/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/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 11:14:57,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 11:14:57,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 11:14:57,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 11:14:57,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 11:14:57,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 11:14:57,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 11:14:57,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 11:14:57,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 11:14:57,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 11:14:57,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 11:14:57,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 11:14:57,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 11:14:57,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 11:14:57,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 11:14:57,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 11:14:57,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 11:14:57,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 11:14:57,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 11:14:57,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 11:14:57,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 11:14:57,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 11:14:57,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 11:14:57,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 11:14:57,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-24 11:14:57,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-24 11:14:57,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-24 11:14:57,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-24 11:14:57,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-24 11:14:57,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-24 11:14:57,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 11:14:57,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 11:14:57,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 11:14:57,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 11:14:57,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 11:14:57,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 11:14:57,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 11:14:57,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 11:14:57,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 11:14:57,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 11:14:57,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 11:14:57,973 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 11:14:57,999 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 11:14:57,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 11:14:58,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 11:14:58,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 11:14:58,000 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 11:14:58,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 11:14:58,000 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 11:14:58,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 11:14:58,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 11:14:58,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 11:14:58,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 11:14:58,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 11:14:58,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 11:14:58,001 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 11:14:58,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 11:14:58,001 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 11:14:58,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 11:14:58,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 11:14:58,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 11:14:58,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 11:14:58,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 11:14:58,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:14:58,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 11:14:58,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 11:14:58,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 11:14:58,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 11:14:58,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 11:14:58,002 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 11:14:58,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 11:14:58,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 11:14:58,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 11:14:58,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 11:14:58,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 11:14:58,351 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 11:14:58,352 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 11:14:58,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-03-24 11:14:58,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/829e91277/5c53741f1a8c4c1ea774ea42518e7df8/FLAGa6286b5a9 [2021-03-24 11:14:58,861 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 11:14:58,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-03-24 11:14:58,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/829e91277/5c53741f1a8c4c1ea774ea42518e7df8/FLAGa6286b5a9 [2021-03-24 11:14:59,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/829e91277/5c53741f1a8c4c1ea774ea42518e7df8 [2021-03-24 11:14:59,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 11:14:59,213 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 11:14:59,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 11:14:59,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 11:14:59,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 11:14:59,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:14:59" (1/1) ... [2021-03-24 11:14:59,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4820578a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:14:59, skipping insertion in model container [2021-03-24 11:14:59,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:14:59" (1/1) ... [2021-03-24 11:14:59,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 11:14:59,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 11:14:59,758 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-03-24 11:14:59,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:14:59,778 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 11:14:59,812 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-03-24 11:14:59,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:15:00,004 INFO L208 MainTranslator]: Completed translation [2021-03-24 11:15:00,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00 WrapperNode [2021-03-24 11:15:00,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 11:15:00,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 11:15:00,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 11:15:00,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 11:15:00,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00" (1/1) ... [2021-03-24 11:15:00,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00" (1/1) ... [2021-03-24 11:15:00,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 11:15:00,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 11:15:00,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 11:15:00,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 11:15:00,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00" (1/1) ... [2021-03-24 11:15:00,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00" (1/1) ... [2021-03-24 11:15:00,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00" (1/1) ... [2021-03-24 11:15:00,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00" (1/1) ... [2021-03-24 11:15:00,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00" (1/1) ... [2021-03-24 11:15:00,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00" (1/1) ... [2021-03-24 11:15:00,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00" (1/1) ... [2021-03-24 11:15:00,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 