./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe032_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/safe032_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 ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --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 03:20:06,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:20:06,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:20:06,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:20:06,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:20:06,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:20:06,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:20:06,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:20:06,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:20:06,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:20:06,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:20:06,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:20:06,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:20:06,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:20:06,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:20:06,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:20:06,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:20:06,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:20:06,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:20:06,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:20:06,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:20:06,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:20:06,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:20:06,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:20:06,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:20:06,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:20:06,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:20:06,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:20:06,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:20:06,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:20:06,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:20:06,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:20:06,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:20:06,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:20:06,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:20:06,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:20:06,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:20:06,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:20:06,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:20:06,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:20:06,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:20:06,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:20:06,958 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:20:06,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:20:06,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:20:06,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:20:06,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:20:06,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:20:06,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:20:06,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:20:06,960 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:20:06,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:20:06,961 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:20:06,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:20:06,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:20:06,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:20:06,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:20:06,962 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:20:06,962 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:20:06,962 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:20:06,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:20:06,962 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:20:06,963 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:20:06,963 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:20:06,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:20:06,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:20:06,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:20:06,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:20:06,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:20:06,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:20:06,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:20:06,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:20:06,964 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:20:06,964 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:20:06,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:20:06,965 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:20:06,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:20:07,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:20:07,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:20:07,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:20:07,233 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:20:07,233 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:20:07,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2023-08-30 03:20:08,391 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:20:08,610 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:20:08,613 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2023-08-30 03:20:08,627 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb7918ec4/62c306bab26e4b89bd5b6b06a64fb007/FLAG4e7c14a3e [2023-08-30 03:20:08,639 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb7918ec4/62c306bab26e4b89bd5b6b06a64fb007 [2023-08-30 03:20:08,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:20:08,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:20:08,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:20:08,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:20:08,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:20:08,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:20:08" (1/1) ... [2023-08-30 03:20:08,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324eed75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:08, skipping insertion in model container [2023-08-30 03:20:08,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:20:08" (1/1) ... [2023-08-30 03:20:08,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:20:08,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:20:08,856 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/safe032_tso.i[945,958] [2023-08-30 03:20:09,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:20:09,037 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:20:09,050 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/safe032_tso.i[945,958] [2023-08-30 03:20:09,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:20:09,125 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:20:09,125 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:20:09,131 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:20:09,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09 WrapperNode [2023-08-30 03:20:09,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:20:09,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:20:09,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:20:09,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:20:09,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (1/1) ... [2023-08-30 03:20:09,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (1/1) ... [2023-08-30 03:20:09,189 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-08-30 03:20:09,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:20:09,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:20:09,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:20:09,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:20:09,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (1/1) ... [2023-08-30 03:20:09,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (1/1) ... [2023-08-30 03:20:09,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (1/1) ... [2023-08-30 03:20:09,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (1/1) ... [2023-08-30 03:20:09,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (1/1) ... [2023-08-30 03:20:09,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (1/1) ... [2023-08-30 03:20:09,231 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (1/1) ... [2023-08-30 03:20:09,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (1/1) ... [2023-08-30 