./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 21:14:44,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 21:14:44,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 21:14:44,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 21:14:44,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 21:14:44,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 21:14:44,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 21:14:44,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 21:14:44,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 21:14:44,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 21:14:44,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 21:14:44,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 21:14:44,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 21:14:44,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 21:14:44,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 21:14:44,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 21:14:44,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 21:14:44,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 21:14:44,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 21:14:44,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 21:14:44,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 21:14:44,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 21:14:44,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 21:14:44,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 21:14:44,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 21:14:44,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 21:14:44,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 21:14:44,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 21:14:44,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 21:14:44,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 21:14:44,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 21:14:44,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 21:14:44,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 21:14:44,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 21:14:44,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 21:14:44,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 21:14:44,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 21:14:44,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 21:14:44,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 21:14:44,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 21:14:44,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 21:14:44,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 21:14:44,164 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 21:14:44,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 21:14:44,165 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 21:14:44,165 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 21:14:44,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 21:14:44,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 21:14:44,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 21:14:44,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 21:14:44,167 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 21:14:44,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 21:14:44,168 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 21:14:44,168 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 21:14:44,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 21:14:44,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 21:14:44,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 21:14:44,169 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 21:14:44,169 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 21:14:44,169 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 21:14:44,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 21:14:44,170 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 21:14:44,170 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 21:14:44,170 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 21:14:44,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 21:14:44,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 21:14:44,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 21:14:44,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:14:44,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 21:14:44,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 21:14:44,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 21:14:44,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 21:14:44,172 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 21:14:44,172 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 21:14:44,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 21:14:44,172 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 21:14:44,172 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 21:14:44,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 21:14:44,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 21:14:44,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 21:14:44,492 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 21:14:44,492 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 21:14:44,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr.i [2023-08-29 21:14:45,761 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 21:14:46,110 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 21:14:46,110 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr.i [2023-08-29 21:14:46,139 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52f580d4/b2f24f6051f145b7ba4bee67c9711959/FLAGe4aae5179 [2023-08-29 21:14:46,155 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52f580d4/b2f24f6051f145b7ba4bee67c9711959 [2023-08-29 21:14:46,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 21:14:46,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 21:14:46,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 21:14:46,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 21:14:46,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 21:14:46,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:14:46" (1/1) ... [2023-08-29 21:14:46,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6866dff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:46, skipping insertion in model container [2023-08-29 21:14:46,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:14:46" (1/1) ... [2023-08-29 21:14:46,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 21:14:46,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 21:14:46,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:14:46,877 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 21:14:46,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:14:47,050 WARN L667 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 21:14:47,051 WARN L667 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 21:14:47,051 WARN L667 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 21:14:47,051 WARN L667 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 21:14:47,056 INFO L208 MainTranslator]: Completed translation [2023-08-29 21:14:47,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47 WrapperNode [2023-08-29 21:14:47,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 21:14:47,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 21:14:47,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 21:14:47,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 21:14:47,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (1/1) ... [2023-08-29 21:14:47,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (1/1) ... [2023-08-29 21:14:47,110 INFO L138 Inliner]: procedures = 524, calls = 69, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 131 [2023-08-29 21:14:47,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 21:14:47,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 21:14:47,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 21:14:47,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 