./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/pthread-wmm/safe013_tso.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 0cdeed82108b12e5d5525e3abe542fd48b9a422ac7475147d5db7c8538ce4dc0 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:09:25,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:09:25,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:09:25,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:09:25,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:09:25,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:09:25,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:09:25,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:09:25,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:09:25,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:09:25,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:09:25,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:09:25,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:09:25,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:09:25,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:09:25,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:09:25,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:09:25,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:09:25,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:09:25,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:09:25,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:09:25,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:09:25,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:09:25,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:09:25,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:09:25,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:09:25,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:09:25,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:09:25,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:09:25,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:09:25,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:09:25,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:09:25,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:09:25,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:09:25,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:09:25,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:09:25,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:09:25,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:09:25,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:09:25,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:09:25,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:09:25,295 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:09:25,332 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:09:25,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:09:25,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:09:25,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:09:25,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:09:25,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:09:25,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:09:25,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:09:25,337 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:09:25,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:09:25,338 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:09:25,338 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:09:25,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:09:25,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:09:25,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:09:25,339 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:09:25,339 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:09:25,339 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:09:25,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:09:25,340 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:09:25,340 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:09:25,340 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:09:25,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:09:25,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:09:25,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:09:25,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:09:25,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:09:25,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:09:25,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:09:25,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:09:25,342 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:09:25,342 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:09:25,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:09:25,343 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:09:25,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cdeed82108b12e5d5525e3abe542fd48b9a422ac7475147d5db7c8538ce4dc0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:09:25,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:09:25,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:09:25,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:09:25,707 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:09:25,707 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:09:25,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.i [2023-08-30 03:09:26,984 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:09:27,269 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:09:27,270 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.i [2023-08-30 03:09:27,283 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b50d2337e/f1cd61152fa24a94b6b9bfaf07a26b51/FLAG2113b849a [2023-08-30 03:09:27,298 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b50d2337e/f1cd61152fa24a94b6b9bfaf07a26b51 [2023-08-30 03:09:27,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:09:27,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:09:27,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:09:27,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:09:27,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:09:27,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce853d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27, skipping insertion in model container [2023-08-30 03:09:27,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:09:27,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:09:27,540 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.i[945,958] [2023-08-30 03:09:27,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:09:27,748 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:09:27,763 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.i[945,958] [2023-08-30 03:09:27,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:09:27,873 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:09:27,873 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:09:27,879 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:09:27,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27 WrapperNode [2023-08-30 03:09:27,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:09:27,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:09:27,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:09:27,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:09:27,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,942 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-08-30 03:09:27,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:09:27,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:09:27,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:09:27,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:09:27,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,986 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:27,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:09:27,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:09:27,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:09:27,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:09:27,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (1/1) ... [2023-08-30 