03:20:09,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:20:09,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:20:09,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:20:09,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:20:09,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (1/1) ... [2023-08-30 03:20:09,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:20:09,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:20:09,277 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 03:20:09,298 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 03:20:09,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:20:09,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:20:09,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:20:09,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:20:09,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:20:09,318 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 03:20:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 03:20:09,319 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 03:20:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 03:20:09,319 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 03:20:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 03:20:09,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:20:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:20:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:20:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:20:09,324 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 03:20:09,424 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:20:09,425 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:20:09,611 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:20:09,615 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:20:09,616 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:20:09,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:20:09 BoogieIcfgContainer [2023-08-30 03:20:09,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:20:09,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:20:09,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:20:09,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:20:09,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:20:08" (1/3) ... [2023-08-30 03:20:09,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a1a847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:20:09, skipping insertion in model container [2023-08-30 03:20:09,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:09" (2/3) ... [2023-08-30 03:20:09,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a1a847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:20:09, skipping insertion in model container [2023-08-30 03:20:09,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:20:09" (3/3) ... [2023-08-30 03:20:09,622 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2023-08-30 03:20:09,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:20:09,642 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 03:20:09,642 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:20:09,716 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:20:09,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 203 flow [2023-08-30 03:20:09,788 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2023-08-30 03:20:09,789 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:09,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-30 03:20:09,793 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 94 transitions, 203 flow [2023-08-30 03:20:09,797 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 87 transitions, 183 flow [2023-08-30 03:20:09,800 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:20:09,840 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 87 transitions, 183 flow [2023-08-30 03:20:09,842 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 87 transitions, 183 flow [2023-08-30 03:20:09,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 87 transitions, 183 flow [2023-08-30 03:20:09,858 INFO L130 PetriNetUnfolder]: 2/87 cut-off events. [2023-08-30 03:20:09,860 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:09,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-08-30 03:20:09,862 INFO L119 LiptonReduction]: Number of co-enabled transitions 1512 [2023-08-30 03:20:11,474 INFO L134 LiptonReduction]: Checked pairs total: 2934 [2023-08-30 03:20:11,474 INFO L136 LiptonReduction]: Total number of compositions: 87 [2023-08-30 03:20:11,491 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:20:11,498 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;@4530e2cb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:20:11,498 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-30 03:20:11,499 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:20:11,499 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:11,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:11,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:20:11,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:11,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:11,504 INFO L85 PathProgramCache]: Analyzing trace with hash 332, now seen corresponding path program 1 times [2023-08-30 03:20:11,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:11,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260336959] [2023-08-30 03:20:11,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:11,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:11,577 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 03:20:11,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:11,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260336959] [2023-08-30 03:20:11,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260336959] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:11,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:11,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:20:11,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653425150] [2023-08-30 03:20:11,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:11,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:20:11,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:20:11,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:20:11,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 181 [2023-08-30 03:20:11,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 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 03:20:11,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:11,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 181 [2023-08-30 03:20:11,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:11,685 INFO L130 PetriNetUnfolder]: 272/454 cut-off events. [2023-08-30 03:20:11,685 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:11,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 454 events. 272/454 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1976 event pairs, 272 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 906. Up to 433 conditions per place. [2023-08-30 03:20:11,689 INFO L137 encePairwiseOnDemand]: 174/181 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-30 03:20:11,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2023-08-30 03:20:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:20:11,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:20:11,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 199 transitions. [2023-08-30 03:20:11,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5497237569060773 [2023-08-30 03:20:11,697 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 199 transitions. [2023-08-30 03:20:11,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 199 transitions. [2023-08-30 03:20:11,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:11,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 199 transitions. [2023-08-30 03:20:11,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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 03:20:11,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 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 03:20:11,704 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 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 03:20:11,705 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 199 transitions. [2023-08-30 03:20:11,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2023-08-30 03:20:11,707 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 03:20:11,708 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2023-08-30 03:20:11,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, 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 