/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-NoLbe-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 10:25:27,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 10:25:27,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 10:25:27,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 10:25:27,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 10:25:27,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 10:25:27,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 10:25:27,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 10:25:27,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 10:25:27,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 10:25:27,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 10:25:27,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 10:25:27,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 10:25:27,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 10:25:27,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 10:25:27,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 10:25:27,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 10:25:27,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 10:25:27,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 10:25:27,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 10:25:27,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 10:25:27,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 10:25:27,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 10:25:27,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 10:25:27,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 10:25:27,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 10:25:27,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 10:25:27,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 10:25:27,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 10:25:27,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 10:25:27,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 10:25:27,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 10:25:27,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 10:25:27,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 10:25:27,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 10:25:27,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 10:25:27,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 10:25:27,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 10:25:27,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 10:25:27,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 10:25:27,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 10:25:27,191 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-NoLbe-After.epf [2022-01-19 10:25:27,212 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 10:25:27,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 10:25:27,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 10:25:27,212 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 10:25:27,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 10:25:27,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 10:25:27,213 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 10:25:27,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 10:25:27,213 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 10:25:27,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 10:25:27,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 10:25:27,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 10:25:27,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 10:25:27,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 10:25:27,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 10:25:27,214 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 10:25:27,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 10:25:27,214 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 10:25:27,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 10:25:27,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 10:25:27,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 10:25:27,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 10:25:27,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 10:25:27,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 10:25:27,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 10:25:27,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 10:25:27,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 10:25:27,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 10:25:27,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 10:25:27,218 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 10:25:27,218 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 10:25:27,218 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 10:25:27,218 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 10:25:27,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 10:25:27,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 10:25:27,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 10:25:27,490 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 10:25:27,491 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 10:25:27,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2022-01-19 10:25:27,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749fea7ad/6b5012b65fd746f59825c55b840c5a5e/FLAG5ce8d1ec9 [2022-01-19 10:25:27,907 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 10:25:27,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2022-01-19 10:25:27,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749fea7ad/6b5012b65fd746f59825c55b840c5a5e/FLAG5ce8d1ec9 [2022-01-19 10:25:28,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749fea7ad/6b5012b65fd746f59825c55b840c5a5e [2022-01-19 10:25:28,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 10:25:28,326 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 10:25:28,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 10:25:28,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 10:25:28,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 10:25:28,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750e2e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28, skipping insertion in model container [2022-01-19 10:25:28,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 10:25:28,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 10:25:28,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30247,30260] [2022-01-19 10:25:28,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30452,30465] [2022-01-19 10:25:28,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 10:25:28,666 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 10:25:28,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30247,30260] [2022-01-19 10:25:28,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30452,30465] [2022-01-19 10:25:28,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 10:25:28,730 INFO L208 MainTranslator]: Completed translation [2022-01-19 10:25:28,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28 WrapperNode [2022-01-19 10:25:28,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 10:25:28,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 10:25:28,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 10:25:28,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 10:25:28,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,776 INFO L137 Inliner]: procedures = 169, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2022-01-19 10:25:28,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 10:25:28,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 10:25:28,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 10:25:28,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 10:25:28,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 10:25:28,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 10:25:28,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 10:25:28,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 10:25:28,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28" (1/1) ... [2022-01-19 10:25:28,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 10:25:28,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 10:25:28,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 