21:14:47,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (1/1) ... [2023-08-29 21:14:47,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (1/1) ... [2023-08-29 21:14:47,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (1/1) ... [2023-08-29 21:14:47,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (1/1) ... [2023-08-29 21:14:47,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (1/1) ... [2023-08-29 21:14:47,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (1/1) ... [2023-08-29 21:14:47,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (1/1) ... [2023-08-29 21:14:47,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (1/1) ... [2023-08-29 21:14:47,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 21:14:47,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 21:14:47,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 21:14:47,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 21:14:47,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (1/1) ... [2023-08-29 21:14:47,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:14:47,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 21:14:47,205 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) [2023-08-29 21:14:47,219 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 [2023-08-29 21:14:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-08-29 21:14:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-08-29 21:14:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-29 21:14:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-08-29 21:14:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-08-29 21:14:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-08-29 21:14:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 21:14:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 21:14:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 21:14:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 21:14:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 21:14:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 21:14:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-08-29 21:14:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 21:14:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-08-29 21:14:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-08-29 21:14:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 21:14:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 21:14:47,248 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 21:14:47,552 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 21:14:47,554 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 21:14:47,766 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 21:14:47,773 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 21:14:47,773 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2023-08-29 21:14:47,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:14:47 BoogieIcfgContainer [2023-08-29 21:14:47,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 21:14:47,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 21:14:47,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 21:14:47,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 21:14:47,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:14:46" (1/3) ... [2023-08-29 21:14:47,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be48239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:14:47, skipping insertion in model container [2023-08-29 21:14:47,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:14:47" (2/3) ... [2023-08-29 21:14:47,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be48239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:14:47, skipping insertion in model container [2023-08-29 21:14:47,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:14:47" (3/3) ... [2023-08-29 21:14:47,783 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2023-08-29 21:14:47,798 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 21:14:47,798 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-29 21:14:47,798 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 21:14:47,886 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 21:14:47,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 242 transitions, 500 flow [2023-08-29 21:14:48,024 INFO L130 PetriNetUnfolder]: 32/240 cut-off events. [2023-08-29 21:14:48,024 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 21:14:48,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 32/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 532 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 140. Up to 5 conditions per place. [2023-08-29 21:14:48,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 242 transitions, 500 flow [2023-08-29 21:14:48,047 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 236 transitions, 484 flow [2023-08-29 21:14:48,050 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 21:14:48,069 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 236 transitions, 484 flow [2023-08-29 21:14:48,076 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 236 transitions, 484 flow [2023-08-29 21:14:48,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 236 transitions, 484 flow [2023-08-29 21:14:48,117 INFO L130 PetriNetUnfolder]: 32/236 cut-off events. [2023-08-29 21:14:48,117 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 21:14:48,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 236 events. 32/236 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 518 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 138. Up to 5 conditions per place. [2023-08-29 21:14:48,129 INFO L119 LiptonReduction]: Number of co-enabled transitions 11934 [2023-08-29 21:14:59,964 INFO L134 LiptonReduction]: Checked pairs total: 11201 [2023-08-29 21:14:59,965 INFO L136 LiptonReduction]: Total number of compositions: 263 [2023-08-29 21:14:59,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 21:14:59,979 INFO L357 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=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e9c4d0b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 21:14:59,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-29 21:14:59,980 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 21:14:59,981 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:14:59,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:14:59,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 21:14:59,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-29 21:14:59,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:14:59,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1008, now seen corresponding path program 1 times [2023-08-29 21:14:59,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:14:59,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84407968] [2023-08-29 21:14:59,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:14:59,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:15:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:00,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:00,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:15:00,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84407968] [2023-08-29 21:15:00,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84407968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:00,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:00,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 21:15:00,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408311104] [2023-08-29 21:15:00,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:00,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 21:15:00,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:15:00,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 21:15:00,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 21:15:00,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 505 [2023-08-29 21:15:00,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 56 transitions, 124 flow. Second operand has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 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) [2023-08-29 21:15:00,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:00,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 505 [2023-08-29 21:15:00,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:00,381 INFO L130 PetriNetUnfolder]: 194/348 cut-off events. [2023-08-29 21:15:00,381 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-29 21:15:00,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 348 events. 