03:20:11,711 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-08-30 03:20:11,711 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2023-08-30 03:20:11,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 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 03:20:11,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:11,712 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:11,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:20:11,712 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 03:20:11,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:11,713 INFO L85 PathProgramCache]: Analyzing trace with hash 547735247, now seen corresponding path program 1 times [2023-08-30 03:20:11,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:11,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220899201] [2023-08-30 03:20:11,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:11,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:12,233 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 03:20:12,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:12,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220899201] [2023-08-30 03:20:12,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220899201] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:12,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:12,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:12,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146136251] [2023-08-30 03:20:12,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:12,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:20:12,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:12,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:20:12,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:20:12,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 181 [2023-08-30 03:20:12,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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 03:20:12,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:12,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 181 [2023-08-30 03:20:12,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:12,463 INFO L130 PetriNetUnfolder]: 457/753 cut-off events. [2023-08-30 03:20:12,463 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:12,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1528 conditions, 753 events. 457/753 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3599 event pairs, 134 based on Foata normal form. 0/729 useless extension candidates. Maximal degree in co-relation 1525. Up to 267 conditions per place. [2023-08-30 03:20:12,467 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 36 selfloop transitions, 5 changer transitions 0/43 dead transitions. [2023-08-30 03:20:12,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 43 transitions, 178 flow [2023-08-30 03:20:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:20:12,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:20:12,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 481 transitions. [2023-08-30 03:20:12,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4429097605893186 [2023-08-30 03:20:12,470 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 481 transitions. [2023-08-30 03:20:12,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 481 transitions. [2023-08-30 03:20:12,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:12,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 481 transitions. [2023-08-30 03:20:12,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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 03:20:12,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 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 03:20:12,480 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 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 03:20:12,480 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 6 states and 481 transitions. [2023-08-30 03:20:12,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 43 transitions, 178 flow [2023-08-30 03:20:12,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 43 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:20:12,481 INFO L231 Difference]: Finished difference. Result has 35 places, 21 transitions, 70 flow [2023-08-30 03:20:12,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=70, PETRI_PLACES=35, PETRI_TRANSITIONS=21} [2023-08-30 03:20:12,482 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-30 03:20:12,482 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 21 transitions, 70 flow [2023-08-30 03:20:12,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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 03:20:12,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:12,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:12,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:20:12,483 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 03:20:12,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:12,484 INFO L85 PathProgramCache]: Analyzing trace with hash 547735207, now seen corresponding path program 1 times [2023-08-30 03:20:12,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:12,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58447050] [2023-08-30 03:20:12,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:12,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:12,595 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 03:20:12,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:12,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58447050] [2023-08-30 03:20:12,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58447050] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:12,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:12,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:20:12,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926507909] [2023-08-30 03:20:12,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:12,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:20:12,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:12,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:20:12,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:20:12,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181 [2023-08-30 03:20:12,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 21 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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 03:20:12,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:12,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181 [2023-08-30 03:20:12,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:12,769 INFO L130 PetriNetUnfolder]: 1350/2088 cut-off events. [2023-08-30 03:20:12,769 INFO L131 PetriNetUnfolder]: For 527/527 co-relation queries the response was YES. [2023-08-30 03:20:12,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4690 conditions, 2088 events. 1350/2088 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 10270 event pairs, 484 based on Foata normal form. 131/2219 useless extension candidates. Maximal degree in co-relation 4683. Up to 1092 conditions per place. [2023-08-30 03:20:12,776 INFO L137 encePairwiseOnDemand]: 171/181 looper letters, 41 selfloop transitions, 15 changer transitions 4/60 dead transitions. [2023-08-30 03:20:12,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 60 transitions, 308 flow [2023-08-30 03:20:12,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:12,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:12,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 443 transitions. [2023-08-30 03:20:12,778 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4895027624309392 [2023-08-30 03:20:12,778 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 443 transitions. [2023-08-30 03:20:12,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 443 transitions. [2023-08-30 03:20:12,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:12,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 443 transitions. [2023-08-30 03:20:12,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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 03:20:12,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 03:20:12,781 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 03:20:12,781 INFO L175 Difference]: Start difference. First operand has 35 places, 21 transitions, 70 flow. Second operand 5 states and 443 transitions. [2023-08-30 03:20:12,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 60 transitions, 308 flow [2023-08-30 03:20:12,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 