11:15:00,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 11:15:00,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 11:15:00,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 11:15:00,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00" (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 11:15:00,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 11:15:00,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 11:15:00,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 11:15:00,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 11:15:00,138 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-24 11:15:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-24 11:15:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 11:15:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 11:15:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 11:15:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-24 11:15:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-24 11:15:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 11:15:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 11:15:00,142 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 11:15:00,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 11:15:00,637 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-03-24 11:15:00,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:15:00 BoogieIcfgContainer [2021-03-24 11:15:00,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 11:15:00,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 11:15:00,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 11:15:00,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 11:15:00,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 11:14:59" (1/3) ... [2021-03-24 11:15:00,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c38ba71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:15:00, skipping insertion in model container [2021-03-24 11:15:00,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:00" (2/3) ... [2021-03-24 11:15:00,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c38ba71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:15:00, skipping insertion in model container [2021-03-24 11:15:00,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:15:00" (3/3) ... [2021-03-24 11:15:00,642 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-03-24 11:15:00,645 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 11:15:00,648 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-03-24 11:15:00,648 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 11:15:00,679 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,679 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,679 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,679 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,679 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,679 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,679 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,679 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,681 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,682 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,682 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,682 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,682 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:00,691 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-24 11:15:00,712 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-24 11:15:00,728 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 11:15:00,728 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 11:15:00,728 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 11:15:00,728 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 11:15:00,728 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 11:15:00,728 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 11:15:00,729 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 11:15:00,729 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 11:15:00,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 87 transitions, 182 flow [2021-03-24 11:15:00,781 INFO L129 PetriNetUnfolder]: 4/101 cut-off events. [2021-03-24 11:15:00,781 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-24 11:15:00,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 4/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 150 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 3 conditions per place. [2021-03-24 11:15:00,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 87 transitions, 182 flow [2021-03-24 11:15:00,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 76 transitions, 158 flow [2021-03-24 11:15:00,789 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 11:15:00,797 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 76 transitions, 158 flow [2021-03-24 11:15:00,799 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 76 transitions, 158 flow [2021-03-24 11:15:00,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 76 transitions, 158 flow [2021-03-24 11:15:00,832 INFO L129 PetriNetUnfolder]: 2/86 cut-off events. [2021-03-24 11:15:00,832 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-24 11:15:00,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 86 events. 2/86 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-24 11:15:00,834 INFO L142 LiptonReduction]: Number of co-enabled transitions 168 [2021-03-24 11:15:02,466 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-03-24 11:15:02,688 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-03-24 11:15:03,043 INFO L154 LiptonReduction]: Checked pairs total: 183 [2021-03-24 11:15:03,043 INFO L156 LiptonReduction]: Total number of compositions: 59 [2021-03-24 11:15:03,045 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2259 [2021-03-24 11:15:03,055 INFO L129 PetriNetUnfolder]: 1/6 cut-off events. [2021-03-24 11:15:03,055 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:15:03,055 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:03,056 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-03-24 11:15:03,056 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:15:03,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:03,062 INFO L82 PathProgramCache]: Analyzing trace with hash 9813047, now seen corresponding path program 1 times [2021-03-24 11:15:03,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:03,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704531369] [2021-03-24 11:15:03,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:03,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:03,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:03,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:03,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:15:03,290 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 11:15:03,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704531369] [2021-03-24 11:15:03,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:03,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 11:15:03,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339576660] [2021-03-24 11:15:03,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:15:03,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:03,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:15:03,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:15:03,313 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 146 [2021-03-24 11:15:03,316 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 26 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 11:15:03,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:03,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 146 [2021-03-24 11:15:03,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:03,343 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-24 11:15:03,343 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-24 11:15:03,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 20 events. 