10:25:28,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 10:25:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2022-01-19 10:25:28,862 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2022-01-19 10:25:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 10:25:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2022-01-19 10:25:28,862 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2022-01-19 10:25:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 10:25:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 10:25:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 10:25:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 10:25:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 10:25:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 10:25:28,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 10:25:28,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 10:25:28,864 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 10:25:28,947 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 10:25:28,948 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 10:25:29,131 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 10:25:29,135 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 10:25:29,135 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 10:25:29,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 10:25:29 BoogieIcfgContainer [2022-01-19 10:25:29,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 10:25:29,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 10:25:29,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 10:25:29,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 10:25:29,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 10:25:28" (1/3) ... [2022-01-19 10:25:29,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251d13e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 10:25:29, skipping insertion in model container [2022-01-19 10:25:29,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:25:28" (2/3) ... [2022-01-19 10:25:29,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251d13e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 10:25:29, skipping insertion in model container [2022-01-19 10:25:29,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 10:25:29" (3/3) ... [2022-01-19 10:25:29,144 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2022-01-19 10:25:29,147 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 10:25:29,147 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-19 10:25:29,147 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 10:25:29,188 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,188 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,189 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,189 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,189 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,189 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,189 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,189 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,189 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,190 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,190 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,190 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,191 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,191 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,191 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,191 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,192 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,192 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,193 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,193 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,193 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,193 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,194 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,194 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,194 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,194 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,195 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,195 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,195 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,195 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,196 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,196 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,196 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,196 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,196 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,197 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,204 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,204 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,204 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,204 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,205 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,205 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,207 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,208 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,208 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,208 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,208 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:25:29,213 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 10:25:29,245 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 10:25:29,254 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 10:25:29,254 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-19 10:25:29,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 102 transitions, 220 flow [2022-01-19 10:25:29,305 INFO L129 PetriNetUnfolder]: 5/100 cut-off events. [2022-01-19 10:25:29,305 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 10:25:29,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 5/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 98 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2022-01-19 10:25:29,308 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 102 transitions, 220 flow [2022-01-19 10:25:29,311 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 90 transitions, 189 flow [2022-01-19 10:25:29,331 INFO L129 PetriNetUnfolder]: 1/62 cut-off events. [2022-01-19 10:25:29,332 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 10:25:29,332 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:25:29,332 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 10:25:29,332 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-19 10:25:29,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:25:29,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2073878886, now seen corresponding path program 1 times [2022-01-19 10:25:29,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:25:29,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041017359] [2022-01-19 10:25:29,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:25:29,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:25:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:25:29,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:25:29,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:25:29,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041017359] [2022-01-19 10:25:29,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041017359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:25:29,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:25:29,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 10:25:29,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294435749] [2022-01-19 10:25:29,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:25:29,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 10:25:29,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:25:29,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 10:25:29,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 10:25:29,594 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 102 [2022-01-19 10:25:29,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 90 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2022-01-19 10:25:29,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:25:29,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 102 [2022-01-19 10:25:29,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:25:29,652 INFO L129 PetriNetUnfolder]: 3/99 cut-off events. [2022-01-19 10:25:29,652 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 10:25:29,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 99 events. 