60 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:20:12,783 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 204 flow [2023-08-30 03:20:12,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=204, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2023-08-30 03:20:12,784 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2023-08-30 03:20:12,784 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 204 flow [2023-08-30 03:20:12,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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 03:20:12,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:12,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:12,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:20:12,785 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 03:20:12,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:12,785 INFO L85 PathProgramCache]: Analyzing trace with hash -200097405, now seen corresponding path program 1 times [2023-08-30 03:20:12,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:12,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797038377] [2023-08-30 03:20:12,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:12,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:12,897 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 03:20:12,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:12,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797038377] [2023-08-30 03:20:12,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797038377] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:12,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:12,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:20:12,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716323925] [2023-08-30 03:20:12,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:12,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:12,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:12,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:12,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:12,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181 [2023-08-30 03:20:12,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 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 03:20:12,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:12,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181 [2023-08-30 03:20:12,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:13,118 INFO L130 PetriNetUnfolder]: 1389/2178 cut-off events. [2023-08-30 03:20:13,119 INFO L131 PetriNetUnfolder]: For 3219/3219 co-relation queries the response was YES. [2023-08-30 03:20:13,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7559 conditions, 2178 events. 1389/2178 cut-off events. For 3219/3219 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 10948 event pairs, 196 based on Foata normal form. 59/2237 useless extension candidates. Maximal degree in co-relation 7549. Up to 1046 conditions per place. [2023-08-30 03:20:13,127 INFO L137 encePairwiseOnDemand]: 171/181 looper letters, 45 selfloop transitions, 19 changer transitions 18/82 dead transitions. [2023-08-30 03:20:13,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 82 transitions, 602 flow [2023-08-30 03:20:13,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:20:13,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:20:13,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 610 transitions. [2023-08-30 03:20:13,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48145224940805054 [2023-08-30 03:20:13,130 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 610 transitions. [2023-08-30 03:20:13,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 610 transitions. [2023-08-30 03:20:13,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:13,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 610 transitions. [2023-08-30 03:20:13,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 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 03:20:13,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 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 03:20:13,133 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 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 03:20:13,133 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 204 flow. Second operand 7 states and 610 transitions. [2023-08-30 03:20:13,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 82 transitions, 602 flow [2023-08-30 03:20:13,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 82 transitions, 602 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:20:13,138 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 338 flow [2023-08-30 03:20:13,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=338, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2023-08-30 03:20:13,139 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 18 predicate places. [2023-08-30 03:20:13,139 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 338 flow [2023-08-30 03:20:13,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 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 03:20:13,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:13,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:13,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:20:13,140 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 03:20:13,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:13,141 INFO L85 PathProgramCache]: Analyzing trace with hash -200099327, now seen corresponding path program 1 times [2023-08-30 03:20:13,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:13,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887633130] [2023-08-30 03:20:13,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:13,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:13,212 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 03:20:13,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:13,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887633130] [2023-08-30 03:20:13,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887633130] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:13,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:13,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:20:13,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050899252] [2023-08-30 03:20:13,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:13,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:20:13,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:13,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:20:13,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:20:13,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 181 [2023-08-30 03:20:13,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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 03:20:13,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:13,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 181 [2023-08-30 03:20:13,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:13,429 INFO L130 PetriNetUnfolder]: 1266/2095 cut-off events. [2023-08-30 03:20:13,429 INFO L131 PetriNetUnfolder]: For 8141/8203 co-relation queries the response was YES. [2023-08-30 03:20:13,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8709 conditions, 2095 events. 