03:09:28,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:09:28,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:09:28,033 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) [2023-08-30 03:09:28,051 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 [2023-08-30 03:09:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:09:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:09:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:09:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:09:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:09:28,078 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 03:09:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 03:09:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 03:09:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 03:09:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 03:09:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 03:09:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:09:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:09:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:09:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:09:28,084 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:09:28,195 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:09:28,197 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:09:28,437 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:09:28,443 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:09:28,443 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:09:28,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:09:28 BoogieIcfgContainer [2023-08-30 03:09:28,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:09:28,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:09:28,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:09:28,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:09:28,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:09:27" (1/3) ... [2023-08-30 03:09:28,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c20a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:09:28, skipping insertion in model container [2023-08-30 03:09:28,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:09:27" (2/3) ... [2023-08-30 03:09:28,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c20a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:09:28, skipping insertion in model container [2023-08-30 03:09:28,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:09:28" (3/3) ... [2023-08-30 03:09:28,453 INFO L112 eAbstractionObserver]: Analyzing ICFG safe013_tso.i [2023-08-30 03:09:28,469 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:09:28,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 03:09:28,469 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:09:28,521 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:09:28,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2023-08-30 03:09:28,605 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2023-08-30 03:09:28,606 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:09:28,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-30 03:09:28,610 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2023-08-30 03:09:28,614 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 88 transitions, 185 flow [2023-08-30 03:09:28,617 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:09:28,625 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 88 transitions, 185 flow [2023-08-30 03:09:28,627 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 88 transitions, 185 flow [2023-08-30 03:09:28,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 88 transitions, 185 flow [2023-08-30 03:09:28,647 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-08-30 03:09:28,648 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:09:28,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-08-30 03:09:28,650 INFO L119 LiptonReduction]: Number of co-enabled transitions 1512 [2023-08-30 03:09:31,028 INFO L134 LiptonReduction]: Checked pairs total: 3180 [2023-08-30 03:09:31,028 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-08-30 03:09:31,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:09:31,051 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;@15f1b48d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:09:31,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-30 03:09:31,053 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 03:09:31,053 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:09:31,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:09:31,054 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:09:31,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:09:31,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:09:31,059 INFO L85 PathProgramCache]: Analyzing trace with hash 337, now seen corresponding path program 1 times [2023-08-30 03:09:31,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:09:31,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45788624] [2023-08-30 03:09:31,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:09:31,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:09:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:09:31,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:09:31,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:09:31,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45788624] [2023-08-30 03:09:31,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45788624] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:09:31,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:09:31,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:09:31,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020576762] [2023-08-30 03:09:31,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:09:31,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:09:31,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:09:31,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:09:31,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:09:31,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 185 [2023-08-30 03:09:31,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 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) [2023-08-30 03:09:31,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:09:31,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 185 [2023-08-30 03:09:31,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:09:31,292 INFO L130 PetriNetUnfolder]: 272/445 cut-off events. [2023-08-30 03:09:31,292 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:09:31,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 445 events. 272/445 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1890 event pairs, 272 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 897. Up to 433 conditions per place. [2023-08-30 03:09:31,298 INFO L137 encePairwiseOnDemand]: 178/185 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-30 03:09:31,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2023-08-30 03:09:31,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:09:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:09:31,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 201 transitions. [2023-08-30 03:09:31,310 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5432432432432432 [2023-08-30 03:09:31,310 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 201 transitions. [2023-08-30 03:09:31,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 201 transitions. [2023-08-30 03:09:31,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:09:31,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 201 transitions. [2023-08-30 03:09:31,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 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) [2023-08-30 03:09:31,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 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) [2023-08-30 03:09:31,321 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 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) [2023-08-30 03:09:31,323 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 201 transitions. [2023-08-30 03:09:31,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2023-08-30 