194/348 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1222 event pairs, 119 based on Foata normal form. 56/244 useless extension candidates. Maximal degree in co-relation 572. Up to 293 conditions per place. [2023-08-29 21:15:00,385 INFO L137 encePairwiseOnDemand]: 490/505 looper letters, 24 selfloop transitions, 0 changer transitions 1/33 dead transitions. [2023-08-29 21:15:00,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 128 flow [2023-08-29 21:15:00,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 21:15:00,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 21:15:00,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 462 transitions. [2023-08-29 21:15:00,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45742574257425744 [2023-08-29 21:15:00,399 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 462 transitions. [2023-08-29 21:15:00,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 462 transitions. [2023-08-29 21:15:00,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:00,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 462 transitions. [2023-08-29 21:15:00,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 231.0) internal successors, (462), 2 states have internal predecessors, (462), 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) [2023-08-29 21:15:00,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 505.0) internal successors, (1515), 3 states have internal predecessors, (1515), 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) [2023-08-29 21:15:00,412 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 505.0) internal successors, (1515), 3 states have internal predecessors, (1515), 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) [2023-08-29 21:15:00,413 INFO L175 Difference]: Start difference. First operand has 42 places, 56 transitions, 124 flow. Second operand 2 states and 462 transitions. [2023-08-29 21:15:00,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 128 flow [2023-08-29 21:15:00,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 120 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 21:15:00,418 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 68 flow [2023-08-29 21:15:00,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=68, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2023-08-29 21:15:00,422 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -9 predicate places. [2023-08-29 21:15:00,422 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 68 flow [2023-08-29 21:15:00,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 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) [2023-08-29 21:15:00,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:00,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 21:15:00,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 21:15:00,424 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-29 21:15:00,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:00,424 INFO L85 PathProgramCache]: Analyzing trace with hash 30712677, now seen corresponding path program 1 times [2023-08-29 21:15:00,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:15:00,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767415237] [2023-08-29 21:15:00,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:15:00,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:15:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:00,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:00,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:15:00,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767415237] [2023-08-29 21:15:00,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767415237] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:00,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:00,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:15:00,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857470439] [2023-08-29 21:15:00,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:00,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:15:00,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:15:00,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:15:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:15:00,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 505 [2023-08-29 21:15:00,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 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) [2023-08-29 21:15:00,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:00,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 505 [2023-08-29 21:15:00,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:00,830 INFO L130 PetriNetUnfolder]: 190/330 cut-off events. [2023-08-29 21:15:00,830 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 21:15:00,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 330 events. 190/330 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1114 event pairs, 118 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 621. Up to 285 conditions per place. [2023-08-29 21:15:00,833 INFO L137 encePairwiseOnDemand]: 501/505 looper letters, 22 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2023-08-29 21:15:00,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 112 flow [2023-08-29 21:15:00,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:15:00,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:15:00,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 623 transitions. [2023-08-29 21:15:00,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41122112211221123 [2023-08-29 21:15:00,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 623 transitions. [2023-08-29 21:15:00,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 623 transitions. [2023-08-29 21:15:00,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:00,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 623 transitions. [2023-08-29 21:15:00,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 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) [2023-08-29 21:15:00,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 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) [2023-08-29 21:15:00,847 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 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) [2023-08-29 21:15:00,847 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 68 flow. Second operand 3 states and 623 transitions. [2023-08-29 21:15:00,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 112 flow [2023-08-29 21:15:00,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 21:15:00,849 INFO L231 Difference]: Finished difference. Result has 32 places, 30 transitions, 68 flow [2023-08-29 21:15:00,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=32, PETRI_TRANSITIONS=30} [2023-08-29 21:15:00,850 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -10 predicate places. [2023-08-29 21:15:00,850 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 30 transitions, 68 flow [2023-08-29 21:15:00,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 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) [2023-08-29 21:15:00,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:00,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 21:15:00,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 21:15:00,852 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-29 21:15:00,855 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:00,855 INFO L85 PathProgramCache]: Analyzing trace with hash 30712678, now seen corresponding path program 1 times [2023-08-29 21:15:00,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:15:00,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401282189] [2023-08-29 21:15:00,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:15:00,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:15:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:01,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:01,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:15:01,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401282189] [2023-08-29 21:15:01,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401282189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:01,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:01,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:15:01,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612294552] [2023-08-29 21:15:01,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:01,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:15:01,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:15:01,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:15:01,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:15:01,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 505 [2023-08-29 21:15:01,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2023-08-29 21:15:01,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:01,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 505 [2023-08-29 21:15:01,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:01,145 INFO L130 PetriNetUnfolder]: 179/309 cut-off events. [2023-08-29 21:15:01,145 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 21:15:01,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 309 events. 179/309 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1037 event pairs, 110 based on Foata normal form. 6/185 useless extension candidates. Maximal degree in co-relation 581. Up to 264 conditions per place. [2023-08-29 21:15:01,147 INFO L137 encePairwiseOnDemand]: 501/505 looper letters, 20 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2023-08-29 21:15:01,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 108 flow [2023-08-29 21:15:01,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:15:01,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:15:01,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2023-08-29 21:15:01,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42178217821782177 [2023-08-29 21:15:01,149 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 639 transitions. [2023-08-29 21:15:01,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 639 transitions. [2023-08-29 21:15:01,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:01,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 639 transitions. [2023-08-29 21:15:01,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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) [2023-08-29 21:15:01,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 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) [2023-08-29 21:15:01,155 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 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) [2023-08-29 21:15:01,155 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 68 flow. Second operand 3 states and 639 transitions. [2023-08-29 21:15:01,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 108 flow [2023-08-29 21:15:01,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 104 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:15:01,157 INFO L231 Difference]: Finished difference. Result has 30 places, 28 transitions, 64 flow [2023-08-29 21:15:01,157 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=30, PETRI_TRANSITIONS=28} [2023-08-29 21:15:01,158 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -12 predicate places. [2023-08-29 21:15:01,158 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 64 flow [2023-08-29 21:15:01,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2023-08-29 21:15:01,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:01,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:15:01,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 21:15:01,159 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-29 21:15:01,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:01,160 INFO L85 PathProgramCache]: Analyzing trace with hash 134010446, now seen corresponding path program 1 times [2023-08-29 21:15:01,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:15:01,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4915565] [2023-08-29 21:15:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:15:01,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:15:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:01,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:01,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:15:01,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4915565] [2023-08-29 21:15:01,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4915565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:01,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:01,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:15:01,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488659828] [2023-08-29 21:15:01,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:01,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 21:15:01,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:15:01,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 21:15:01,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 21:15:01,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 505 [2023-08-29 21:15:01,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 195.75) internal successors, (783), 4 states have internal predecessors, (783), 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) [2023-08-29 21:15:01,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:01,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 505 [2023-08-29 21:15:01,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:01,489 INFO L130 PetriNetUnfolder]: 242/391 cut-off events. [2023-08-29 21:15:01,490 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-29 21:15:01,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 757 conditions, 391 events. 242/391 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1261 event pairs, 153 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 753. Up to 354 conditions per place. [2023-08-29 21:15:01,492 INFO L137 encePairwiseOnDemand]: 502/505 looper letters, 22 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-08-29 21:15:01,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 27 transitions, 110 flow [2023-08-29 21:15:01,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:15:01,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:15:01,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 607 transitions. [2023-08-29 21:15:01,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40066006600660065 [2023-08-29 21:15:01,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 607 transitions. [2023-08-29 21:15:01,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 607 transitions. [2023-08-29 21:15:01,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:01,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 607 transitions. [2023-08-29 21:15:01,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2023-08-29 21:15:01,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 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) [2023-08-29 21:15:01,500 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 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) [2023-08-29 21:15:01,500 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 64 flow. Second operand 3 states and 607 transitions. [2023-08-29 21:15:01,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 27 transitions, 110 flow [2023-08-29 21:15:01,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:15:01,501 INFO L231 Difference]: Finished difference. Result has 29 places, 27 transitions, 62 flow [2023-08-29 21:15:01,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=29, PETRI_TRANSITIONS=27} [2023-08-29 21:15:01,502 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -13 predicate places. [2023-08-29 21:15:01,502 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 27 transitions, 62 flow [2023-08-29 21:15:01,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 195.75) internal successors, (783), 4 states have internal predecessors, (783), 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) [2023-08-29 21:15:01,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:01,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:15:01,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 21:15:01,504 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-29 21:15:01,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:01,504 INFO L85 PathProgramCache]: Analyzing trace with hash 134010447, now seen corresponding path program 1 times [2023-08-29 21:15:01,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:15:01,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665637564] [2023-08-29 21:15:01,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:15:01,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:15:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:01,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:01,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:15:01,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665637564] [2023-08-29 21:15:01,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665637564] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:01,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:01,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:15:01,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012411370] [2023-08-29 21:15:01,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:01,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:15:01,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:15:01,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:15:01,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:15:01,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 505 [2023-08-29 21:15:01,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 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) [2023-08-29 21:15:01,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:01,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 505 [2023-08-29 21:15:01,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:01,691 INFO L130 PetriNetUnfolder]: 236/381 cut-off events. [2023-08-29 21:15:01,691 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-29 21:15:01,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 735 conditions, 381 events. 236/381 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1218 event pairs, 148 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 731. Up to 342 conditions per place. [2023-08-29 21:15:01,693 INFO L137 encePairwiseOnDemand]: 502/505 looper letters, 20 selfloop transitions, 2 changer transitions 1/26 dead transitions. [2023-08-29 21:15:01,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 26 transitions, 106 flow [2023-08-29 21:15:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:15:01,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:15:01,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 630 transitions. [2023-08-29 21:15:01,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4158415841584158 [2023-08-29 21:15:01,695 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 630 transitions. [2023-08-29 21:15:01,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 630 transitions. [2023-08-29 21:15:01,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:01,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 630 transitions. [2023-08-29 21:15:01,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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) [2023-08-29 21:15:01,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 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) [2023-08-29 21:15:01,701 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 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) [2023-08-29 21:15:01,701 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 62 flow. Second operand 3 states and 630 transitions. [2023-08-29 21:15:01,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 26 transitions, 106 flow [2023-08-29 21:15:01,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 26 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:15:01,703 INFO L231 Difference]: Finished difference. Result has 28 places, 25 transitions, 58 flow [2023-08-29 21:15:01,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=28, PETRI_TRANSITIONS=25} [2023-08-29 21:15:01,705 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -14 predicate places. [2023-08-29 21:15:01,706 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 25 transitions, 58 flow [2023-08-29 21:15:01,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 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) [2023-08-29 21:15:01,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:01,706 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:15:01,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 21:15:01,707 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-29 21:15:01,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:01,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1519528871, now seen corresponding path program 1 times [2023-08-29 21:15:01,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:15:01,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843493959] [2023-08-29 21:15:01,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:15:01,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:15:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:02,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:15:02,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843493959] [2023-08-29 21:15:02,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843493959] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:02,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:02,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:15:02,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865990985] [2023-08-29 21:15:02,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:02,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:15:02,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:15:02,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:15:02,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:15:02,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 505 [2023-08-29 21:15:02,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 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) [2023-08-29 21:15:02,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:02,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 505 [2023-08-29 21:15:02,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:02,250 INFO L130 PetriNetUnfolder]: 154/260 cut-off events. [2023-08-29 21:15:02,250 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 21:15:02,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 260 events. 