0/20 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 0 based on Foata normal form. 3/19 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-24 11:15:03,344 INFO L132 encePairwiseOnDemand]: 136/146 looper letters, 1 selfloop transitions, 3 changer transitions 6/20 dead transitions. [2021-03-24 11:15:03,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 62 flow [2021-03-24 11:15:03,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:15:03,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:15:03,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions. [2021-03-24 11:15:03,357 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8036529680365296 [2021-03-24 11:15:03,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 352 transitions. [2021-03-24 11:15:03,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 352 transitions. [2021-03-24 11:15:03,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:03,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 352 transitions. [2021-03-24 11:15:03,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 11:15:03,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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 11:15:03,371 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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 11:15:03,373 INFO L185 Difference]: Start difference. First operand has 27 places, 26 transitions, 58 flow. Second operand 3 states and 352 transitions. [2021-03-24 11:15:03,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 62 flow [2021-03-24 11:15:03,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 58 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 11:15:03,377 INFO L241 Difference]: Finished difference. Result has 24 places, 14 transitions, 35 flow [2021-03-24 11:15:03,379 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=35, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2021-03-24 11:15:03,379 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, -3 predicate places. [2021-03-24 11:15:03,380 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 35 flow [2021-03-24 11:15:03,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 11:15:03,380 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:03,380 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:15:03,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 11:15:03,381 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:15:03,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:03,381 INFO L82 PathProgramCache]: Analyzing trace with hash 281236572, now seen corresponding path program 1 times [2021-03-24 11:15:03,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:03,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901254702] [2021-03-24 11:15:03,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:03,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:03,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:03,459 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-03-24 11:15:03,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:03,462 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 11:15:03,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901254702] [2021-03-24 11:15:03,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:03,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 11:15:03,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989287958] [2021-03-24 11:15:03,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:15:03,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:03,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:15:03,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:15:03,466 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 146 [2021-03-24 11:15:03,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 35 flow. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 11:15:03,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:03,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 146 [2021-03-24 11:15:03,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:03,479 INFO L129 PetriNetUnfolder]: 2/18 cut-off events. [2021-03-24 11:15:03,479 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-24 11:15:03,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 18 events. 2/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 2 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 18. Up to 10 conditions per place. [2021-03-24 11:15:03,480 INFO L132 encePairwiseOnDemand]: 144/146 looper letters, 5 selfloop transitions, 0 changer transitions 1/13 dead transitions. [2021-03-24 11:15:03,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 13 transitions, 43 flow [2021-03-24 11:15:03,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:15:03,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:15:03,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2021-03-24 11:15:03,482 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7420091324200914 [2021-03-24 11:15:03,482 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 325 transitions. [2021-03-24 11:15:03,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 325 transitions. [2021-03-24 11:15:03,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:03,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 325 transitions. [2021-03-24 11:15:03,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 11:15:03,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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 11:15:03,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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 11:15:03,486 INFO L185 Difference]: Start difference. First operand has 24 places, 14 transitions, 35 flow. Second operand 3 states and 325 transitions. [2021-03-24 11:15:03,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 13 transitions, 43 flow [2021-03-24 11:15:03,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 39 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 11:15:03,487 INFO L241 Difference]: Finished difference. Result has 17 places, 12 transitions, 25 flow [2021-03-24 11:15:03,487 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=25, PETRI_PLACES=17, PETRI_TRANSITIONS=12} [2021-03-24 11:15:03,488 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, -10 predicate places. [2021-03-24 11:15:03,488 INFO L480 AbstractCegarLoop]: Abstraction has has 17 places, 12 transitions, 25 flow [2021-03-24 11:15:03,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 11:15:03,488 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:03,488 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:15:03,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 11:15:03,489 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:15:03,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:03,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1158385933, now seen corresponding path program 1 times [2021-03-24 11:15:03,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:03,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110552829] [2021-03-24 11:15:03,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:03,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:03,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:03,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:03,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:03,547 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 11:15:03,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110552829] [2021-03-24 11:15:03,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:03,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 11:15:03,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464076331] [2021-03-24 11:15:03,548 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:15:03,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:03,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:15:03,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:15:03,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 146 [2021-03-24 11:15:03,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 12 transitions, 25 flow. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 11:15:03,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:03,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 146 [2021-03-24 11:15:03,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:03,565 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-24 11:15:03,565 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:15:03,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 15 events. 