:04,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-03-24 13:14:04,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2021-03-24 13:14:04,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2021-03-24 13:14:04,652 INFO L185 Difference]: Start difference. First operand has 21 places, 15 transitions, 42 flow. Second operand 3 states and 130 transitions. [2021-03-24 13:14:04,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 19 transitions, 74 flow [2021-03-24 13:14:04,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 19 transitions, 66 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 13:14:04,658 INFO L241 Difference]: Finished difference. Result has 20 places, 17 transitions, 53 flow [2021-03-24 13:14:04,660 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=20, PETRI_TRANSITIONS=17} [2021-03-24 13:14:04,660 INFO L343 CegarLoopForPetriNet]: 21 programPoint places, -1 predicate places. [2021-03-24 13:14:04,660 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 17 transitions, 53 flow [2021-03-24 13:14:04,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-03-24 13:14:04,661 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:14:04,661 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:14:04,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 13:14:04,661 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 13:14:04,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:14:04,662 INFO L82 PathProgramCache]: Analyzing trace with hash 684196891, now seen corresponding path program 1 times [2021-03-24 13:14:04,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:14:04,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572798108] [2021-03-24 13:14:04,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:14:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:14:04,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:14:04,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:14:04,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:14:04,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 13:14:04,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 13:14:04,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 13:14:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:14:04,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572798108] [2021-03-24 13:14:04,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:14:04,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 13:14:04,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783912008] [2021-03-24 13:14:04,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 13:14:04,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:14:04,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 13:14:04,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-24 13:14:04,787 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 59 [2021-03-24 13:14:04,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 17 transitions, 53 flow. Second operand has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 states have internal predecessors, (248), 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) [2021-03-24 13:14:04,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:14:04,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 59 [2021-03-24 13:14:04,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:14:04,920 INFO L129 PetriNetUnfolder]: 10/53 cut-off events. [2021-03-24 13:14:04,921 INFO L130 PetriNetUnfolder]: For 26/29 co-relation queries the response was YES. [2021-03-24 13:14:04,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 53 events. 10/53 cut-off events. For 26/29 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 162 event pairs, 5 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 74. Up to 31 conditions per place. [2021-03-24 13:14:04,921 INFO L132 encePairwiseOnDemand]: 53/59 looper letters, 11 selfloop transitions, 6 changer transitions 5/27 dead transitions. [2021-03-24 13:14:04,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 27 transitions, 139 flow [2021-03-24 13:14:04,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 13:14:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 13:14:04,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 258 transitions. [2021-03-24 13:14:04,926 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6246973365617433 [2021-03-24 13:14:04,926 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 258 transitions. [2021-03-24 13:14:04,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 258 transitions. [2021-03-24 13:14:04,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:14:04,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 258 transitions. [2021-03-24 13:14:04,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 36.857142857142854) internal successors, (258), 7 states have internal predecessors, (258), 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) [2021-03-24 13:14:04,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 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) [2021-03-24 13:14:04,929 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 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) [2021-03-24 13:14:04,929 INFO L185 Difference]: Start difference. First operand has 20 places, 17 transitions, 53 flow. Second operand 7 states and 258 transitions. [2021-03-24 13:14:04,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 27 transitions, 139 flow [2021-03-24 13:14:04,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 27 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:14:04,931 INFO L241 Difference]: Finished difference. Result has 29 places, 21 transitions, 94 flow [2021-03-24 13:14:04,931 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=94, PETRI_PLACES=29, PETRI_TRANSITIONS=21} [2021-03-24 13:14:04,932 INFO L343 CegarLoopForPetriNet]: 21 programPoint places, 8 predicate places. [2021-03-24 13:14:04,932 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 94 flow [2021-03-24 13:14:04,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 states have internal predecessors, (248), 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) [2021-03-24 13:14:04,932 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:14:04,932 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:14:04,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 13:14:04,933 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 13:14:04,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:14:04,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1026416417, now seen corresponding path program 2 times [2021-03-24 13:14:04,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:14:04,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423243778] [2021-03-24 