154/260 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 776 event pairs, 91 based on Foata normal form. 1/163 useless extension candidates. Maximal degree in co-relation 491. Up to 225 conditions per place. [2023-08-29 21:15:02,251 INFO L137 encePairwiseOnDemand]: 503/505 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2023-08-29 21:15:02,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 24 transitions, 94 flow [2023-08-29 21:15:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:15:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:15:02,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 630 transitions. [2023-08-29 21:15:02,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4158415841584158 [2023-08-29 21:15:02,254 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 630 transitions. [2023-08-29 21:15:02,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 630 transitions. [2023-08-29 21:15:02,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:02,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 630 transitions. [2023-08-29 21:15:02,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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) [2023-08-29 21:15:02,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 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) [2023-08-29 21:15:02,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 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) [2023-08-29 21:15:02,260 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 58 flow. Second operand 3 states and 630 transitions. [2023-08-29 21:15:02,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 24 transitions, 94 flow [2023-08-29 21:15:02,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 93 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:15:02,261 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2023-08-29 21:15:02,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2023-08-29 21:15:02,264 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -15 predicate places. [2023-08-29 21:15:02,265 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2023-08-29 21:15:02,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 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) [2023-08-29 21:15:02,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-29 21:15:02,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-29 21:15:02,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (8 of 11 remaining) [2023-08-29 21:15:02,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-29 21:15:02,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-29 21:15:02,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-29 21:15:02,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2023-08-29 21:15:02,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2023-08-29 21:15:02,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2023-08-29 21:15:02,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-29 21:15:02,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-29 21:15:02,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 21:15:02,274 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-29 21:15:02,277 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 21:15:02,277 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 21:15:02,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:15:02 BasicIcfg [2023-08-29 21:15:02,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 21:15:02,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 21:15:02,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 21:15:02,283 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 21:15:02,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:14:47" (3/4) ... [2023-08-29 21:15:02,285 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 21:15:02,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2023-08-29 21:15:02,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2023-08-29 21:15:02,296 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2023-08-29 21:15:02,296 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-29 21:15:02,296 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-08-29 21:15:02,297 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 21:15:02,297 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 21:15:02,337 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 21:15:02,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 21:15:02,337 INFO L158 Benchmark]: Toolchain (without parser) took 16177.47ms. Allocated memory was 69.2MB in the beginning and 151.0MB in the end (delta: 81.8MB). Free memory was 31.9MB in the beginning and 75.9MB in the end (delta: -44.0MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2023-08-29 21:15:02,338 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:15:02,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 894.46ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 31.7MB in the beginning and 60.5MB in the end (delta: -28.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2023-08-29 21:15:02,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.75ms. Allocated memory is still 100.7MB. Free memory was 60.5MB in the beginning and 57.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:15:02,338 INFO L158 Benchmark]: Boogie Preprocessor took 55.62ms. Allocated memory is still 100.7MB. Free memory was 57.2MB in the beginning and 53.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 21:15:02,339 INFO L158 Benchmark]: RCFGBuilder took 608.54ms. Allocated memory is still 100.7MB. Free memory was 53.9MB in the beginning and 52.4MB in the end (delta: 1.5MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2023-08-29 21:15:02,339 INFO L158 Benchmark]: TraceAbstraction took 14504.18ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 51.9MB in the beginning and 80.1MB in the end (delta: -28.1MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-08-29 21:15:02,339 INFO L158 Benchmark]: Witness Printer took 54.38ms. Allocated memory is still 151.0MB. Free memory was 79.0MB in the beginning and 75.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 21:15:02,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 894.46ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 31.7MB in the beginning and 60.5MB in the end (delta: -28.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.75ms. Allocated memory is still 100.7MB. Free memory was 60.5MB in the beginning and 57.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.62ms. Allocated memory is still 100.7MB. Free memory was 57.2MB in the beginning and 53.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 608.54ms. Allocated memory is still 100.7MB. Free memory was 53.9MB in the beginning and 52.4MB in the end (delta: 1.5MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 14504.18ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 51.9MB in the beginning and 80.1MB in the end (delta: -28.1MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Witness Printer took 54.38ms. Allocated memory is still 151.0MB. Free memory was 79.0MB in the beginning and 75.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.9s, 211 PlacesBefore, 42 PlacesAfterwards, 236 TransitionsBefore, 56 TransitionsAfterwards, 11934 CoEnabledTransitionPairs, 8 FixpointIterations, 90 TrivialSequentialCompositions, 127 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 26 ConcurrentYvCompositions, 11 ChoiceCompositions, 263 TotalNumberOfCompositions, 11201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10607, independent: 10588, independent conditional: 0, independent unconditional: 10588, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6478, independent: 6470, independent conditional: 0, independent unconditional: 6470, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10607, independent: 4118, independent conditional: 0, independent unconditional: 4118, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 6478, unknown conditional: 0, unknown unconditional: 6478] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1835]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 295 locations, 11 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: 14.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 747 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 621 IncrementalHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 55 mSDtfsCounter, 621 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=0, 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, 0.9s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 21:15:02,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE