/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/goblint-regression/28-race_reach_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 12:27:16,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 12:27:16,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 12:27:16,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 12:27:16,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 12:27:16,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 12:27:16,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 12:27:16,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 12:27:16,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 12:27:16,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 12:27:16,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 12:27:16,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 12:27:16,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 12:27:16,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 12:27:16,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 12:27:16,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 12:27:16,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 12:27:16,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 12:27:16,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 12:27:16,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 12:27:16,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 12:27:16,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 12:27:16,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 12:27:16,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 12:27:16,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-24 12:27:16,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-24 12:27:16,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-24 12:27:16,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-24 12:27:16,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-24 12:27:16,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-24 12:27:16,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 12:27:16,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 12:27:16,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 12:27:16,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 12:27:16,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 12:27:16,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 12:27:16,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 12:27:16,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 12:27:16,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 12:27:16,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 12:27:16,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 12:27:16,161 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 12:27:16,197 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 12:27:16,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 12:27:16,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 12:27:16,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 12:27:16,201 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 12:27:16,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 12:27:16,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 12:27:16,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 12:27:16,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 12:27:16,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 12:27:16,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 12:27:16,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 12:27:16,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 12:27:16,203 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 12:27:16,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 12:27:16,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 12:27:16,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 12:27:16,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 12:27:16,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 12:27:16,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 12:27:16,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 12:27:16,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 12:27:16,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 12:27:16,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 12:27:16,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 12:27:16,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 12:27:16,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 12:27:16,206 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 12:27:16,206 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 12:27:16,206 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 12:27:16,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 12:27:16,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 12:27:16,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 12:27:16,499 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 12:27:16,500 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 12:27:16,500 INFO L432 ainManager$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 [2021-03-24 12:27:16,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5779c49e5/1d94d4431aa7479a9724dc42a58be179/FLAGa78a72ad7 [2021-03-24 12:27:17,011 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 12:27:17,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2021-03-24 12:27:17,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5779c49e5/1d94d4431aa7479a9724dc42a58be179/FLAGa78a72ad7 [2021-03-24 12:27:17,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5779c49e5/1d94d4431aa7479a9724dc42a58be179 [2021-03-24 12:27:17,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 12:27:17,304 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 12:27:17,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 12:27:17,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 12:27:17,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 12:27:17,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 12:27:17" (1/1) ... [2021-03-24 12:27:17,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511050fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17, skipping insertion in model container [2021-03-24 12:27:17,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 12:27:17" (1/1) ... [2021-03-24 12:27:17,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 12:27:17,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 12:27:17,564 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] [2021-03-24 12:27:17,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 12:27:17,601 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 12:27:17,651 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] [2021-03-24 12:27:17,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 12:27:17,714 INFO L208 MainTranslator]: Completed translation [2021-03-24 12:27:17,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17 WrapperNode [2021-03-24 12:27:17,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 12:27:17,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 12:27:17,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 12:27:17,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 12:27:17,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17" (1/1) ... [2021-03-24 12:27:17,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17" (1/1) ... [2021-03-24 12:27:17,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 12:27:17,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 12:27:17,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 12:27:17,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 12:27:17,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17" (1/1) ... [2021-03-24 12:27:17,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17" (1/1) ... [2021-03-24 12:27:17,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17" (1/1) ... [2021-03-24 12:27:17,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17" (1/1) ... [2021-03-24 12:27:17,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17" (1/1) ... [2021-03-24 12:27:17,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17" (1/1) ... [2021-03-24 12:27:17,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17" (1/1) ... [2021-03-24 12:27:17,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 12:27:17,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 12:27:17,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 