1266/2095 cut-off events. For 8141/8203 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 11503 event pairs, 437 based on Foata normal form. 111/2180 useless extension candidates. Maximal degree in co-relation 8693. Up to 1251 conditions per place. [2023-08-30 03:20:13,441 INFO L137 encePairwiseOnDemand]: 175/181 looper letters, 55 selfloop transitions, 15 changer transitions 5/83 dead transitions. [2023-08-30 03:20:13,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 83 transitions, 824 flow [2023-08-30 03:20:13,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:13,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:13,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 464 transitions. [2023-08-30 03:20:13,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.512707182320442 [2023-08-30 03:20:13,443 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 464 transitions. [2023-08-30 03:20:13,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 464 transitions. [2023-08-30 03:20:13,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:13,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 464 transitions. [2023-08-30 03:20:13,444 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 03:20:13,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 03:20:13,446 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 03:20:13,446 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 338 flow. Second operand 5 states and 464 transitions. [2023-08-30 03:20:13,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 83 transitions, 824 flow [2023-08-30 03:20:13,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 83 transitions, 775 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-30 03:20:13,458 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 510 flow [2023-08-30 03:20:13,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=510, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2023-08-30 03:20:13,459 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2023-08-30 03:20:13,459 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 510 flow [2023-08-30 03:20:13,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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 03:20:13,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:13,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:13,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:20:13,460 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 03:20:13,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:13,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1908073819, now seen corresponding path program 1 times [2023-08-30 03:20:13,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:13,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917986743] [2023-08-30 03:20:13,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:13,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:13,540 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 03:20:13,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:13,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917986743] [2023-08-30 03:20:13,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917986743] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:13,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:13,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:20:13,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663484915] [2023-08-30 03:20:13,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:13,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:20:13,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:13,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:20:13,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:20:13,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 181 [2023-08-30 03:20:13,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 510 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 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 03:20:13,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:13,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 181 [2023-08-30 03:20:13,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:13,786 INFO L130 PetriNetUnfolder]: 1227/2160 cut-off events. [2023-08-30 03:20:13,787 INFO L131 PetriNetUnfolder]: For 10676/10703 co-relation queries the response was YES. [2023-08-30 03:20:13,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9298 conditions, 2160 events. 1227/2160 cut-off events. For 10676/10703 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 13065 event pairs, 387 based on Foata normal form. 73/2226 useless extension candidates. Maximal degree in co-relation 9279. Up to 966 conditions per place. [2023-08-30 03:20:13,800 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 51 selfloop transitions, 12 changer transitions 15/89 dead transitions. [2023-08-30 03:20:13,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 89 transitions, 970 flow [2023-08-30 03:20:13,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:13,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:13,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 463 transitions. [2023-08-30 03:20:13,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5116022099447514 [2023-08-30 03:20:13,802 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 463 transitions. [2023-08-30 03:20:13,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 463 transitions. [2023-08-30 03:20:13,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:13,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 463 transitions. [2023-08-30 03:20:13,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 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 03:20:13,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 03:20:13,804 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 03:20:13,804 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 510 flow. Second operand 5 states and 463 transitions. [2023-08-30 03:20:13,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 89 transitions, 970 flow [2023-08-30 03:20:13,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 89 transitions, 962 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-30 03:20:13,818 INFO L231 Difference]: Finished difference. Result has 64 places, 54 transitions, 565 flow [2023-08-30 03:20:13,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=565, PETRI_PLACES=64, PETRI_TRANSITIONS=54} [2023-08-30 03:20:13,818 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 29 predicate places. [2023-08-30 03:20:13,818 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 54 transitions, 565 flow [2023-08-30 03:20:13,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 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 03:20:13,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:13,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:13,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:20:13,819 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:13,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:13,820 INFO L85 PathProgramCache]: Analyzing trace with hash 193381878, now seen corresponding path program 1 times [2023-08-30 03:20:13,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:13,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437510392] [2023-08-30 03:20:13,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:13,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:13,975 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 03:20:13,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:13,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437510392] [2023-08-30 03:20:13,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437510392] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:13,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:13,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:20:13,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573479783] [2023-08-30 03:20:13,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:13,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:13,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:13,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:13,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:14,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 181 [2023-08-30 03:20:14,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 54 transitions, 565 flow. Second operand has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 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 03:20:14,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:14,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 181 [2023-08-30 03:20:14,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:14,178 INFO L130 PetriNetUnfolder]: 788/1444 cut-off events. [2023-08-30 03:20:14,178 INFO L131 PetriNetUnfolder]: For 10523/10547 co-relation queries the response was YES. [2023-08-30 03:20:14,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6240 conditions, 1444 events. 