0/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 2/17 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-24 11:15:03,566 INFO L132 encePairwiseOnDemand]: 143/146 looper letters, 3 selfloop transitions, 2 changer transitions 1/13 dead transitions. [2021-03-24 11:15:03,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 13 transitions, 39 flow [2021-03-24 11:15:03,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:15:03,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:15:03,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2021-03-24 11:15:03,568 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7420091324200914 [2021-03-24 11:15:03,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 325 transitions. [2021-03-24 11:15:03,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 325 transitions. [2021-03-24 11:15:03,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:03,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 325 transitions. [2021-03-24 11:15:03,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 11:15:03,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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 11:15:03,570 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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 11:15:03,571 INFO L185 Difference]: Start difference. First operand has 17 places, 12 transitions, 25 flow. Second operand 3 states and 325 transitions. [2021-03-24 11:15:03,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 13 transitions, 39 flow [2021-03-24 11:15:03,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 39 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 11:15:03,571 INFO L241 Difference]: Finished difference. Result has 18 places, 12 transitions, 33 flow [2021-03-24 11:15:03,571 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=18, PETRI_TRANSITIONS=12} [2021-03-24 11:15:03,572 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, -9 predicate places. [2021-03-24 11:15:03,572 INFO L480 AbstractCegarLoop]: Abstraction has has 18 places, 12 transitions, 33 flow [2021-03-24 11:15:03,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 11:15:03,572 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:03,572 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:15:03,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 11:15:03,573 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:15:03,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:03,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1550222995, now seen corresponding path program 1 times [2021-03-24 11:15:03,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:03,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391238738] [2021-03-24 11:15:03,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 11:15:03,621 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 11:15:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 11:15:03,636 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 11:15:03,654 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 11:15:03,655 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 11:15:03,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 11:15:03,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 11:15:03 BasicIcfg [2021-03-24 11:15:03,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 11:15:03,685 INFO L168 Benchmark]: Toolchain (without parser) took 4470.89 ms. Allocated memory was 350.2 MB in the beginning and 423.6 MB in the end (delta: 73.4 MB). Free memory was 311.8 MB in the beginning and 227.7 MB in the end (delta: 84.1 MB). Peak memory consumption was 161.0 MB. Max. memory is 16.0 GB. [2021-03-24 11:15:03,685 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 350.2 MB. Free memory was 331.7 MB in the beginning and 331.7 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:15:03,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.53 ms. Allocated memory is still 350.2 MB. Free memory was 311.6 MB in the beginning and 309.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 93.6 MB. Max. memory is 16.0 GB. [2021-03-24 11:15:03,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.88 ms. Allocated memory is still 350.2 MB. Free memory was 309.5 MB in the beginning and 306.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:15:03,691 INFO L168 Benchmark]: Boogie Preprocessor took 22.63 ms. Allocated memory is still 350.2 MB. Free memory was 306.4 MB in the beginning and 304.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:15:03,692 INFO L168 Benchmark]: RCFGBuilder took 556.14 ms. Allocated memory is still 350.2 MB. Free memory was 304.3 MB in the beginning and 263.4 MB in the end (delta: 40.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.0 GB. [2021-03-24 11:15:03,692 INFO L168 Benchmark]: TraceAbstraction took 3045.11 ms. Allocated memory was 350.2 MB in the beginning and 423.6 MB in the end (delta: 73.4 MB). Free memory was 262.4 MB in the beginning and 227.7 MB in the end (delta: 34.7 MB). Peak memory consumption was 108.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:15:03,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 350.2 MB. Free memory was 331.7 MB in the beginning and 331.7 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 790.53 ms. Allocated memory is still 350.2 MB. Free memory was 311.6 MB in the beginning and 309.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 93.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.88 ms. Allocated memory is still 350.2 MB. Free memory was 309.5 MB in the beginning and 306.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.63 ms. Allocated memory is still 350.2 MB. Free memory was 306.4 MB in the beginning and 304.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 556.14 ms. Allocated memory is still 350.2 MB. Free memory was 304.3 MB in the beginning and 263.4 MB in the end (delta: 40.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3045.11 ms. Allocated memory was 350.2 MB in the beginning and 423.6 MB in the end (delta: 73.4 MB). Free memory was 262.4 MB in the beginning and 227.7 MB in the end (delta: 34.7 MB). Peak memory consumption was 108.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2244.7ms, 77 PlacesBefore, 27 PlacesAfterwards, 76 TransitionsBefore, 26 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 183 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 171, positive: 144, positive conditional: 0, positive unconditional: 144, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 96, positive: 87, positive conditional: 0, positive unconditional: 87, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 96, positive: 87, positive conditional: 0, positive unconditional: 87, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 171, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 96, unknown conditional: 0, unknown unconditional: 96] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; VAL [mutex={6:0}, pdev=0, t1={9:0}] [L1709] 0 pdev = 1 [L1695] COND FALSE 0 !(!expression) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={6:0}, pdev=1, t1={9:0}] [L1713] 0 return 0; [L1734] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, mutex={6:0}, pdev=1, t1={9:0}] [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={6:0}, pdev=4, t1={9:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={6:0}, pdev=6, t1={9:0}] [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={6:0}, pdev=6, t1={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 83 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 2931.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 117.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2323.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 19 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 15 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, InterpolantAutomatonStates: 9, 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: 9.5ms SsaConstructionTime, 76.9ms SatisfiabilityAnalysisTime, 173.9ms InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...