03:09:31,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 03:09:31,327 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2023-08-30 03:09:31,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-08-30 03:09:31,331 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-08-30 03:09:31,331 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2023-08-30 03:09:31,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 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) [2023-08-30 03:09:31,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:09:31,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:09:31,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:09:31,333 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:09:31,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:09:31,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1868339261, now seen corresponding path program 1 times [2023-08-30 03:09:31,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:09:31,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562685543] [2023-08-30 03:09:31,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:09:31,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:09:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:09:32,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:09:32,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:09:32,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562685543] [2023-08-30 03:09:32,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562685543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:09:32,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:09:32,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:09:32,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847280460] [2023-08-30 03:09:32,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:09:32,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:09:32,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:09:32,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:09:32,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:09:32,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 185 [2023-08-30 03:09:32,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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) [2023-08-30 03:09:32,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:09:32,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 185 [2023-08-30 03:09:32,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:09:32,304 INFO L130 PetriNetUnfolder]: 218/391 cut-off events. [2023-08-30 03:09:32,304 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:09:32,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 771 conditions, 391 events. 218/391 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1728 event pairs, 12 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 768. Up to 222 conditions per place. [2023-08-30 03:09:32,310 INFO L137 encePairwiseOnDemand]: 180/185 looper letters, 24 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2023-08-30 03:09:32,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 31 transitions, 124 flow [2023-08-30 03:09:32,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:09:32,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:09:32,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2023-08-30 03:09:32,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42702702702702705 [2023-08-30 03:09:32,317 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 474 transitions. [2023-08-30 03:09:32,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 474 transitions. [2023-08-30 03:09:32,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:09:32,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 474 transitions. [2023-08-30 03:09:32,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2023-08-30 03:09:32,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 185.0) internal successors, (1295), 7 states have internal predecessors, (1295), 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) [2023-08-30 03:09:32,325 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 185.0) internal successors, (1295), 7 states have internal predecessors, (1295), 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) [2023-08-30 03:09:32,326 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 6 states and 474 transitions. [2023-08-30 03:09:32,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 31 transitions, 124 flow [2023-08-30 03:09:32,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:09:32,327 INFO L231 Difference]: Finished difference. Result has 31 places, 18 transitions, 50 flow [2023-08-30 03:09:32,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=50, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2023-08-30 03:09:32,328 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2023-08-30 03:09:32,328 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 50 flow [2023-08-30 03:09:32,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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) [2023-08-30 03:09:32,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:09:32,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:09:32,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:09:32,329 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:09:32,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:09:32,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1868339222, now seen corresponding path program 1 times [2023-08-30 03:09:32,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:09:32,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994890466] [2023-08-30 03:09:32,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:09:32,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:09:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:09:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:09:32,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:09:32,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994890466] [2023-08-30 03:09:32,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994890466] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:09:32,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:09:32,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:09:32,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020504575] [2023-08-30 03:09:32,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:09:32,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:09:32,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:09:32,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:09:32,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:09:32,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 185 [2023-08-30 03:09:32,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 18 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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) [2023-08-30 03:09:32,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:09:32,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 185 [2023-08-30 03:09:32,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:09:32,688 INFO L130 PetriNetUnfolder]: 581/939 cut-off events. [2023-08-30 03:09:32,688 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2023-08-30 03:09:32,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1986 conditions, 939 events. 