788/1444 cut-off events. For 10523/10547 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 8483 event pairs, 299 based on Foata normal form. 138/1568 useless extension candidates. Maximal degree in co-relation 6217. Up to 1091 conditions per place. [2023-08-30 03:20:14,186 INFO L137 encePairwiseOnDemand]: 177/181 looper letters, 32 selfloop transitions, 4 changer transitions 7/56 dead transitions. [2023-08-30 03:20:14,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 56 transitions, 603 flow [2023-08-30 03:20:14,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:14,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:14,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 387 transitions. [2023-08-30 03:20:14,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4276243093922652 [2023-08-30 03:20:14,188 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 387 transitions. [2023-08-30 03:20:14,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 387 transitions. [2023-08-30 03:20:14,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:14,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 387 transitions. [2023-08-30 03:20:14,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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 03:20:14,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 03:20:14,191 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 03:20:14,191 INFO L175 Difference]: Start difference. First operand has 64 places, 54 transitions, 565 flow. Second operand 5 states and 387 transitions. [2023-08-30 03:20:14,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 56 transitions, 603 flow [2023-08-30 03:20:14,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 56 transitions, 567 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-08-30 03:20:14,210 INFO L231 Difference]: Finished difference. Result has 59 places, 41 transitions, 358 flow [2023-08-30 03:20:14,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=358, PETRI_PLACES=59, PETRI_TRANSITIONS=41} [2023-08-30 03:20:14,211 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 24 predicate places. [2023-08-30 03:20:14,211 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 41 transitions, 358 flow [2023-08-30 03:20:14,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 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 03:20:14,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:14,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:14,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:20:14,211 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 03:20:14,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:14,212 INFO L85 PathProgramCache]: Analyzing trace with hash 213016732, now seen corresponding path program 1 times [2023-08-30 03:20:14,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:14,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206557715] [2023-08-30 03:20:14,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:14,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:14,330 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 03:20:14,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:14,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206557715] [2023-08-30 03:20:14,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206557715] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:14,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:14,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:14,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786441863] [2023-08-30 03:20:14,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:14,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:14,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:14,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:14,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:14,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181 [2023-08-30 03:20:14,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 41 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 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 03:20:14,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:14,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181 [2023-08-30 03:20:14,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:14,514 INFO L130 PetriNetUnfolder]: 1105/1817 cut-off events. [2023-08-30 03:20:14,514 INFO L131 PetriNetUnfolder]: For 8167/8167 co-relation queries the response was YES. [2023-08-30 03:20:14,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7791 conditions, 1817 events. 1105/1817 cut-off events. For 8167/8167 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 9459 event pairs, 167 based on Foata normal form. 78/1895 useless extension candidates. Maximal degree in co-relation 7773. Up to 589 conditions per place. [2023-08-30 03:20:14,526 INFO L137 encePairwiseOnDemand]: 172/181 looper letters, 38 selfloop transitions, 13 changer transitions 36/87 dead transitions. [2023-08-30 03:20:14,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 87 transitions, 850 flow [2023-08-30 03:20:14,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:20:14,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:20:14,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 604 transitions. [2023-08-30 03:20:14,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47671665351223363 [2023-08-30 03:20:14,528 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 604 transitions. [2023-08-30 03:20:14,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 604 transitions. [2023-08-30 03:20:14,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:14,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 604 transitions. [2023-08-30 03:20:14,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.28571428571429) internal successors, (604), 7 states have internal predecessors, (604), 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 03:20:14,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 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 03:20:14,531 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 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 03:20:14,531 INFO L175 Difference]: Start difference. First operand has 59 places, 41 transitions, 358 flow. Second operand 7 states and 604 transitions. [2023-08-30 03:20:14,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 87 transitions, 850 flow [2023-08-30 03:20:14,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 87 transitions, 830 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-30 03:20:14,545 INFO L231 Difference]: Finished difference. Result has 65 places, 35 transitions, 367 flow [2023-08-30 03:20:14,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=367, PETRI_PLACES=65, PETRI_TRANSITIONS=35} [2023-08-30 03:20:14,545 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 30 predicate places. [2023-08-30 03:20:14,545 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 35 transitions, 367 flow [2023-08-30 03:20:14,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 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 03:20:14,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:14,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:14,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:20:14,546 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 03:20:14,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:14,547 INFO L85 PathProgramCache]: Analyzing trace with hash 276122630, now seen corresponding path program 1 times [2023-08-30 03:20:14,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:14,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268987100] [2023-08-30 03:20:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:14,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:14,618 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 03:20:14,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:14,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268987100] [2023-08-30 03:20:14,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268987100] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:14,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:14,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:20:14,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154528337] [2023-08-30 03:20:14,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:14,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:20:14,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:14,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:20:14,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:20:14,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 181 [2023-08-30 03:20:14,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 35 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 03:20:14,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:14,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 181 [2023-08-30 03:20:14,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:14,684 INFO L130 PetriNetUnfolder]: 260/534 cut-off events. [2023-08-30 03:20:14,685 INFO L131 PetriNetUnfolder]: For 3741/3768 co-relation queries the response was YES. [2023-08-30 03:20:14,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 534 events. 