/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 21:47:39,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 21:47:39,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 21:47:39,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 21:47:39,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 21:47:39,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 21:47:39,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 21:47:39,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 21:47:39,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 21:47:39,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 21:47:39,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 21:47:39,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 21:47:39,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 21:47:39,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 21:47:39,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 21:47:39,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 21:47:39,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 21:47:39,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 21:47:39,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 21:47:39,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 21:47:39,122 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-SemanticLbe.epf [2021-03-11 21:47:39,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 21:47:39,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 21:47:39,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 21:47:39,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 21:47:39,146 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 21:47:39,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 21:47:39,147 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 21:47:39,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 21:47:39,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 21:47:39,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 21:47:39,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 21:47:39,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 21:47:39,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 21:47:39,148 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 21:47:39,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 21:47:39,148 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 21:47:39,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 21:47:39,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 21:47:39,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 21:47:39,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 21:47:39,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 21:47:39,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 21:47:39,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 21:47:39,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 21:47:39,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 21:47:39,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 21:47:39,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 21:47:39,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 21:47:39,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 21:47:39,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 21:47:39,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 21:47:39,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 21:47:39,400 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 21:47:39,403 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 21:47:39,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2021-03-11 21:47:39,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d50c894c9/8d08a21610af4b249dbeb1bd2ea32226/FLAGa9d2e9cc4 [2021-03-11 21:47:39,850 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 21:47:39,852 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2021-03-11 21:47:39,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d50c894c9/8d08a21610af4b249dbeb1bd2ea32226/FLAGa9d2e9cc4 [2021-03-11 21:47:39,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d50c894c9/8d08a21610af4b249dbeb1bd2ea32226 [2021-03-11 21:47:39,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 21:47:39,879 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 21:47:39,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 21:47:39,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 21:47:39,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 21:47:39,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:47:39" (1/1) ... [2021-03-11 21:47:39,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1911a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:39, skipping insertion in model container [2021-03-11 21:47:39,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:47:39" (1/1) ... [2021-03-11 21:47:39,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 21:47:39,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 21:47:40,195 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i[29913,29926] [2021-03-11 21:47:40,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 21:47:40,215 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 21:47:40,245 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i[29913,29926] [2021-03-11 21:47:40,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 21:47:40,296 INFO L208 MainTranslator]: Completed translation [2021-03-11 21:47:40,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40 WrapperNode [2021-03-11 21:47:40,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 21:47:40,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 21:47:40,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 21:47:40,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 21:47:40,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40" (1/1) ... [2021-03-11 21:47:40,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40" (1/1) ... [2021-03-11 21:47:40,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 21:47:40,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 21:47:40,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 21:47:40,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 21:47:40,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40" (1/1) ... [2021-03-11 21:47:40,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40" (1/1) ... [2021-03-11 21:47:40,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40" (1/1) ... [2021-03-11 21:47:40,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40" (1/1) ... [2021-03-11 21:47:40,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40" (1/1) ... [2021-03-11 21:47:40,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40" (1/1) ... [2021-03-11 21:47:40,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40" (1/1) ... [2021-03-11 21:47:40,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 21:47:40,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 21:47:40,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 21:47:40,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 21:47:40,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40" (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 [2021-03-11 21:47:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 21:47:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 21:47:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 21:47:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 21:47:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-03-11 21:47:40,378 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-03-11 21:47:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 21:47:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 21:47:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 21:47:40,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 21:47:40,379 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 21:47:40,605 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 21:47:40,605 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-03-11 21:47:40,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:47:40 BoogieIcfgContainer [2021-03-11 21:47:40,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 21:47:40,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 