3/99 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs, 1 based on Foata normal form. 6/99 useless extension candidates. Maximal degree in co-relation 65. Up to 7 conditions per place. [2022-01-19 10:25:29,654 INFO L132 encePairwiseOnDemand]: 96/102 looper letters, 6 selfloop transitions, 2 changer transitions 1/85 dead transitions. [2022-01-19 10:25:29,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 85 transitions, 198 flow [2022-01-19 10:25:29,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 10:25:29,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 10:25:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2022-01-19 10:25:29,674 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9052287581699346 [2022-01-19 10:25:29,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2022-01-19 10:25:29,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2022-01-19 10:25:29,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:25:29,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2022-01-19 10:25:29,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2022-01-19 10:25:29,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 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) [2022-01-19 10:25:29,688 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 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) [2022-01-19 10:25:29,689 INFO L186 Difference]: Start difference. First operand has 92 places, 90 transitions, 189 flow. Second operand 3 states and 277 transitions. [2022-01-19 10:25:29,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 85 transitions, 198 flow [2022-01-19 10:25:29,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 85 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 10:25:29,696 INFO L242 Difference]: Finished difference. Result has 89 places, 83 transitions, 174 flow [2022-01-19 10:25:29,697 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=89, PETRI_TRANSITIONS=83} [2022-01-19 10:25:29,701 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, -3 predicate places. [2022-01-19 10:25:29,701 INFO L470 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 174 flow [2022-01-19 10:25:29,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2022-01-19 10:25:29,702 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:25:29,702 INFO L254 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, 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] [2022-01-19 10:25:29,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 10:25:29,702 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-19 10:25:29,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:25:29,703 INFO L85 PathProgramCache]: Analyzing trace with hash -517979552, now seen corresponding path program 1 times [2022-01-19 10:25:29,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:25:29,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267603689] [2022-01-19 10:25:29,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:25:29,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:25:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:25:29,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:25:29,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:25:29,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267603689] [2022-01-19 10:25:29,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267603689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:25:29,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:25:29,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 10:25:29,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169522058] [2022-01-19 10:25:29,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:25:29,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 10:25:29,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:25:29,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 10:25:29,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 10:25:29,791 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 102 [2022-01-19 10:25:29,791 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 83 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2022-01-19 10:25:29,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:25:29,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 102 [2022-01-19 10:25:29,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:25:29,837 INFO L129 PetriNetUnfolder]: 13/148 cut-off events. [2022-01-19 10:25:29,837 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 10:25:29,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 148 events. 13/148 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 395 event pairs, 2 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 143. Up to 24 conditions per place. [2022-01-19 10:25:29,839 INFO L132 encePairwiseOnDemand]: 97/102 looper letters, 12 selfloop transitions, 3 changer transitions 1/88 dead transitions. [2022-01-19 10:25:29,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 88 transitions, 217 flow [2022-01-19 10:25:29,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 10:25:29,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 10:25:29,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2022-01-19 10:25:29,841 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8986928104575164 [2022-01-19 10:25:29,841 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2022-01-19 10:25:29,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2022-01-19 10:25:29,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:25:29,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2022-01-19 10:25:29,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2022-01-19 10:25:29,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 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) [2022-01-19 10:25:29,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 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) [2022-01-19 10:25:29,844 INFO L186 Difference]: Start difference. First operand has 89 places, 83 transitions, 174 flow. Second operand 3 states and 275 transitions. [2022-01-19 10:25:29,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 88 transitions, 217 flow [2022-01-19 10:25:29,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 88 transitions, 213 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 10:25:29,847 INFO L242 Difference]: Finished difference. Result has 90 places, 84 transitions, 192 flow [2022-01-19 10:25:29,847 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=90, PETRI_TRANSITIONS=84} [2022-01-19 10:25:29,848 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, -2 predicate places. [2022-01-19 10:25:29,848 INFO L470 AbstractCegarLoop]: Abstraction has has 90 places, 84 transitions, 192 flow [2022-01-19 10:25:29,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2022-01-19 10:25:29,849 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:25:29,849 INFO L254 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, 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] [2022-01-19 10:25:29,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 10:25:29,849 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-19 10:25:29,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:25:29,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2030798540, now seen corresponding path program 1 times [2022-01-19 10:25:29,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:25:29,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855834908] [2022-01-19 10:25:29,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:25:29,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:25:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:25:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:25:29,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:25:29,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855834908] [2022-01-19 10:25:29,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855834908] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:25:29,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:25:29,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 10:25:29,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090440642] [2022-01-19 10:25:29,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:25:29,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 10:25:29,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:25:29,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 10:25:29,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 10:25:29,917 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 102 [2022-01-19 10:25:29,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2022-01-19 10:25:29,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:25:29,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 102 [2022-01-19 10:25:29,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:25:29,949 INFO L129 PetriNetUnfolder]: 7/131 cut-off events. [2022-01-19 10:25:29,949 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-01-19 10:25:29,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 131 events. 