260/534 cut-off events. For 3741/3768 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2695 event pairs, 73 based on Foata normal form. 41/564 useless extension candidates. Maximal degree in co-relation 2452. Up to 381 conditions per place. [2023-08-30 03:20:14,688 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 33 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2023-08-30 03:20:14,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 50 transitions, 560 flow [2023-08-30 03:20:14,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:20:14,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:20:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2023-08-30 03:20:14,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5119705340699816 [2023-08-30 03:20:14,689 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2023-08-30 03:20:14,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2023-08-30 03:20:14,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:14,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2023-08-30 03:20:14,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 03:20:14,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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 03:20:14,691 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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 03:20:14,691 INFO L175 Difference]: Start difference. First operand has 65 places, 35 transitions, 367 flow. Second operand 3 states and 278 transitions. [2023-08-30 03:20:14,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 50 transitions, 560 flow [2023-08-30 03:20:14,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 50 transitions, 492 flow, removed 10 selfloop flow, removed 8 redundant places. [2023-08-30 03:20:14,696 INFO L231 Difference]: Finished difference. Result has 54 places, 38 transitions, 338 flow [2023-08-30 03:20:14,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=54, PETRI_TRANSITIONS=38} [2023-08-30 03:20:14,696 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 19 predicate places. [2023-08-30 03:20:14,696 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 38 transitions, 338 flow [2023-08-30 03:20:14,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 03:20:14,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:14,697 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:14,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:20:14,697 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 03:20:14,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:14,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1733245947, now seen corresponding path program 1 times [2023-08-30 03:20:14,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:14,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745427591] [2023-08-30 03:20:14,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:14,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:14,771 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 03:20:14,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745427591] [2023-08-30 03:20:14,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745427591] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:14,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:14,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:20:14,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422180814] [2023-08-30 03:20:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:14,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:20:14,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:14,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:20:14,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:20:14,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 181 [2023-08-30 03:20:14,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 38 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 03:20:14,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:14,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 181 [2023-08-30 03:20:14,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:14,828 INFO L130 PetriNetUnfolder]: 146/331 cut-off events. [2023-08-30 03:20:14,828 INFO L131 PetriNetUnfolder]: For 1253/1284 co-relation queries the response was YES. [2023-08-30 03:20:14,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1603 conditions, 331 events. 146/331 cut-off events. For 1253/1284 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1556 event pairs, 24 based on Foata normal form. 60/383 useless extension candidates. Maximal degree in co-relation 1584. Up to 138 conditions per place. [2023-08-30 03:20:14,830 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 36 selfloop transitions, 7 changer transitions 1/57 dead transitions. [2023-08-30 03:20:14,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 57 transitions, 573 flow [2023-08-30 03:20:14,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:20:14,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:20:14,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2023-08-30 03:20:14,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5096685082872928 [2023-08-30 03:20:14,832 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 369 transitions. [2023-08-30 03:20:14,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 369 transitions. [2023-08-30 03:20:14,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:14,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 369 transitions. [2023-08-30 03:20:14,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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 03:20:14,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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 03:20:14,834 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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 03:20:14,834 INFO L175 Difference]: Start difference. First operand has 54 places, 38 transitions, 338 flow. Second operand 4 states and 369 transitions. [2023-08-30 03:20:14,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 57 transitions, 573 flow [2023-08-30 03:20:14,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 57 transitions, 557 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-30 03:20:14,837 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 357 flow [2023-08-30 03:20:14,837 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2023-08-30 03:20:14,837 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 19 predicate places. [2023-08-30 03:20:14,838 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 357 flow [2023-08-30 03:20:14,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 03:20:14,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:14,838 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:14,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 03:20:14,838 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:14,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:14,839 INFO L85 PathProgramCache]: Analyzing trace with hash 524233750, now seen corresponding path program 1 times [2023-08-30 03:20:14,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:14,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620092288] [2023-08-30 03:20:14,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:14,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:14,920 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 03:20:14,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:14,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620092288] [2023-08-30 03:20:14,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620092288] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:14,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:14,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:14,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278243073] [2023-08-30 03:20:14,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:14,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:14,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:14,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:14,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:14,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 181 [2023-08-30 03:20:14,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 357 flow. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 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 03:20:14,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:14,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 181 [2023-08-30 03:20:14,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:14,976 INFO L130 PetriNetUnfolder]: 126/276 cut-off events. [2023-08-30 03:20:14,977 INFO L131 PetriNetUnfolder]: For 1333/1375 co-relation queries the response was YES. [2023-08-30 03:20:14,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1437 conditions, 276 events. 126/276 cut-off events. For 1333/1375 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1278 event pairs, 18 based on Foata normal form. 46/314 useless extension candidates. Maximal degree in co-relation 1420. Up to 105 conditions per place. [2023-08-30 03:20:14,978 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2023-08-30 03:20:14,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 54 transitions, 559 flow [2023-08-30 03:20:14,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:14,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:14,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 450 transitions. [2023-08-30 03:20:14,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4972375690607735 [2023-08-30 03:20:14,979 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 450 transitions. [2023-08-30 03:20:14,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 450 transitions. [2023-08-30 03:20:14,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:14,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 450 transitions. [2023-08-30 03:20:14,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 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 03:20:14,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 03:20:14,982 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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 03:20:14,982 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 357 flow. Second operand 5 states and 450 transitions. [2023-08-30 03:20:14,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 54 transitions, 559 flow [2023-08-30 03:20:14,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 54 transitions, 519 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-08-30 03:20:14,984 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2023-08-30 03:20:14,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2023-08-30 03:20:14,985 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2023-08-30 03:20:14,985 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2023-08-30 03:20:14,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 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 03:20:14,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-30 03:20:14,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-30 03:20:14,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-30 03:20:14,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-30 03:20:14,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-30 03:20:14,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-30 03:20:14,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-30 03:20:14,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-30 03:20:14,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-30 03:20:14,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-30 03:20:14,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-30 03:20:14,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 03:20:14,989 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:14,991 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:20:14,991 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:20:14,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:20:14 BasicIcfg [2023-08-30 03:20:14,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:20:14,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:20:14,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:20:14,994 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:20:14,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:20:09" (3/4) ... [2023-08-30 03:20:14,996 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:20:14,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:20:15,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:20:15,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 03:20:15,002 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 03:20:15,003 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:20:15,003 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:20:15,003 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:20:15,022 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:20:15,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:20:15,023 INFO L158 Benchmark]: Toolchain (without parser) took 6380.90ms. Allocated memory was 113.2MB in the beginning and 247.5MB in the end (delta: 134.2MB). Free memory was 60.9MB in the beginning and 212.6MB in the end (delta: -151.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:20:15,023 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 37.1MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:20:15,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.92ms. Allocated memory is still 113.2MB. Free memory was 60.5MB in the beginning and 77.4MB in the end (delta: -16.9MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-08-30 03:20:15,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.90ms. Allocated memory is still 113.2MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:20:15,023 INFO L158 Benchmark]: Boogie Preprocessor took 49.70ms. Allocated memory is still 113.2MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:20:15,024 INFO L158 Benchmark]: RCFGBuilder took 376.49ms. Allocated memory is still 113.2MB. Free memory was 73.7MB in the beginning and 59.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:20:15,024 INFO L158 Benchmark]: TraceAbstraction took 5374.52ms. Allocated memory was 113.2MB in the beginning and 247.5MB in the end (delta: 134.2MB). Free memory was 58.0MB in the beginning and 214.7MB in the end (delta: -156.7MB). Peak memory consumption was 116.9MB. Max. memory is 16.1GB. [2023-08-30 03:20:15,024 INFO L158 Benchmark]: Witness Printer took 28.92ms. Allocated memory is still 247.5MB. Free memory was 214.7MB in the beginning and 212.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:20:15,025 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 58.7MB. Free memory was 37.2MB in the beginning and 37.1MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.92ms. Allocated memory is still 113.2MB. Free memory was 60.5MB in the beginning and 77.4MB in the end (delta: -16.9MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.90ms. Allocated memory is still 113.2MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.70ms. Allocated memory is still 113.2MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.49ms. Allocated memory is still 113.2MB. Free memory was 73.7MB in the beginning and 59.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5374.52ms. Allocated memory was 113.2MB in the beginning and 247.5MB in the end (delta: 134.2MB). Free memory was 58.0MB in the beginning and 214.7MB in the end (delta: -156.7MB). Peak memory consumption was 116.9MB. Max. memory is 16.1GB. * Witness Printer took 28.92ms. Allocated memory is still 247.5MB. Free memory was 214.7MB in the beginning and 212.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 95 PlacesBefore, 35 PlacesAfterwards, 87 TransitionsBefore, 26 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 5 FixpointIterations, 30 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 87 TotalNumberOfCompositions, 2934 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1611, independent: 1529, independent conditional: 0, independent unconditional: 1529, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 832, independent: 806, independent conditional: 0, independent unconditional: 806, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1611, independent: 723, independent conditional: 0, independent unconditional: 723, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 832, unknown conditional: 0, unknown unconditional: 832] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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, 117 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: 5.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 456 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 324 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 946 IncrementalHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 49 mSDtfsCounter, 946 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=565occurred in iteration=6, InterpolantAutomatonStates: 54, 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, 1.2s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 841 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 03:20:15,041 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