21:47:40,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 21:47:40,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 21:47:40,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 09:47:39" (1/3) ... [2021-03-11 21:47:40,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df5c110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:47:40, skipping insertion in model container [2021-03-11 21:47:40,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:47:40" (2/3) ... [2021-03-11 21:47:40,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df5c110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:47:40, skipping insertion in model container [2021-03-11 21:47:40,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:47:40" (3/3) ... [2021-03-11 21:47:40,611 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2021-03-11 21:47:40,614 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 21:47:40,617 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 21:47:40,617 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 21:47:40,633 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,634 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,634 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,634 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,634 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,634 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,634 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,634 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,635 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,635 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,635 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,635 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,635 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,635 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,635 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,635 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,635 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,635 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,636 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,636 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,636 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,636 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,636 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,636 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,636 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,637 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,637 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,637 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,637 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,637 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,637 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,637 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,637 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,638 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,638 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,638 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,638 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,638 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,638 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,638 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,638 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,638 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,639 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,639 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,639 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,639 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,639 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,639 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,639 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,639 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,639 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,639 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,640 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,640 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,640 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,640 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,640 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,640 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,640 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,640 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,640 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,640 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,640 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,641 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,641 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,641 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,641 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,641 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,641 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,641 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,641 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,641 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,643 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,643 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,643 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,643 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,643 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,643 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,644 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,644 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,644 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,644 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,644 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,644 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,644 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 21:47:40,649 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-11 21:47:40,660 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-11 21:47:40,672 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 21:47:40,673 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 21:47:40,673 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 21:47:40,673 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 21:47:40,673 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 21:47:40,673 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 21:47:40,673 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 21:47:40,673 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 21:47:40,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 96 transitions, 200 flow [2021-03-11 21:47:40,703 INFO L129 PetriNetUnfolder]: 9/95 cut-off events. [2021-03-11 21:47:40,703 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 21:47:40,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 9/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2021-03-11 21:47:40,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 96 transitions, 200 flow [2021-03-11 21:47:40,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 86 transitions, 175 flow [2021-03-11 21:47:40,713 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 21:47:40,719 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 86 transitions, 175 flow [2021-03-11 21:47:40,723 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 86 transitions, 175 flow [2021-03-11 21:47:40,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 86 transitions, 175 flow [2021-03-11 21:47:40,750 INFO L129 PetriNetUnfolder]: 9/86 cut-off events. [2021-03-11 21:47:40,751 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 21:47:40,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 9/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 126 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2021-03-11 21:47:40,754 INFO L116 LiptonReduction]: Number of co-enabled transitions 1386 [2021-03-11 21:47:42,971 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-11 21:47:43,167 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-11 21:47:43,531 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2021-03-11 21:47:43,663 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-03-11 21:47:43,927 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2021-03-11 21:47:44,047 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-03-11 21:47:44,570 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2021-03-11 21:47:44,800 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-03-11 21:47:45,323 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2021-03-11 21:47:45,546 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-03-11 21:47:45,561 INFO L131 LiptonReduction]: Checked pairs total: 2858 [2021-03-11 21:47:45,562 INFO L133 LiptonReduction]: Total number of compositions: 80 [2021-03-11 21:47:45,567 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4856 [2021-03-11 21:47:45,576 INFO L129 PetriNetUnfolder]: 3/14 cut-off events. [2021-03-11 21:47:45,576 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 21:47:45,576 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 21:47:45,576 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 21:47:45,576 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 21:47:45,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 21:47:45,580 INFO L82 PathProgramCache]: Analyzing trace with hash 351603010, now seen corresponding path program 1 times [2021-03-11 21:47:45,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 21:47:45,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092679351] [2021-03-11 21:47:45,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 21:47:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 21:47:45,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 21:47:45,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 21:47:45,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 21:47:45,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092679351] [2021-03-11 21:47:45,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 21:47:45,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 21:47:45,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814235209] [2021-03-11 21:47:45,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 21:47:45,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 21:47:45,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 21:47:45,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 21:47:45,769 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 176 [2021-03-11 21:47:45,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 26 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2021-03-11 21:47:45,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 21:47:45,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 176 [2021-03-11 21:47:45,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 21:47:45,790 INFO L129 PetriNetUnfolder]: 9/55 cut-off events. [2021-03-11 21:47:45,791 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 21:47:45,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 55 events. 9/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 174 event pairs, 2 based on Foata normal form. 16/67 useless extension candidates. Maximal degree in co-relation 82. Up to 20 conditions per place. [2021-03-11 21:47:45,792 INFO L132 encePairwiseOnDemand]: 163/176 looper letters, 4 selfloop transitions, 2 changer transitions 8/22 dead transitions. [2021-03-11 21:47:45,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 22 transitions, 71 flow [2021-03-11 21:47:45,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 21:47:45,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 21:47:45,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2021-03-11 21:47:45,803 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.509469696969697 [2021-03-11 21:47:45,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2021-03-11 21:47:45,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2021-03-11 21:47:45,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 21:47:45,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2021-03-11 21:47:45,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 21:47:45,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-03-11 21:47:45,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-03-11 21:47:45,812 INFO L185 Difference]: Start difference. First operand has 22 places, 26 transitions, 55 flow. Second operand 3 states and 269 transitions. [2021-03-11 21:47:45,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 22 transitions, 71 flow [2021-03-11 21:47:45,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 22 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 21:47:45,814 INFO L241 Difference]: Finished difference. Result has 24 places, 14 transitions, 40 flow [2021-03-11 21:47:45,815 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2021-03-11 21:47:45,816 INFO L335 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2021-03-11 21:47:45,816 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 40 flow [2021-03-11 21:47:45,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2021-03-11 21:47:45,816 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 21:47:45,816 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 21:47:45,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 21:47:45,816 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 21:47:45,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 21:47:45,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1115826839, now seen corresponding path program 1 times [2021-03-11 21:47:45,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 21:47:45,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46952683] [2021-03-11 21:47:45,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 21:47:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 21:47:45,884 INFO L142 QuantifierPusher]: treesize reduction 17, result has 43.3 percent of original size [2021-03-11 21:47:45,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 21:47:45,897 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.0 percent of original size [2021-03-11 21:47:45,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 21:47:45,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 21:47:45,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 21:47:45,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 21:47:45,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 21:47:45,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 21:47:45,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46952683] [2021-03-11 21:47:45,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 21:47:45,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 21:47:45,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177493645] [2021-03-11 21:47:45,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 21:47:45,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 21:47:45,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 21:47:45,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 21:47:45,941 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 176 [2021-03-11 21:47:45,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 40 flow. Second operand has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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) [2021-03-11 21:47:45,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 21:47:45,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 176 [2021-03-11 21:47:45,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 21:47:45,983 INFO L129 PetriNetUnfolder]: 7/37 cut-off events. [2021-03-11 21:47:45,984 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 21:47:45,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 37 events. 7/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 4 based on Foata normal form. 4/41 useless extension candidates. Maximal degree in co-relation 70. Up to 15 conditions per place. [2021-03-11 21:47:45,984 INFO L132 encePairwiseOnDemand]: 169/176 looper letters, 4 selfloop transitions, 7 changer transitions 1/17 dead transitions. [2021-03-11 21:47:45,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 70 flow [2021-03-11 21:47:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 21:47:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 21:47:45,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 375 transitions. [2021-03-11 21:47:45,987 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5326704545454546 [2021-03-11 21:47:45,987 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 375 transitions. [2021-03-11 21:47:45,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 375 transitions. [2021-03-11 21:47:45,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 21:47:45,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 375 transitions. [2021-03-11 21:47:45,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 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) [2021-03-11 21:47:45,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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) [2021-03-11 21:47:45,993 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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) [2021-03-11 21:47:45,993 INFO L185 Difference]: Start difference. First operand has 24 places, 14 transitions, 40 flow. Second operand 4 states and 375 transitions. [2021-03-11 21:47:45,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 70 flow [2021-03-11 21:47:45,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 64 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-11 21:47:45,994 INFO L241 Difference]: Finished difference. Result has 22 places, 15 transitions, 58 flow [2021-03-11 21:47:45,994 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2021-03-11 21:47:45,994 INFO L335 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2021-03-11 21:47:45,994 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 58 flow [2021-03-11 21:47:45,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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) [2021-03-11 21:47:45,994 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 21:47:45,994 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 21:47:45,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 21:47:45,998 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 21:47:45,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 21:47:45,998 INFO L82 PathProgramCache]: Analyzing trace with hash 608204951, now seen corresponding path program 1 times [2021-03-11 21:47:45,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 21:47:45,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529002431] [2021-03-11 21:47:45,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 21:47:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 21:47:46,021 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 21:47:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 21:47:46,035 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 21:47:46,047 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 21:47:46,048 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 21:47:46,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 21:47:46,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 09:47:46 BasicIcfg [2021-03-11 21:47:46,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 21:47:46,065 INFO L168 Benchmark]: Toolchain (without parser) took 6188.30 ms. Allocated memory was 369.1 MB in the beginning and 497.0 MB in the end (delta: 127.9 MB). Free memory was 332.4 MB in the beginning and 431.7 MB in the end (delta: -99.3 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.0 GB. [2021-03-11 21:47:46,065 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 369.1 MB. Free memory is still 350.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 21:47:46,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.35 ms. Allocated memory is still 369.1 MB. Free memory was 331.8 MB in the beginning and 332.2 MB in the end (delta: -416.9 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. [2021-03-11 21:47:46,066 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.64 ms. Allocated memory is still 369.1 MB. Free memory was 332.2 MB in the beginning and 330.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 21:47:46,066 INFO L168 Benchmark]: Boogie Preprocessor took 13.89 ms. Allocated memory is still 369.1 MB. Free memory was 330.1 MB in the beginning and 329.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 21:47:46,066 INFO L168 Benchmark]: RCFGBuilder took 271.79 ms. Allocated memory is still 369.1 MB. Free memory was 329.1 MB in the beginning and 300.8 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-03-11 21:47:46,067 INFO L168 Benchmark]: TraceAbstraction took 5456.84 ms. Allocated memory was 369.1 MB in the beginning and 497.0 MB in the end (delta: 127.9 MB). Free memory was 300.8 MB in the beginning and 431.7 MB in the end (delta: -130.9 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 21:47:46,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 369.1 MB. Free memory is still 350.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 416.35 ms. Allocated memory is still 369.1 MB. Free memory was 331.8 MB in the beginning and 332.2 MB in the end (delta: -416.9 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.64 ms. Allocated memory is still 369.1 MB. Free memory was 332.2 MB in the beginning and 330.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.89 ms. Allocated memory is still 369.1 MB. Free memory was 330.1 MB in the beginning and 329.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 271.79 ms. Allocated memory is still 369.1 MB. Free memory was 329.1 MB in the beginning and 300.8 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5456.84 ms. Allocated memory was 369.1 MB in the beginning and 497.0 MB in the end (delta: 127.9 MB). Free memory was 300.8 MB in the beginning and 431.7 MB in the end (delta: -130.9 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4838.8ms, 81 PlacesBefore, 22 PlacesAfterwards, 86 TransitionsBefore, 26 TransitionsAfterwards, 1386 CoEnabledTransitionPairs, 7 FixpointIterations, 30 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 80 TotalNumberOfCompositions, 2858 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1582, positive: 1454, positive conditional: 0, positive unconditional: 1454, negative: 128, negative conditional: 0, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1010, positive: 973, positive conditional: 0, positive unconditional: 973, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1010, positive: 883, positive conditional: 0, positive unconditional: 883, negative: 127, negative conditional: 0, negative unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 127, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 300, positive: 146, positive conditional: 0, positive unconditional: 146, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1582, positive: 481, positive conditional: 0, positive unconditional: 481, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 1010, unknown conditional: 0, unknown unconditional: 1010] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - CounterExampleResult [Line: 684]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L689] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L690] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L691] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L700] 0 pthread_t id; [L701] 0 int i = 0; [L702] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [__global_lock={9:0}, arg={3:0}, mutex1={5:0}, mutex2={6:0}] [L693] 1 int *p = (int *) arg; [L695] EXPR 1 \read(*p) [L695] 1 (*p)++ [L704] 0 \read(i) [L684] COND TRUE 0 !(cond) [L684] 0 reach_error() VAL [__global_lock={9:0}, arg={3:0}, arg={3:0}, mutex1={5:0}, mutex2={6:0}, p={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 5378.3ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 104.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4900.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 35 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 44.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=2, InterpolantAutomatonStates: 7, 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: 5.6ms SsaConstructionTime, 73.5ms SatisfiabilityAnalysisTime, 157.5ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...