7/131 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 301 event pairs, 3 based on Foata normal form. 7/136 useless extension candidates. Maximal degree in co-relation 126. Up to 19 conditions per place. [2022-01-19 10:25:29,950 INFO L132 encePairwiseOnDemand]: 97/102 looper letters, 9 selfloop transitions, 3 changer transitions 1/85 dead transitions. [2022-01-19 10:25:29,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 85 transitions, 219 flow [2022-01-19 10:25:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 10:25:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 10:25:29,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2022-01-19 10:25:29,955 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8921568627450981 [2022-01-19 10:25:29,955 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2022-01-19 10:25:29,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2022-01-19 10:25:29,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:25:29,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2022-01-19 10:25:29,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2022-01-19 10:25:29,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 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) [2022-01-19 10:25:29,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 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) [2022-01-19 10:25:29,957 INFO L186 Difference]: Start difference. First operand has 90 places, 84 transitions, 192 flow. Second operand 3 states and 273 transitions. [2022-01-19 10:25:29,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 85 transitions, 219 flow [2022-01-19 10:25:29,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 85 transitions, 215 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 10:25:29,958 INFO L242 Difference]: Finished difference. Result has 91 places, 83 transitions, 193 flow [2022-01-19 10:25:29,958 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2022-01-19 10:25:29,959 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, -1 predicate places. [2022-01-19 10:25:29,959 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 193 flow [2022-01-19 10:25:29,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2022-01-19 10:25:29,959 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:25:29,959 INFO L254 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 10:25:29,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 10:25:29,960 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-19 10:25:29,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:25:29,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1735004983, now seen corresponding path program 1 times [2022-01-19 10:25:29,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:25:29,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069451952] [2022-01-19 10:25:29,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:25:29,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:25:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:25:30,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:25:30,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:25:30,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069451952] [2022-01-19 10:25:30,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069451952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:25:30,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:25:30,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 10:25:30,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121671627] [2022-01-19 10:25:30,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:25:30,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 10:25:30,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:25:30,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 10:25:30,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 10:25:30,103 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 102 [2022-01-19 10:25:30,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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) [2022-01-19 10:25:30,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:25:30,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 102 [2022-01-19 10:25:30,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:25:30,180 INFO L129 PetriNetUnfolder]: 14/177 cut-off events. [2022-01-19 10:25:30,180 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-01-19 10:25:30,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 177 events. 14/177 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 533 event pairs, 7 based on Foata normal form. 2/177 useless extension candidates. Maximal degree in co-relation 179. Up to 35 conditions per place. [2022-01-19 10:25:30,180 INFO L132 encePairwiseOnDemand]: 96/102 looper letters, 18 selfloop transitions, 6 changer transitions 3/87 dead transitions. [2022-01-19 10:25:30,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 87 transitions, 258 flow [2022-01-19 10:25:30,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 10:25:30,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 10:25:30,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 394 transitions. [2022-01-19 10:25:30,183 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7725490196078432 [2022-01-19 10:25:30,183 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 394 transitions. [2022-01-19 10:25:30,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 394 transitions. [2022-01-19 10:25:30,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:25:30,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 394 transitions. [2022-01-19 10:25:30,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 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) [2022-01-19 10:25:30,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 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) [2022-01-19 10:25:30,185 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 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) [2022-01-19 10:25:30,185 INFO L186 Difference]: Start difference. First operand has 91 places, 83 transitions, 193 flow. Second operand 5 states and 394 transitions. [2022-01-19 10:25:30,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 87 transitions, 258 flow [2022-01-19 10:25:30,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 87 transitions, 252 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 10:25:30,189 INFO L242 Difference]: Finished difference. Result has 93 places, 83 transitions, 199 flow [2022-01-19 10:25:30,189 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=93, PETRI_TRANSITIONS=83} [2022-01-19 10:25:30,189 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, 1 predicate places. [2022-01-19 10:25:30,189 INFO L470 AbstractCegarLoop]: Abstraction has has 93 places, 83 transitions, 199 flow [2022-01-19 10:25:30,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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) [2022-01-19 10:25:30,190 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:25:30,190 INFO L254 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 10:25:30,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 10:25:30,190 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-19 10:25:30,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:25:30,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1926867913, now seen corresponding path program 2 times [2022-01-19 10:25:30,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:25:30,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831459607] [2022-01-19 10:25:30,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:25:30,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:25:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:25:30,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:25:30,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:25:30,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831459607] [2022-01-19 10:25:30,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831459607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:25:30,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:25:30,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 10:25:30,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69088620] [2022-01-19 10:25:30,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:25:30,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 10:25:30,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:25:30,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 10:25:30,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 10:25:30,228 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 102 [2022-01-19 10:25:30,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 83 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2022-01-19 10:25:30,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:25:30,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 102 [2022-01-19 10:25:30,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:25:30,240 INFO L129 PetriNetUnfolder]: 1/102 cut-off events. [2022-01-19 10:25:30,241 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 10:25:30,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 102 events. 1/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 2/103 useless extension candidates. Maximal degree in co-relation 91. Up to 6 conditions per place. [2022-01-19 10:25:30,241 INFO L132 encePairwiseOnDemand]: 100/102 looper letters, 0 selfloop transitions, 0 changer transitions 79/79 dead transitions. [2022-01-19 10:25:30,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 79 transitions, 202 flow [2022-01-19 10:25:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 10:25:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 10:25:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2022-01-19 10:25:30,242 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8921568627450981 [2022-01-19 10:25:30,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2022-01-19 10:25:30,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2022-01-19 10:25:30,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:25:30,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2022-01-19 10:25:30,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2022-01-19 10:25:30,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 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) [2022-01-19 10:25:30,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 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) [2022-01-19 10:25:30,244 INFO L186 Difference]: Start difference. First operand has 93 places, 83 transitions, 199 flow. Second operand 3 states and 273 transitions. [2022-01-19 10:25:30,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 79 transitions, 202 flow [2022-01-19 10:25:30,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 79 transitions, 185 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-01-19 10:25:30,245 INFO L242 Difference]: Finished difference. Result has 85 places, 0 transitions, 0 flow [2022-01-19 10:25:30,245 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=85, PETRI_TRANSITIONS=0} [2022-01-19 10:25:30,246 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, -7 predicate places. [2022-01-19 10:25:30,246 INFO L470 AbstractCegarLoop]: Abstraction has has 85 places, 0 transitions, 0 flow [2022-01-19 10:25:30,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2022-01-19 10:25:30,248 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-19 10:25:30,248 INFO L764 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-19 10:25:30,248 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2022-01-19 10:25:30,249 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2022-01-19 10:25:30,249 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-01-19 10:25:30,249 INFO L764 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-19 10:25:30,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 10:25:30,251 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-01-19 10:25:30,253 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 10:25:30,254 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 10:25:30,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 10:25:30 BasicIcfg [2022-01-19 10:25:30,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 10:25:30,256 INFO L158 Benchmark]: Toolchain (without parser) took 1929.83ms. Allocated memory was 417.3MB in the beginning and 501.2MB in the end (delta: 83.9MB). Free memory was 361.4MB in the beginning and 330.9MB in the end (delta: 30.4MB). Peak memory consumption was 114.7MB. Max. memory is 16.0GB. [2022-01-19 10:25:30,257 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 417.3MB. Free memory is still 379.8MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 10:25:30,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.63ms. Allocated memory was 417.3MB in the beginning and 501.2MB in the end (delta: 83.9MB). Free memory was 361.1MB in the beginning and 466.2MB in the end (delta: -105.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.0GB. [2022-01-19 10:25:30,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.33ms. Allocated memory is still 501.2MB. Free memory was 466.2MB in the beginning and 464.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 10:25:30,258 INFO L158 Benchmark]: Boogie Preprocessor took 23.42ms. Allocated memory is still 501.2MB. Free memory was 464.1MB in the beginning and 462.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 10:25:30,258 INFO L158 Benchmark]: RCFGBuilder took 336.00ms. Allocated memory is still 501.2MB. Free memory was 462.0MB in the beginning and 447.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-19 10:25:30,258 INFO L158 Benchmark]: TraceAbstraction took 1118.15ms. Allocated memory is still 501.2MB. Free memory was 447.3MB in the beginning and 330.9MB in the end (delta: 116.4MB). Peak memory consumption was 117.4MB. Max. memory is 16.0GB. [2022-01-19 10:25:30,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 417.3MB. Free memory is still 379.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 402.63ms. Allocated memory was 417.3MB in the beginning and 501.2MB in the end (delta: 83.9MB). Free memory was 361.1MB in the beginning and 466.2MB in the end (delta: -105.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.33ms. Allocated memory is still 501.2MB. Free memory was 466.2MB in the beginning and 464.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.42ms. Allocated memory is still 501.2MB. Free memory was 464.1MB in the beginning and 462.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 336.00ms. Allocated memory is still 501.2MB. Free memory was 462.0MB in the beginning and 447.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 1118.15ms. Allocated memory is still 501.2MB. Free memory was 447.3MB in the beginning and 330.9MB in the end (delta: 116.4MB). Peak memory consumption was 117.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 702]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 710]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 131 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 20 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=4, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 555 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 10:25:30,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...