581/939 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4621 event pairs, 210 based on Foata normal form. 66/1004 useless extension candidates. Maximal degree in co-relation 1982. Up to 522 conditions per place. [2023-08-30 03:09:32,693 INFO L137 encePairwiseOnDemand]: 178/185 looper letters, 25 selfloop transitions, 5 changer transitions 16/47 dead transitions. [2023-08-30 03:09:32,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 47 transitions, 214 flow [2023-08-30 03:09:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:09:32,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:09:32,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2023-08-30 03:09:32,696 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4897297297297297 [2023-08-30 03:09:32,696 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2023-08-30 03:09:32,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2023-08-30 03:09:32,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:09:32,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2023-08-30 03:09:32,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 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) [2023-08-30 03:09:32,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 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) [2023-08-30 03:09:32,700 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 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) [2023-08-30 03:09:32,701 INFO L175 Difference]: Start difference. First operand has 31 places, 18 transitions, 50 flow. Second operand 5 states and 453 transitions. [2023-08-30 03:09:32,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 47 transitions, 214 flow [2023-08-30 03:09:32,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 47 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 03:09:32,702 INFO L231 Difference]: Finished difference. Result has 34 places, 21 transitions, 83 flow [2023-08-30 03:09:32,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=83, PETRI_PLACES=34, PETRI_TRANSITIONS=21} [2023-08-30 03:09:32,703 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-30 03:09:32,703 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 21 transitions, 83 flow [2023-08-30 03:09:32,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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) [2023-08-30 03:09:32,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:09:32,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:09:32,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:09:32,705 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:09:32,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:09:32,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2083938483, now seen corresponding path program 1 times [2023-08-30 03:09:32,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:09:32,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816298614] [2023-08-30 03:09:32,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:09:32,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:09:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:09:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:09:32,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:09:32,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816298614] [2023-08-30 03:09:32,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816298614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:09:32,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:09:32,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:09:32,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667662613] [2023-08-30 03:09:32,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:09:32,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:09:32,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:09:32,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:09:32,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:09:32,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 185 [2023-08-30 03:09:32,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 21 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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) [2023-08-30 03:09:32,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:09:32,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 185 [2023-08-30 03:09:32,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:09:33,023 INFO L130 PetriNetUnfolder]: 497/821 cut-off events. [2023-08-30 03:09:33,023 INFO L131 PetriNetUnfolder]: For 433/433 co-relation queries the response was YES. [2023-08-30 03:09:33,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2256 conditions, 821 events. 497/821 cut-off events. For 433/433 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3904 event pairs, 99 based on Foata normal form. 48/865 useless extension candidates. Maximal degree in co-relation 2249. Up to 363 conditions per place. [2023-08-30 03:09:33,028 INFO L137 encePairwiseOnDemand]: 178/185 looper letters, 26 selfloop transitions, 6 changer transitions 17/50 dead transitions. [2023-08-30 03:09:33,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 50 transitions, 271 flow [2023-08-30 03:09:33,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:09:33,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:09:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 618 transitions. [2023-08-30 03:09:33,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4772200772200772 [2023-08-30 03:09:33,031 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 618 transitions. [2023-08-30 03:09:33,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 618 transitions. [2023-08-30 03:09:33,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:09:33,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 618 transitions. [2023-08-30 03:09:33,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.28571428571429) internal successors, (618), 7 states have internal predecessors, (618), 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) [2023-08-30 03:09:33,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 185.0) internal successors, (1480), 8 states have internal predecessors, (1480), 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) [2023-08-30 03:09:33,035 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 185.0) internal successors, (1480), 8 states have internal predecessors, (1480), 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) [2023-08-30 03:09:33,036 INFO L175 Difference]: Start difference. First operand has 34 places, 21 transitions, 83 flow. Second operand 7 states and 618 transitions. [2023-08-30 03:09:33,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 50 transitions, 271 flow [2023-08-30 03:09:33,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 50 transitions, 259 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-30 03:09:33,041 INFO L231 Difference]: Finished difference. Result has 41 places, 22 transitions, 108 flow [2023-08-30 03:09:33,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=108, PETRI_PLACES=41, PETRI_TRANSITIONS=22} [2023-08-30 03:09:33,042 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2023-08-30 03:09:33,042 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 22 transitions, 108 flow [2023-08-30 03:09:33,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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) [2023-08-30 03:09:33,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:09:33,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:09:33,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:09:33,043 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:09:33,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:09:33,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2083951937, now seen corresponding path program 1 times [2023-08-30 03:09:33,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:09:33,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105379132] [2023-08-30 03:09:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:09:33,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:09:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:09:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:09:33,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:09:33,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105379132] [2023-08-30 03:09:33,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105379132] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:09:33,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:09:33,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:09:33,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205731136] [2023-08-30 03:09:33,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:09:33,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:09:33,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:09:33,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:09:33,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:09:33,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 185 [2023-08-30 03:09:33,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 22 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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) [2023-08-30 03:09:33,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:09:33,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 185 [2023-08-30 03:09:33,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:09:33,269 INFO L130 PetriNetUnfolder]: 405/711 cut-off events. [2023-08-30 03:09:33,269 INFO L131 PetriNetUnfolder]: For 1298/1302 co-relation queries the response was YES. [2023-08-30 03:09:33,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2107 conditions, 711 events. 