12:27:17,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 12:27:17,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17" (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 12:27:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 12:27:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 12:27:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-24 12:27:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 12:27:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-03-24 12:27:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-03-24 12:27:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 12:27:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 12:27:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 12:27:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 12:27:17,833 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 12:27:18,203 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 12:27:18,203 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-03-24 12:27:18,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 12:27:18 BoogieIcfgContainer [2021-03-24 12:27:18,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 12:27:18,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 12:27:18,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 12:27:18,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 12:27:18,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 12:27:17" (1/3) ... [2021-03-24 12:27:18,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210198eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 12:27:18, skipping insertion in model container [2021-03-24 12:27:18,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:17" (2/3) ... [2021-03-24 12:27:18,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210198eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 12:27:18, skipping insertion in model container [2021-03-24 12:27:18,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 12:27:18" (3/3) ... [2021-03-24 12:27:18,210 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2021-03-24 12:27:18,223 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 12:27:18,226 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 12:27:18,227 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 12:27:18,259 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,259 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,259 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,259 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,260 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,260 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,260 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,260 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,260 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,260 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,260 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,261 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,261 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,261 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,261 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,262 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,263 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,263 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,263 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,263 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,263 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,263 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,264 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,264 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,264 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,264 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,265 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,265 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,265 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,266 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,266 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,266 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,266 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,266 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,266 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,266 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,267 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,267 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,269 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,269 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,270 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,270 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,270 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,270 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,270 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,270 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,270 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,271 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,271 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,271 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,271 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,271 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,272 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,273 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,273 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,273 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,273 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,273 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,273 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,273 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,273 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,274 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,276 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,277 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,277 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,277 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,277 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,277 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,277 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,278 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,278 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,278 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,279 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,279 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,279 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:18,287 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-24 12:27:18,301 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-24 12:27:18,333 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 12:27:18,333 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 12:27:18,333 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 12:27:18,333 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 12:27:18,333 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 12:27:18,333 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 12:27:18,334 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 12:27:18,334 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 12:27:18,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 96 transitions, 200 flow [2021-03-24 12:27:18,397 INFO L129 PetriNetUnfolder]: 9/95 cut-off events. [2021-03-24 12:27:18,397 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-24 12:27:18,408 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. [2021-03-24 12:27:18,409 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 96 transitions, 200 flow [2021-03-24 12:27:18,416 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 86 transitions, 175 flow [2021-03-24 12:27:18,417 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 12:27:18,427 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 86 transitions, 175 flow [2021-03-24 12:27:18,430 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 86 transitions, 175 flow [2021-03-24 12:27:18,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 86 transitions, 175 flow [2021-03-24 12:27:18,460 INFO L129 PetriNetUnfolder]: 9/86 cut-off events. [2021-03-24 12:27:18,460 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 12:27:18,461 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. [2021-03-24 12:27:18,468 