13:14:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:14:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:14:04,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:14:04,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:14:04,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:14:04,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 13:14:04,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 13:14:04,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:04,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 13:14:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:14:04,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423243778] [2021-03-24 13:14:04,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:14:04,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 13:14:04,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177545601] [2021-03-24 13:14:04,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 13:14:04,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:14:04,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 13:14:04,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-24 13:14:04,999 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 59 [2021-03-24 13:14:04,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 94 flow. Second operand has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 states have internal predecessors, (248), 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) [2021-03-24 13:14:05,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:14:05,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 59 [2021-03-24 13:14:05,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:14:05,109 INFO L129 PetriNetUnfolder]: 8/50 cut-off events. [2021-03-24 13:14:05,110 INFO L130 PetriNetUnfolder]: For 42/45 co-relation queries the response was YES. [2021-03-24 13:14:05,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 50 events. 8/50 cut-off events. For 42/45 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 158 event pairs, 3 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 145. Up to 28 conditions per place. [2021-03-24 13:14:05,111 INFO L132 encePairwiseOnDemand]: 53/59 looper letters, 12 selfloop transitions, 7 changer transitions 4/28 dead transitions. [2021-03-24 13:14:05,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 179 flow [2021-03-24 13:14:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 13:14:05,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 13:14:05,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 257 transitions. [2021-03-24 13:14:05,116 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6222760290556901 [2021-03-24 13:14:05,119 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 257 transitions. [2021-03-24 13:14:05,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 257 transitions. [2021-03-24 13:14:05,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:14:05,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 257 transitions. [2021-03-24 13:14:05,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 36.714285714285715) internal successors, (257), 7 states have internal predecessors, (257), 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) [2021-03-24 13:14:05,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 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) [2021-03-24 13:14:05,124 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 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) [2021-03-24 13:14:05,124 INFO L185 Difference]: Start difference. First operand has 29 places, 21 transitions, 94 flow. Second operand 7 states and 257 transitions. [2021-03-24 13:14:05,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 179 flow [2021-03-24 13:14:05,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 165 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-24 13:14:05,127 INFO L241 Difference]: Finished difference. Result has 33 places, 22 transitions, 121 flow [2021-03-24 13:14:05,127 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=121, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2021-03-24 13:14:05,127 INFO L343 CegarLoopForPetriNet]: 21 programPoint places, 12 predicate places. [2021-03-24 13:14:05,127 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 121 flow [2021-03-24 13:14:05,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 states have internal predecessors, (248), 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) [2021-03-24 13:14:05,127 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:14:05,128 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:14:05,128 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 13:14:05,128 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 13:14:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:14:05,128 INFO L82 PathProgramCache]: Analyzing trace with hash 70323223, now seen corresponding path program 3 times [2021-03-24 13:14:05,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:14:05,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030421157] [2021-03-24 13:14:05,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:14:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:14:05,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:05,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:14:05,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:05,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:14:05,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:05,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:14:05,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:05,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 13:14:05,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:14:05,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030421157] [2021-03-24 13:14:05,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:14:05,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 13:14:05,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98566342] [2021-03-24 13:14:05,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 13:14:05,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:14:05,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 13:14:05,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 13:14:05,190 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 59 [2021-03-24 13:14:05,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 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) [2021-03-24 13:14:05,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:14:05,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 59 [2021-03-24 13:14:05,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:14:05,245 INFO L129 PetriNetUnfolder]: 4/42 cut-off events. [2021-03-24 13:14:05,245 INFO L130 PetriNetUnfolder]: For 69/76 co-relation queries the response was YES. [2021-03-24 13:14:05,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 42 events. 