405/711 cut-off events. For 1298/1302 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3476 event pairs, 198 based on Foata normal form. 54/753 useless extension candidates. Maximal degree in co-relation 2096. Up to 523 conditions per place. [2023-08-30 03:09:33,275 INFO L137 encePairwiseOnDemand]: 180/185 looper letters, 23 selfloop transitions, 4 changer transitions 11/41 dead transitions. [2023-08-30 03:09:33,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 41 transitions, 254 flow [2023-08-30 03:09:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:09:33,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:09:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 464 transitions. [2023-08-30 03:09:33,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5016216216216216 [2023-08-30 03:09:33,277 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 464 transitions. [2023-08-30 03:09:33,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 464 transitions. [2023-08-30 03:09:33,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:09:33,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 464 transitions. [2023-08-30 03:09:33,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 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) [2023-08-30 03:09:33,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 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) [2023-08-30 03:09:33,281 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 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) [2023-08-30 03:09:33,281 INFO L175 Difference]: Start difference. First operand has 41 places, 22 transitions, 108 flow. Second operand 5 states and 464 transitions. [2023-08-30 03:09:33,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 41 transitions, 254 flow [2023-08-30 03:09:33,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 231 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-30 03:09:33,285 INFO L231 Difference]: Finished difference. Result has 40 places, 23 transitions, 119 flow [2023-08-30 03:09:33,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=119, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2023-08-30 03:09:33,286 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2023-08-30 03:09:33,286 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 119 flow [2023-08-30 03:09:33,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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) [2023-08-30 03:09:33,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:09:33,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:09:33,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:09:33,287 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:09:33,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:09:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash 177594436, now seen corresponding path program 1 times [2023-08-30 03:09:33,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:09:33,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738040428] [2023-08-30 03:09:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:09:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:09:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:09:33,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:09:33,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:09:33,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738040428] [2023-08-30 03:09:33,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738040428] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:09:33,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:09:33,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:09:33,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374686132] [2023-08-30 03:09:33,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:09:33,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:09:33,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:09:33,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:09:33,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:09:33,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 185 [2023-08-30 03:09:33,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 23 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 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) [2023-08-30 03:09:33,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:09:33,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 185 [2023-08-30 03:09:33,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:09:33,546 INFO L130 PetriNetUnfolder]: 456/814 cut-off events. [2023-08-30 03:09:33,546 INFO L131 PetriNetUnfolder]: For 1175/1202 co-relation queries the response was YES. [2023-08-30 03:09:33,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2430 conditions, 814 events. 456/814 cut-off events. For 1175/1202 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4153 event pairs, 149 based on Foata normal form. 63/845 useless extension candidates. Maximal degree in co-relation 2419. Up to 236 conditions per place. [2023-08-30 03:09:33,551 INFO L137 encePairwiseOnDemand]: 180/185 looper letters, 23 selfloop transitions, 4 changer transitions 17/48 dead transitions. [2023-08-30 03:09:33,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 306 flow [2023-08-30 03:09:33,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:09:33,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:09:33,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 543 transitions. [2023-08-30 03:09:33,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4891891891891892 [2023-08-30 03:09:33,553 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 543 transitions. [2023-08-30 03:09:33,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 543 transitions. [2023-08-30 03:09:33,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:09:33,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 543 transitions. [2023-08-30 03:09:33,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.5) internal successors, (543), 6 states have internal predecessors, (543), 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) [2023-08-30 03:09:33,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 185.0) internal successors, (1295), 7 states have internal predecessors, (1295), 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) [2023-08-30 03:09:33,556 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 185.0) internal successors, (1295), 7 states have internal predecessors, (1295), 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) [2023-08-30 03:09:33,556 INFO L175 Difference]: Start difference. First operand has 40 places, 23 transitions, 119 flow. Second operand 6 states and 543 transitions. [2023-08-30 03:09:33,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 306 flow [2023-08-30 03:09:33,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 287 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-30 03:09:33,560 INFO L231 Difference]: Finished difference. Result has 44 places, 23 transitions, 128 flow [2023-08-30 03:09:33,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=128, PETRI_PLACES=44, PETRI_TRANSITIONS=23} [2023-08-30 03:09:33,561 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2023-08-30 03:09:33,561 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 23 transitions, 128 flow [2023-08-30 