INFO L142 LiptonReduction]: Number of co-enabled transitions 1386 [2021-03-24 12:27:20,018 INFO L154 LiptonReduction]: Checked pairs total: 1020 [2021-03-24 12:27:20,018 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-24 12:27:20,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1604 [2021-03-24 12:27:20,035 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2021-03-24 12:27:20,035 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 12:27:20,036 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 12:27:20,036 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 12:27:20,036 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 12:27:20,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 12:27:20,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1349762161, now seen corresponding path program 1 times [2021-03-24 12:27:20,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 12:27:20,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793966883] [2021-03-24 12:27:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 12:27:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 12:27:20,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:20,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 12:27:20,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:20,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 12:27:20,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:20,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 12:27:20,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:20,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 12:27:20,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:20,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 12:27:20,323 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 12:27:20,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793966883] [2021-03-24 12:27:20,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 12:27:20,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 12:27:20,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924646275] [2021-03-24 12:27:20,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 12:27:20,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 12:27:20,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 12:27:20,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-24 12:27:20,343 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 137 [2021-03-24 12:27:20,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 54 transitions, 111 flow. Second operand has 6 states, 6 states have (on average 60.166666666666664) internal successors, (361), 6 states have internal predecessors, (361), 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 12:27:20,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 12:27:20,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 137 [2021-03-24 12:27:20,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 12:27:20,537 INFO L129 PetriNetUnfolder]: 41/236 cut-off events. [2021-03-24 12:27:20,537 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 12:27:20,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 236 events. 41/236 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1194 event pairs, 10 based on Foata normal form. 93/324 useless extension candidates. Maximal degree in co-relation 332. Up to 35 conditions per place. [2021-03-24 12:27:20,539 INFO L132 encePairwiseOnDemand]: 120/137 looper letters, 15 selfloop transitions, 2 changer transitions 36/76 dead transitions. [2021-03-24 12:27:20,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 76 transitions, 257 flow [2021-03-24 12:27:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 12:27:20,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 12:27:20,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 791 transitions. [2021-03-24 12:27:20,557 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4811435523114355 [2021-03-24 12:27:20,558 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 791 transitions. [2021-03-24 12:27:20,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 791 transitions. [2021-03-24 12:27:20,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 12:27:20,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 791 transitions. [2021-03-24 12:27:20,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 65.91666666666667) internal successors, (791), 12 states have internal predecessors, (791), 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 12:27:20,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 12:27:20,577 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 12:27:20,579 INFO L185 Difference]: Start difference. First operand has 49 places, 54 transitions, 111 flow. Second operand 12 states and 791 transitions. [2021-03-24 12:27:20,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 76 transitions, 257 flow [2021-03-24 12:27:20,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 76 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 12:27:20,585 INFO L241 Difference]: Finished difference. Result has 66 places, 40 transitions, 102 flow [2021-03-24 12:27:20,586 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=102, PETRI_PLACES=66, PETRI_TRANSITIONS=40} [2021-03-24 12:27:20,587 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 17 predicate places. [2021-03-24 12:27:20,588 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 40 transitions, 102 flow [2021-03-24 12:27:20,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 60.166666666666664) internal successors, (361), 6 states have internal predecessors, (361), 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 12:27:20,588 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 12:27:20,589 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 12:27:20,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 12:27:20,589 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 12:27:20,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 12:27:20,590 INFO L82 PathProgramCache]: Analyzing trace with hash 2093122921, now seen corresponding path program 1 times [2021-03-24 12:27:20,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 12:27:20,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723028004] [2021-03-24 12:27:20,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 12:27:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 12:27:20,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:20,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 12:27:20,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:20,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 12:27:20,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:20,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-24 12:27:20,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:20,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 12:27:20,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:20,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 12:27:20,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:20,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 12:27:20,712 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 12:27:20,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723028004] [2021-03-24 12:27:20,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 12:27:20,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 12:27:20,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239244181] [2021-03-24 12:27:20,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 12:27:20,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 12:27:20,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 12:27:20,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-24 12:27:20,719 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 137 [2021-03-24 12:27:20,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 40 transitions, 102 flow. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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 12:27:20,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 12:27:20,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 137 [2021-03-24 12:27:20,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 12:27:20,796 INFO L129 PetriNetUnfolder]: 7/90 cut-off events. [2021-03-24 12:27:20,797 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-24 12:27:20,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 90 events. 7/90 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 142 event pairs, 4 based on Foata normal form. 4/93 useless extension candidates. Maximal degree in co-relation 139. Up to 16 conditions per place. [2021-03-24 12:27:20,800 INFO L132 encePairwiseOnDemand]: 129/137 looper letters, 6 selfloop transitions, 8 changer transitions 1/43 dead transitions. [2021-03-24 12:27:20,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 138 flow [2021-03-24 12:27:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 12:27:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 12:27:20,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 408 transitions. [2021-03-24 12:27:20,802 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5956204379562043 [2021-03-24 12:27:20,802 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 408 transitions. [2021-03-24 12:27:20,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 408 transitions. [2021-03-24 12:27:20,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 12:27:20,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 408 transitions. [2021-03-24 12:27:20,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.6) internal successors, (408), 5 states have internal predecessors, (408), 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 12:27:20,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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 12:27:20,808 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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 12:27:20,808 INFO L185 Difference]: Start difference. First operand has 66 places, 40 transitions, 102 flow. Second operand 5 states and 408 transitions. [2021-03-24 12:27:20,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 138 flow [2021-03-24 12:27:20,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 43 transitions, 122 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-24 12:27:20,810 INFO L241 Difference]: Finished difference. Result has 49 places, 41 transitions, 112 flow [2021-03-24 12:27:20,810 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=112, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2021-03-24 12:27:20,811 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 0 predicate places. [2021-03-24 12:27:20,811 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 112 flow [2021-03-24 12:27:20,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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 12:27:20,815 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 12:27:20,815 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 12:27:20,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 12:27:20,815 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 12:27:20,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 12:27:20,817 INFO L82 PathProgramCache]: Analyzing trace with hash 540268815, now seen corresponding path program 1 times [2021-03-24 12:27:20,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 12:27:20,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201648098] [2021-03-24 12:27:20,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 12:27:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 12:27:20,868 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 12:27:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 12:27:20,891 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 12:27:20,915 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 12:27:20,915 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 12:27:20,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 12:27:20,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 12:27:20 BasicIcfg [2021-03-24 12:27:20,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 12:27:20,952 INFO L168 Benchmark]: Toolchain (without parser) took 3644.07 ms. Allocated memory was 255.9 MB in the beginning and 459.3 MB in the end (delta: 203.4 MB). Free memory was 235.7 MB in the beginning and 313.3 MB in the end (delta: -77.6 MB). Peak memory consumption was 124.2 MB. Max. memory is 16.0 GB. [2021-03-24 12:27:20,953 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 12:27:20,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.33 ms. Allocated memory was 255.9 MB in the beginning and 381.7 MB in the end (delta: 125.8 MB). Free memory was 235.7 MB in the beginning and 346.6 MB in the end (delta: -110.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-24 12:27:20,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.33 ms. Allocated memory is still 381.7 MB. Free memory was 346.6 MB in the beginning and 344.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 12:27:20,958 INFO L168 Benchmark]: Boogie Preprocessor took 33.68 ms. Allocated memory is still 381.7 MB. Free memory was 344.5 MB in the beginning and 343.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 12:27:20,959 INFO L168 Benchmark]: RCFGBuilder took 423.35 ms. Allocated memory is still 381.7 MB. Free memory was 343.1 MB in the beginning and 355.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. [2021-03-24 12:27:20,959 INFO L168 Benchmark]: TraceAbstraction took 2742.07 ms. Allocated memory was 381.7 MB in the beginning and 459.3 MB in the end (delta: 77.6 MB). Free memory was 355.5 MB in the beginning and 313.3 MB in the end (delta: 42.2 MB). Peak memory consumption was 119.1 MB. Max. memory is 16.0 GB. [2021-03-24 12:27:20,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 409.33 ms. Allocated memory was 255.9 MB in the beginning and 381.7 MB in the end (delta: 125.8 MB). Free memory was 235.7 MB in the beginning and 346.6 MB in the end (delta: -110.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.33 ms. Allocated memory is still 381.7 MB. Free memory was 346.6 MB in the beginning and 344.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.68 ms. Allocated memory is still 381.7 MB. Free memory was 344.5 MB in the beginning and 343.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 423.35 ms. Allocated memory is still 381.7 MB. Free memory was 343.1 MB in the beginning and 355.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2742.07 ms. Allocated memory was 381.7 MB in the beginning and 459.3 MB in the end (delta: 77.6 MB). Free memory was 355.5 MB in the beginning and 313.3 MB in the end (delta: 42.2 MB). Peak memory consumption was 119.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1588.6ms, 81 PlacesBefore, 49 PlacesAfterwards, 86 TransitionsBefore, 54 TransitionsAfterwards, 1386 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 41 TotalNumberOfCompositions, 1020 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 464, positive: 442, positive conditional: 0, positive unconditional: 442, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 369, positive: 361, positive conditional: 0, positive unconditional: 361, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 369, positive: 361, positive conditional: 0, positive unconditional: 361, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 464, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 369, unknown conditional: 0, unknown unconditional: 369] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - 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={7:0}, arg={11:0}, mutex1={9:0}, mutex2={10:0}] [L693] 1 int *p = (int *) arg; [L695] EXPR 1 \read(*p) VAL [\read(*p)=0, __global_lock={7:0}, arg={11:0}, arg={11:0}, mutex1={9:0}, mutex2={10:0}, p={11:0}] [L695] 1 (*p)++ VAL [(*p)++=0, \read(*p)=0, __global_lock={7:0}, arg={11:0}, arg={11:0}, mutex1={9:0}, mutex2={10:0}, p={11:0}] [L704] 0 \read(i) VAL [__global_lock={7:0}, arg={11:0}, arg={11:0}, mutex1={9:0}, mutex2={10:0}, p={11:0}] [L684] COND TRUE 0 !(cond) [L684] 0 reach_error() VAL [__global_lock={7:0}, arg={11:0}, arg={11:0}, mutex1={9:0}, mutex2={10:0}, p={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 2587.2ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 343.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1691.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 23 SDtfs, 59 SDslu, 51 SDs, 0 SdLazy, 98 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 111.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=2, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.1ms SsaConstructionTime, 128.4ms SatisfiabilityAnalysisTime, 210.5ms InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 269 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...