4/42 cut-off events. For 69/76 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 128 event pairs, 1 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 137. Up to 21 conditions per place. [2021-03-24 13:14:05,246 INFO L132 encePairwiseOnDemand]: 54/59 looper letters, 13 selfloop transitions, 4 changer transitions 2/25 dead transitions. [2021-03-24 13:14:05,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 180 flow [2021-03-24 13:14:05,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 13:14:05,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 13:14:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 195 transitions. [2021-03-24 13:14:05,248 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6610169491525424 [2021-03-24 13:14:05,248 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 195 transitions. [2021-03-24 13:14:05,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 195 transitions. [2021-03-24 13:14:05,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:14:05,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 195 transitions. [2021-03-24 13:14:05,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2021-03-24 13:14:05,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 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) [2021-03-24 13:14:05,250 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 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) [2021-03-24 13:14:05,250 INFO L185 Difference]: Start difference. First operand has 33 places, 22 transitions, 121 flow. Second operand 5 states and 195 transitions. [2021-03-24 13:14:05,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 180 flow [2021-03-24 13:14:05,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 25 transitions, 158 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-24 13:14:05,252 INFO L241 Difference]: Finished difference. Result has 32 places, 22 transitions, 119 flow [2021-03-24 13:14:05,252 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=119, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2021-03-24 13:14:05,253 INFO L343 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2021-03-24 13:14:05,253 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 119 flow [2021-03-24 13:14:05,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 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) [2021-03-24 13:14:05,253 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:14:05,253 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:14:05,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 13:14:05,253 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 13:14:05,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:14:05,254 INFO L82 PathProgramCache]: Analyzing trace with hash 70207903, now seen corresponding path program 4 times [2021-03-24 13:14:05,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:14:05,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664250963] [2021-03-24 13:14:05,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:14:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:14:05,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:05,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:14:05,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:05,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:14:05,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:05,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:14:05,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:14:05,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 13:14:05,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:14:05,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664250963] [2021-03-24 13:14:05,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:14:05,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 13:14:05,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783320259] [2021-03-24 13:14:05,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 13:14:05,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:14:05,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 13:14:05,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 13:14:05,295 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 59 [2021-03-24 13:14:05,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 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) [2021-03-24 13:14:05,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:14:05,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 59 [2021-03-24 13:14:05,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:14:05,342 INFO L129 PetriNetUnfolder]: 4/38 cut-off events. [2021-03-24 13:14:05,342 INFO L130 PetriNetUnfolder]: For 80/90 co-relation queries the response was YES. [2021-03-24 13:14:05,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 38 events. 4/38 cut-off events. For 80/90 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 108 event pairs, 2 based on Foata normal form. 3/39 useless extension candidates. Maximal degree in co-relation 126. Up to 22 conditions per place. [2021-03-24 13:14:05,343 INFO L132 encePairwiseOnDemand]: 55/59 looper letters, 9 selfloop transitions, 5 changer transitions 4/23 dead transitions. [2021-03-24 13:14:05,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 23 transitions, 160 flow [2021-03-24 13:14:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 13:14:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 13:14:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 193 transitions. [2021-03-24 13:14:05,346 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6542372881355932 [2021-03-24 13:14:05,346 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 193 transitions. [2021-03-24 13:14:05,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 193 transitions. [2021-03-24 13:14:05,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:14:05,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 193 transitions. [2021-03-24 13:14:05,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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) [2021-03-24 13:14:05,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 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) [2021-03-24 13:14:05,348 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 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) [2021-03-24 13:14:05,348 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 119 flow. Second operand 5 states and 193 transitions. [2021-03-24 13:14:05,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 23 transitions, 160 flow [2021-03-24 13:14:05,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 23 transitions, 148 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-24 13:14:05,351 INFO L241 Difference]: Finished difference. Result has 33 places, 19 transitions, 110 flow [2021-03-24 13:14:05,351 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=110, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2021-03-24 13:14:05,351 INFO L343 CegarLoopForPetriNet]: 21 programPoint places, 12 predicate places. [2021-03-24 13:14:05,351 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 110 flow [2021-03-24 13:14:05,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 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) [2021-03-24 13:14:05,351 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:14:05,351 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:14:05,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 13:14:05,352 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 13:14:05,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:14:05,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1745254573, now seen corresponding path program 1 times [2021-03-24 13:14:05,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:14:05,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182478082] [2021-03-24 13:14:05,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:14:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 13:14:05,365 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 13:14:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 13:14:05,374 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 13:14:05,393 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 13:14:05,393 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 13:14:05,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 13:14:05,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 01:14:05 BasicIcfg [2021-03-24 13:14:05,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 13:14:05,429 INFO L168 Benchmark]: Toolchain (without parser) took 2903.89 ms. Allocated memory was 255.9 MB in the beginning and 343.9 MB in the end (delta: 88.1 MB). Free memory was 232.7 MB in the beginning and 255.7 MB in the end (delta: -23.0 MB). Peak memory consumption was 63.7 MB. Max. memory is 16.0 GB. [2021-03-24 13:14:05,430 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.7 MB in the end (delta: 144.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 13:14:05,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.62 ms. Allocated memory was 255.9 MB in the beginning and 343.9 MB in the end (delta: 88.1 MB). Free memory was 232.7 MB in the beginning and 327.9 MB in the end (delta: -95.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.0 GB. [2021-03-24 13:14:05,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.11 ms. Allocated memory is still 343.9 MB. Free memory was 327.9 MB in the beginning and 326.9 MB in the end (delta: 941.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 13:14:05,431 INFO L168 Benchmark]: Boogie Preprocessor took 23.87 ms. Allocated memory is still 343.9 MB. Free memory was 326.3 MB in the beginning and 325.5 MB in the end (delta: 760.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 13:14:05,431 INFO L168 Benchmark]: RCFGBuilder took 307.93 ms. Allocated memory is still 343.9 MB. Free memory was 325.5 MB in the beginning and 310.9 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-24 13:14:05,432 INFO L168 Benchmark]: TraceAbstraction took 2292.60 ms. Allocated memory is still 343.9 MB. Free memory was 310.9 MB in the beginning and 255.7 MB in the end (delta: 55.3 MB). Peak memory consumption was 55.2 MB. Max. memory is 16.0 GB. [2021-03-24 13:14:05,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.7 MB in the end (delta: 144.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 240.62 ms. Allocated memory was 255.9 MB in the beginning and 343.9 MB in the end (delta: 88.1 MB). Free memory was 232.7 MB in the beginning and 327.9 MB in the end (delta: -95.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 29.11 ms. Allocated memory is still 343.9 MB. Free memory was 327.9 MB in the beginning and 326.9 MB in the end (delta: 941.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 23.87 ms. Allocated memory is still 343.9 MB. Free memory was 326.3 MB in the beginning and 325.5 MB in the end (delta: 760.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 307.93 ms. Allocated memory is still 343.9 MB. Free memory was 325.5 MB in the beginning and 310.9 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2292.60 ms. Allocated memory is still 343.9 MB. Free memory was 310.9 MB in the beginning and 255.7 MB in the end (delta: 55.3 MB). Peak memory consumption was 55.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 975.1ms, 38 PlacesBefore, 21 PlacesAfterwards, 32 TransitionsBefore, 15 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 17 TotalNumberOfCompositions, 244 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 154, positive: 137, positive conditional: 0, positive unconditional: 137, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 112, positive: 101, positive conditional: 0, positive unconditional: 101, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 112, positive: 101, positive conditional: 0, positive unconditional: 101, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 154, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int x = 0; VAL [x=0] [L27] 0 pthread_t first_th_id; [L28] 0 pthread_t second_th_id; [L30] FCALL, FORK 0 pthread_create(&first_th_id, NULL, inc, NULL) VAL [n={0:0}, x=0] [L17] 1 x++ VAL [n={0:0}, n={0:0}, x=0, x++=0] [L31] FCALL, FORK 0 pthread_create(&second_th_id, NULL, dec, NULL) VAL [n={0:0}, n={0:0}, n={0:0}, x=0, x++=0] [L33] 0 \read(first_th_id) VAL [n={0:0}, n={0:0}, n={0:0}, x=0, x++=0] [L17] 1 x++ [L18] 1 return NULL; VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1] [L33] FCALL, JOIN 1 pthread_join(first_th_id, NULL) VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1] [L34] 0 int y = x; VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1] [L22] 2 x-- [L23] 2 return NULL; [L36] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, \result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 2121.6ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 517.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1035.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 48 SDtfs, 13 SDslu, 37 SDs, 0 SdLazy, 200 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 177.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 181.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=3, 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: 13.9ms SsaConstructionTime, 67.3ms SatisfiabilityAnalysisTime, 316.1ms InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...