03:09:33,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 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) [2023-08-30 03:09:33,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:09:33,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:09:33,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:09:33,562 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:09:33,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:09:33,563 INFO L85 PathProgramCache]: Analyzing trace with hash 729751588, now seen corresponding path program 1 times [2023-08-30 03:09:33,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:09:33,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788171804] [2023-08-30 03:09:33,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:09:33,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:09:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:09:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:09:33,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:09:33,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788171804] [2023-08-30 03:09:33,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788171804] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:09:33,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:09:33,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:09:33,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42929380] [2023-08-30 03:09:33,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:09:33,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:09:33,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:09:33,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:09:33,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:09:33,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 185 [2023-08-30 03:09:33,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 23 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-08-30 03:09:33,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:09:33,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 185 [2023-08-30 03:09:33,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:09:33,730 INFO L130 PetriNetUnfolder]: 144/280 cut-off events. [2023-08-30 03:09:33,730 INFO L131 PetriNetUnfolder]: For 491/510 co-relation queries the response was YES. [2023-08-30 03:09:33,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 280 events. 144/280 cut-off events. For 491/510 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1095 event pairs, 54 based on Foata normal form. 12/280 useless extension candidates. Maximal degree in co-relation 911. Up to 220 conditions per place. [2023-08-30 03:09:33,733 INFO L137 encePairwiseOnDemand]: 180/185 looper letters, 27 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-08-30 03:09:33,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 247 flow [2023-08-30 03:09:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:09:33,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:09:33,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2023-08-30 03:09:33,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5063063063063064 [2023-08-30 03:09:33,734 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2023-08-30 03:09:33,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2023-08-30 03:09:33,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:09:33,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2023-08-30 03:09:33,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2023-08-30 03:09:33,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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) [2023-08-30 03:09:33,737 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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) [2023-08-30 03:09:33,737 INFO L175 Difference]: Start difference. First operand has 44 places, 23 transitions, 128 flow. Second operand 3 states and 281 transitions. [2023-08-30 03:09:33,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 247 flow [2023-08-30 03:09:33,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 36 transitions, 225 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-30 03:09:33,757 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 136 flow [2023-08-30 03:09:33,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2023-08-30 03:09:33,758 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2023-08-30 03:09:33,759 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 136 flow [2023-08-30 03:09:33,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-08-30 03:09:33,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:09:33,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:09:33,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:09:33,760 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:09:33,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:09:33,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1440786688, now seen corresponding path program 1 times [2023-08-30 03:09:33,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:09:33,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379008770] [2023-08-30 03:09:33,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:09:33,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:09:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:09:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:09:33,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:09:33,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379008770] [2023-08-30 03:09:33,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379008770] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:09:33,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:09:33,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:09:33,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776385] [2023-08-30 03:09:33,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:09:33,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:09:33,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:09:33,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:09:33,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:09:33,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 185 [2023-08-30 03:09:33,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 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) [2023-08-30 03:09:33,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:09:33,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 185 [2023-08-30 03:09:33,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:09:34,007 INFO L130 PetriNetUnfolder]: 80/175 cut-off events. [2023-08-30 03:09:34,009 INFO L131 PetriNetUnfolder]: For 181/202 co-relation queries the response was YES. [2023-08-30 03:09:34,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 620 conditions, 175 events. 80/175 cut-off events. For 181/202 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 584 event pairs, 18 based on Foata normal form. 22/189 useless extension candidates. Maximal degree in co-relation 610. Up to 83 conditions per place. [2023-08-30 03:09:34,010 INFO L137 encePairwiseOnDemand]: 180/185 looper letters, 31 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2023-08-30 03:09:34,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 291 flow [2023-08-30 03:09:34,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:09:34,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:09:34,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 373 transitions. [2023-08-30 03:09:34,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.504054054054054 [2023-08-30 03:09:34,012 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 373 transitions. [2023-08-30 03:09:34,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 373 transitions. [2023-08-30 03:09:34,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:09:34,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 373 transitions. [2023-08-30 03:09:34,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2023-08-30 03:09:34,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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) [2023-08-30 03:09:34,015 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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) [2023-08-30 03:09:34,015 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 136 flow. Second operand 4 states and 373 transitions. [2023-08-30 03:09:34,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 291 flow [2023-08-30 03:09:34,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 287 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:09:34,018 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 172 flow [2023-08-30 03:09:34,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2023-08-30 03:09:34,021 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2023-08-30 03:09:34,021 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 172 flow [2023-08-30 03:09:34,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 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) [2023-08-30 03:09:34,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:09:34,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:09:34,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:09:34,022 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:09:34,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:09:34,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1840180482, now seen corresponding path program 1 times [2023-08-30 03:09:34,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:09:34,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101061297] [2023-08-30 03:09:34,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:09:34,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:09:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:09:34,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:09:34,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:09:34,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101061297] [2023-08-30 03:09:34,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101061297] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:09:34,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:09:34,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:09:34,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885369104] [2023-08-30 03:09:34,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:09:34,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:09:34,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:09:34,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:09:34,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:09:34,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 185 [2023-08-30 03:09:34,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 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) [2023-08-30 03:09:34,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:09:34,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 185 [2023-08-30 03:09:34,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:09:34,280 INFO L130 PetriNetUnfolder]: 120/263 cut-off events. [2023-08-30 03:09:34,280 INFO L131 PetriNetUnfolder]: For 498/498 co-relation queries the response was YES. [2023-08-30 03:09:34,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1066 conditions, 263 events. 120/263 cut-off events. For 498/498 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 998 event pairs, 11 based on Foata normal form. 7/270 useless extension candidates. Maximal degree in co-relation 1055. Up to 128 conditions per place. [2023-08-30 03:09:34,282 INFO L137 encePairwiseOnDemand]: 177/185 looper letters, 35 selfloop transitions, 11 changer transitions 9/56 dead transitions. [2023-08-30 03:09:34,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 434 flow [2023-08-30 03:09:34,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:09:34,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:09:34,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 518 transitions. [2023-08-30 03:09:34,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2023-08-30 03:09:34,284 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 518 transitions. [2023-08-30 03:09:34,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 518 transitions. [2023-08-30 03:09:34,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:09:34,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 518 transitions. [2023-08-30 03:09:34,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.33333333333333) internal successors, (518), 6 states have internal predecessors, (518), 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) [2023-08-30 03:09:34,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 185.0) internal successors, (1295), 7 states have internal predecessors, (1295), 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) [2023-08-30 03:09:34,287 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 185.0) internal successors, (1295), 7 states have internal predecessors, (1295), 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) [2023-08-30 03:09:34,287 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 172 flow. Second operand 6 states and 518 transitions. [2023-08-30 03:09:34,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 434 flow [2023-08-30 03:09:34,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 56 transitions, 407 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-30 03:09:34,290 INFO L231 Difference]: Finished difference. Result has 48 places, 30 transitions, 210 flow [2023-08-30 03:09:34,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=210, PETRI_PLACES=48, PETRI_TRANSITIONS=30} [2023-08-30 03:09:34,291 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2023-08-30 03:09:34,291 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 30 transitions, 210 flow [2023-08-30 03:09:34,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 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) [2023-08-30 03:09:34,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:09:34,291 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:09:34,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:09:34,292 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:09:34,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:09:34,292 INFO L85 PathProgramCache]: Analyzing trace with hash 86467854, now seen corresponding path program 2 times [2023-08-30 03:09:34,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:09:34,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36644088] [2023-08-30 03:09:34,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:09:34,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:09:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:09:34,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:09:34,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:09:34,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36644088] [2023-08-30 03:09:34,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36644088] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:09:34,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:09:34,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:09:34,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621268824] [2023-08-30 03:09:34,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:09:34,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:09:34,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:09:34,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:09:34,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:09:34,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 185 [2023-08-30 03:09:34,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 30 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 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) [2023-08-30 03:09:34,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:09:34,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 185 [2023-08-30 03:09:34,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:09:34,475 INFO L130 PetriNetUnfolder]: 66/157 cut-off events. [2023-08-30 03:09:34,475 INFO L131 PetriNetUnfolder]: For 411/446 co-relation queries the response was YES. [2023-08-30 03:09:34,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 157 events. 66/157 cut-off events. For 411/446 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 601 event pairs, 10 based on Foata normal form. 28/177 useless extension candidates. Maximal degree in co-relation 619. Up to 59 conditions per place. [2023-08-30 03:09:34,476 INFO L137 encePairwiseOnDemand]: 180/185 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2023-08-30 03:09:34,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 43 transitions, 378 flow [2023-08-30 03:09:34,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:09:34,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:09:34,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2023-08-30 03:09:34,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4918918918918919 [2023-08-30 03:09:34,478 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 455 transitions. [2023-08-30 03:09:34,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 455 transitions. [2023-08-30 03:09:34,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:09:34,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 455 transitions. [2023-08-30 03:09:34,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:09:34,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 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) [2023-08-30 03:09:34,481 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 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) [2023-08-30 03:09:34,481 INFO L175 Difference]: Start difference. First operand has 48 places, 30 transitions, 210 flow. Second operand 5 states and 455 transitions. [2023-08-30 03:09:34,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 43 transitions, 378 flow [2023-08-30 03:09:34,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 43 transitions, 351 flow, removed 9 selfloop flow, removed 3 redundant places. [2023-08-30 03:09:34,483 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-08-30 03:09:34,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-08-30 03:09:34,484 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2023-08-30 03:09:34,484 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-08-30 03:09:34,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 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) [2023-08-30 03:09:34,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-30 03:09:34,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-30 03:09:34,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-30 03:09:34,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-30 03:09:34,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-30 03:09:34,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-30 03:09:34,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-30 03:09:34,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-30 03:09:34,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-30 03:09:34,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-30 03:09:34,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-30 03:09:34,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 03:09:34,489 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:09:34,491 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:09:34,491 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:09:34,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:09:34 BasicIcfg [2023-08-30 03:09:34,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:09:34,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:09:34,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:09:34,495 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:09:34,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:09:28" (3/4) ... [2023-08-30 03:09:34,497 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:09:34,502 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:09:34,502 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:09:34,502 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 03:09:34,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 03:09:34,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:09:34,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:09:34,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:09:34,531 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:09:34,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:09:34,531 INFO L158 Benchmark]: Toolchain (without parser) took 7229.67ms. Allocated memory was 69.2MB in the beginning and 142.6MB in the end (delta: 73.4MB). Free memory was 45.5MB in the beginning and 96.1MB in the end (delta: -50.6MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-08-30 03:09:34,532 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:09:34,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.34ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 45.3MB in the beginning and 69.1MB in the end (delta: -23.8MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2023-08-30 03:09:34,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.65ms. Allocated memory is still 96.5MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:09:34,532 INFO L158 Benchmark]: Boogie Preprocessor took 50.41ms. Allocated memory is still 96.5MB. Free memory was 67.0MB in the beginning and 65.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:09:34,532 INFO L158 Benchmark]: RCFGBuilder took 450.95ms. Allocated memory is still 96.5MB. Free memory was 65.6MB in the beginning and 50.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:09:34,533 INFO L158 Benchmark]: TraceAbstraction took 6046.59ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 50.3MB in the beginning and 99.3MB in the end (delta: -49.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:09:34,533 INFO L158 Benchmark]: Witness Printer took 36.55ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 96.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:09:34,534 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.34ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 45.3MB in the beginning and 69.1MB in the end (delta: -23.8MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.65ms. Allocated memory is still 96.5MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.41ms. Allocated memory is still 96.5MB. Free memory was 67.0MB in the beginning and 65.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 450.95ms. Allocated memory is still 96.5MB. Free memory was 65.6MB in the beginning and 50.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6046.59ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 50.3MB in the beginning and 99.3MB in the end (delta: -49.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.55ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 96.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 96 PlacesBefore, 35 PlacesAfterwards, 88 TransitionsBefore, 26 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 90 TotalNumberOfCompositions, 3180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2119, independent: 2034, independent conditional: 0, independent unconditional: 2034, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 852, independent: 834, independent conditional: 0, independent unconditional: 834, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2119, independent: 1200, independent conditional: 0, independent unconditional: 1200, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 852, unknown conditional: 0, unknown unconditional: 852] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, 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: -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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 778]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 118 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: 5.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 353 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 267 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 781 IncrementalHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 34 mSDtfsCounter, 781 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred in iteration=9, InterpolantAutomatonStates: 49, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:09:34,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE