./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.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/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.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 10dd65d363f3d099295f575f6743961c3e6b480300728ce34fc95b90972dc72c --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 03:18:06,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:18:06,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:18:06,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:18:06,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:18:06,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:18:06,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:18:06,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:18:06,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:18:06,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:18:06,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:18:06,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:18:06,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:18:06,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:18:06,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:18:06,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:18:06,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:18:06,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:18:06,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:18:06,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:18:06,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:18:06,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:18:06,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:18:06,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:18:06,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:18:06,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:18:06,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:18:06,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:18:06,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:18:06,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:18:06,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:18:06,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:18:06,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:18:06,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:18:06,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:18:06,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:18:06,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:18:06,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:18:06,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:18:06,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:18:06,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:18:06,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:18:06,942 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:18:06,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:18:06,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:18:06,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:18:06,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:18:06,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:18:06,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:18:06,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:18:06,945 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:18:06,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:18:06,945 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:18:06,946 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:18:06,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:18:06,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:18:06,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:18:06,946 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:18:06,946 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:18:06,947 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:18:06,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:18:06,947 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:18:06,947 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:18:06,947 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:18:06,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:18:06,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:18:06,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:18:06,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:18:06,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:18:06,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:18:06,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:18:06,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:18:06,949 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:18:06,949 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:18:06,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:18:06,949 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:18:06,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10dd65d363f3d099295f575f6743961c3e6b480300728ce34fc95b90972dc72c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:18:07,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:18:07,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:18:07,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:18:07,203 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:18:07,203 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:18:07,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:18:08,203 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:18:08,376 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:18:08,377 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:18:08,384 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4617d11d/4668c1b777df4fb48babf50fe5b409d9/FLAG9580760cd [2023-08-30 03:18:08,756 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4617d11d/4668c1b777df4fb48babf50fe5b409d9 [2023-08-30 03:18:08,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:18:08,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:18:08,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:18:08,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:18:08,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:18:08,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:18:08" (1/1) ... [2023-08-30 03:18:08,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f352b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:08, skipping insertion in model container [2023-08-30 03:18:08,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:18:08" (1/1) ... [2023-08-30 03:18:08,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:18:08,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:18:08,926 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/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 03:18:09,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:18:09,049 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:18:09,060 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/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 03:18:09,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:18:09,133 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:18:09,134 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:18:09,138 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:18:09,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09 WrapperNode [2023-08-30 03:18:09,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:18:09,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:18:09,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:18:09,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:18:09,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (1/1) ... [2023-08-30 03:18:09,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (1/1) ... [2023-08-30 03:18:09,172 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-08-30 03:18:09,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:18:09,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:18:09,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:18:09,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:18:09,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (1/1) ... [2023-08-30 03:18:09,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (1/1) ... [2023-08-30 03:18:09,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (1/1) ... [2023-08-30 03:18:09,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (1/1) ... [2023-08-30 03:18:09,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (1/1) ... [2023-08-30 03:18:09,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (1/1) ... [2023-08-30 03:18:09,207 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (1/1) ... [2023-08-30 03:18:09,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (1/1) ... [2023-08-30 03:18:09,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:18:09,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:18:09,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:18:09,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:18:09,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (1/1) ... [2023-08-30 03:18:09,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:18:09,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:18:09,244 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 03:18:09,261 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 03:18:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:18:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:18:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:18:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:18:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:18:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 03:18:09,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 03:18:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 03:18:09,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 03:18:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 03:18:09,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 03:18:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:18:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:18:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:18:09,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:18:09,276 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 03:18:09,413 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:18:09,414 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:18:09,602 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:18:09,606 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:18:09,608 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:18:09,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:18:09 BoogieIcfgContainer [2023-08-30 03:18:09,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:18:09,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:18:09,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:18:09,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:18:09,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:18:08" (1/3) ... [2023-08-30 03:18:09,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a61f5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:18:09, skipping insertion in model container [2023-08-30 03:18:09,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:18:09" (2/3) ... [2023-08-30 03:18:09,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a61f5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:18:09, skipping insertion in model container [2023-08-30 03:18:09,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:18:09" (3/3) ... [2023-08-30 03:18:09,616 INFO L112 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:18:09,627 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:18:09,628 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 03:18:09,628 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:18:09,692 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:18:09,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 203 flow [2023-08-30 03:18:09,765 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2023-08-30 03:18:09,765 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:18:09,769 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 68 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2023-08-30 03:18:09,769 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 94 transitions, 203 flow [2023-08-30 03:18:09,772 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 87 transitions, 183 flow [2023-08-30 03:18:09,775 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:18:09,789 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 87 transitions, 183 flow [2023-08-30 03:18:09,799 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 87 transitions, 183 flow [2023-08-30 03:18:09,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 87 transitions, 183 flow [2023-08-30 03:18:09,812 INFO L130 PetriNetUnfolder]: 2/87 cut-off events. [2023-08-30 03:18:09,817 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:18:09,818 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 67 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-30 03:18:09,819 INFO L119 LiptonReduction]: Number of co-enabled transitions 1416 [2023-08-30 03:18:11,822 INFO L134 LiptonReduction]: Checked pairs total: 2687 [2023-08-30 03:18:11,823 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-08-30 03:18:11,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:18:11,840 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;@bcfa528, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:18:11,841 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-30 03:18:11,842 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:18:11,842 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:18:11,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:18:11,843 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:18:11,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:18:11,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:18:11,847 INFO L85 PathProgramCache]: Analyzing trace with hash 335, now seen corresponding path program 1 times [2023-08-30 03:18:11,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:18:11,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280523198] [2023-08-30 03:18:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:18:11,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:18:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:18:11,933 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 03:18:11,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:18:11,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280523198] [2023-08-30 03:18:11,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280523198] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:18:11,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:18:11,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:18:11,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171696638] [2023-08-30 03:18:11,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:18:11,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:18:11,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:18:11,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:18:11,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:18:11,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 182 [2023-08-30 03:18:11,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 59 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 03:18:11,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:18:11,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 182 [2023-08-30 03:18:11,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:18:12,098 INFO L130 PetriNetUnfolder]: 272/452 cut-off events. [2023-08-30 03:18:12,098 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 03:18:12,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 915 conditions, 452 events. 272/452 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1865 event pairs, 272 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 904. Up to 433 conditions per place. [2023-08-30 03:18:12,103 INFO L137 encePairwiseOnDemand]: 175/182 looper letters, 16 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2023-08-30 03:18:12,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 77 flow [2023-08-30 03:18:12,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:18:12,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:18:12,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 199 transitions. [2023-08-30 03:18:12,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5467032967032966 [2023-08-30 03:18:12,112 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 199 transitions. [2023-08-30 03:18:12,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 199 transitions. [2023-08-30 03:18:12,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:18:12,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 199 transitions. [2023-08-30 03:18:12,115 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 03:18:12,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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 03:18:12,124 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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 03:18:12,125 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 59 flow. Second operand 2 states and 199 transitions. [2023-08-30 03:18:12,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 77 flow [2023-08-30 03:18:12,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 03:18:12,127 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 42 flow [2023-08-30 03:18:12,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-08-30 03:18:12,131 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -8 predicate places. [2023-08-30 03:18:12,132 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 42 flow [2023-08-30 03:18:12,132 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 03:18:12,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:18:12,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:18:12,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:18:12,134 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 03:18:12,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:18:12,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1756077030, now seen corresponding path program 1 times [2023-08-30 03:18:12,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:18:12,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248417320] [2023-08-30 03:18:12,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:18:12,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:18:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:18:12,652 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 03:18:12,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:18:12,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248417320] [2023-08-30 03:18:12,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248417320] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:18:12,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:18:12,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:18:12,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149982557] [2023-08-30 03:18:12,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:18:12,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:18:12,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:18:12,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:18:12,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:18:12,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 182 [2023-08-30 03:18:12,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 42 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 03:18:12,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:18:12,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 182 [2023-08-30 03:18:12,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:18:12,842 INFO L130 PetriNetUnfolder]: 218/388 cut-off events. [2023-08-30 03:18:12,843 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:18:12,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 768 conditions, 388 events. 218/388 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1611 event pairs, 3 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 765. Up to 222 conditions per place. [2023-08-30 03:18:12,847 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 24 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2023-08-30 03:18:12,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 30 transitions, 122 flow [2023-08-30 03:18:12,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:18:12,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:18:12,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2023-08-30 03:18:12,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2023-08-30 03:18:12,852 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 468 transitions. [2023-08-30 03:18:12,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 468 transitions. [2023-08-30 03:18:12,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:18:12,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 468 transitions. [2023-08-30 03:18:12,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 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 03:18:12,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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 03:18:12,859 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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 03:18:12,860 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 42 flow. Second operand 6 states and 468 transitions. [2023-08-30 03:18:12,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 30 transitions, 122 flow [2023-08-30 03:18:12,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 122 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:18:12,861 INFO L231 Difference]: Finished difference. Result has 30 places, 17 transitions, 48 flow [2023-08-30 03:18:12,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=48, PETRI_PLACES=30, PETRI_TRANSITIONS=17} [2023-08-30 03:18:12,862 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -4 predicate places. [2023-08-30 03:18:12,862 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 17 transitions, 48 flow [2023-08-30 03:18:12,862 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 03:18:12,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:18:12,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:18:12,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:18:12,863 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 03:18:12,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:18:12,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1756077003, now seen corresponding path program 1 times [2023-08-30 03:18:12,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:18:12,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552226885] [2023-08-30 03:18:12,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:18:12,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:18:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:18:12,966 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 03:18:12,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:18:12,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552226885] [2023-08-30 03:18:12,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552226885] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:18:12,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:18:12,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:18:12,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476235209] [2023-08-30 03:18:12,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:18:12,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:18:12,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:18:12,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:18:12,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:18:12,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 182 [2023-08-30 03:18:12,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 17 transitions, 48 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 03:18:12,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:18:12,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 182 [2023-08-30 03:18:12,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:18:13,044 INFO L130 PetriNetUnfolder]: 212/383 cut-off events. [2023-08-30 03:18:13,045 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-30 03:18:13,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 807 conditions, 383 events. 212/383 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1643 event pairs, 62 based on Foata normal form. 27/409 useless extension candidates. Maximal degree in co-relation 803. Up to 205 conditions per place. [2023-08-30 03:18:13,048 INFO L137 encePairwiseOnDemand]: 178/182 looper letters, 18 selfloop transitions, 2 changer transitions 11/33 dead transitions. [2023-08-30 03:18:13,048 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 33 transitions, 144 flow [2023-08-30 03:18:13,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:18:13,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:18:13,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 458 transitions. [2023-08-30 03:18:13,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5032967032967033 [2023-08-30 03:18:13,050 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 458 transitions. [2023-08-30 03:18:13,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 458 transitions. [2023-08-30 03:18:13,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:18:13,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 458 transitions. [2023-08-30 03:18:13,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:18:13,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 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 03:18:13,052 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 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 03:18:13,052 INFO L175 Difference]: Start difference. First operand has 30 places, 17 transitions, 48 flow. Second operand 5 states and 458 transitions. [2023-08-30 03:18:13,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 33 transitions, 144 flow [2023-08-30 03:18:13,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 136 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 03:18:13,053 INFO L231 Difference]: Finished difference. Result has 33 places, 17 transitions, 53 flow [2023-08-30 03:18:13,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=53, PETRI_PLACES=33, PETRI_TRANSITIONS=17} [2023-08-30 03:18:13,054 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2023-08-30 03:18:13,056 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 17 transitions, 53 flow [2023-08-30 03:18:13,057 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 03:18:13,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:18:13,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:18:13,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:18:13,057 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 03:18:13,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:18:13,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1396202113, now seen corresponding path program 1 times [2023-08-30 03:18:13,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:18:13,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581342618] [2023-08-30 03:18:13,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:18:13,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:18:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:18:13,185 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 03:18:13,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:18:13,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581342618] [2023-08-30 03:18:13,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581342618] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:18:13,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:18:13,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:18:13,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161960064] [2023-08-30 03:18:13,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:18:13,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:18:13,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:18:13,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:18:13,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:18:13,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 182 [2023-08-30 03:18:13,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 17 transitions, 53 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 03:18:13,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:18:13,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 182 [2023-08-30 03:18:13,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:18:13,264 INFO L130 PetriNetUnfolder]: 211/376 cut-off events. [2023-08-30 03:18:13,264 INFO L131 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2023-08-30 03:18:13,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 874 conditions, 376 events. 211/376 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1702 event pairs, 36 based on Foata normal form. 18/393 useless extension candidates. Maximal degree in co-relation 867. Up to 129 conditions per place. [2023-08-30 03:18:13,266 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 21 selfloop transitions, 3 changer transitions 13/39 dead transitions. [2023-08-30 03:18:13,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 181 flow [2023-08-30 03:18:13,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:18:13,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:18:13,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 537 transitions. [2023-08-30 03:18:13,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49175824175824173 [2023-08-30 03:18:13,268 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 537 transitions. [2023-08-30 03:18:13,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 537 transitions. [2023-08-30 03:18:13,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:18:13,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 537 transitions. [2023-08-30 03:18:13,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.5) internal successors, (537), 6 states have internal predecessors, (537), 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 03:18:13,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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 03:18:13,271 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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 03:18:13,271 INFO L175 Difference]: Start difference. First operand has 33 places, 17 transitions, 53 flow. Second operand 6 states and 537 transitions. [2023-08-30 03:18:13,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 181 flow [2023-08-30 03:18:13,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 171 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-30 03:18:13,273 INFO L231 Difference]: Finished difference. Result has 36 places, 17 transitions, 63 flow [2023-08-30 03:18:13,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=63, PETRI_PLACES=36, PETRI_TRANSITIONS=17} [2023-08-30 03:18:13,274 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2023-08-30 03:18:13,274 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 17 transitions, 63 flow [2023-08-30 03:18:13,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 03:18:13,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:18:13,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:18:13,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:18:13,275 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 03:18:13,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:18:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash -332994184, now seen corresponding path program 1 times [2023-08-30 03:18:13,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:18:13,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006382554] [2023-08-30 03:18:13,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:18:13,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:18:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:18:13,376 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 03:18:13,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:18:13,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006382554] [2023-08-30 03:18:13,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006382554] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:18:13,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:18:13,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:18:13,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466493933] [2023-08-30 03:18:13,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:18:13,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:18:13,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:18:13,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:18:13,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:18:13,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 182 [2023-08-30 03:18:13,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 17 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:18:13,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:18:13,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 182 [2023-08-30 03:18:13,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:18:13,412 INFO L130 PetriNetUnfolder]: 96/181 cut-off events. [2023-08-30 03:18:13,413 INFO L131 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2023-08-30 03:18:13,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 504 conditions, 181 events. 96/181 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 571 event pairs, 32 based on Foata normal form. 6/186 useless extension candidates. Maximal degree in co-relation 495. Up to 147 conditions per place. [2023-08-30 03:18:13,414 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 21 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2023-08-30 03:18:13,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 146 flow [2023-08-30 03:18:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:18:13,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:18:13,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2023-08-30 03:18:13,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5091575091575091 [2023-08-30 03:18:13,415 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2023-08-30 03:18:13,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2023-08-30 03:18:13,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:18:13,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2023-08-30 03:18:13,416 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 03:18:13,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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 03:18:13,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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 03:18:13,417 INFO L175 Difference]: Start difference. First operand has 36 places, 17 transitions, 63 flow. Second operand 3 states and 278 transitions. [2023-08-30 03:18:13,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 146 flow [2023-08-30 03:18:13,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 125 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-30 03:18:13,418 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 73 flow [2023-08-30 03:18:13,418 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-08-30 03:18:13,419 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2023-08-30 03:18:13,419 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 73 flow [2023-08-30 03:18:13,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:18:13,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:18:13,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:18:13,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:18:13,420 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 03:18:13,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:18:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash -463200432, now seen corresponding path program 1 times [2023-08-30 03:18:13,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:18:13,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862047674] [2023-08-30 03:18:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:18:13,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:18:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:18:13,526 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 03:18:13,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:18:13,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862047674] [2023-08-30 03:18:13,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862047674] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:18:13,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:18:13,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:18:13,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482772978] [2023-08-30 03:18:13,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:18:13,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:18:13,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:18:13,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:18:13,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:18:13,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 182 [2023-08-30 03:18:13,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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 03:18:13,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:18:13,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 182 [2023-08-30 03:18:13,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:18:13,571 INFO L130 PetriNetUnfolder]: 59/125 cut-off events. [2023-08-30 03:18:13,571 INFO L131 PetriNetUnfolder]: For 29/33 co-relation queries the response was YES. [2023-08-30 03:18:13,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 125 events. 59/125 cut-off events. For 29/33 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 350 event pairs, 15 based on Foata normal form. 13/137 useless extension candidates. Maximal degree in co-relation 371. Up to 52 conditions per place. [2023-08-30 03:18:13,572 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 25 selfloop transitions, 7 changer transitions 0/34 dead transitions. [2023-08-30 03:18:13,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 34 transitions, 184 flow [2023-08-30 03:18:13,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:18:13,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:18:13,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2023-08-30 03:18:13,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5068681318681318 [2023-08-30 03:18:13,574 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 369 transitions. [2023-08-30 03:18:13,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 369 transitions. [2023-08-30 03:18:13,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:18:13,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 369 transitions. [2023-08-30 03:18:13,575 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 03:18:13,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 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 03:18:13,576 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 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 03:18:13,576 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 73 flow. Second operand 4 states and 369 transitions. [2023-08-30 03:18:13,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 34 transitions, 184 flow [2023-08-30 03:18:13,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 34 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:18:13,578 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 109 flow [2023-08-30 03:18:13,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-30 03:18:13,578 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2023-08-30 03:18:13,578 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 109 flow [2023-08-30 03:18:13,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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 03:18:13,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:18:13,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:18:13,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:18:13,579 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:18:13,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:18:13,580 INFO L85 PathProgramCache]: Analyzing trace with hash -109984675, now seen corresponding path program 1 times [2023-08-30 03:18:13,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:18:13,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890622067] [2023-08-30 03:18:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:18:13,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:18:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:18:13,852 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 03:18:13,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:18:13,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890622067] [2023-08-30 03:18:13,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890622067] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:18:13,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:18:13,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:18:13,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562581694] [2023-08-30 03:18:13,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:18:13,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:18:13,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:18:13,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:18:13,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:18:13,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 182 [2023-08-30 03:18:13,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 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 03:18:13,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:18:13,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 182 [2023-08-30 03:18:13,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:18:13,899 INFO L130 PetriNetUnfolder]: 46/99 cut-off events. [2023-08-30 03:18:13,900 INFO L131 PetriNetUnfolder]: For 114/122 co-relation queries the response was YES. [2023-08-30 03:18:13,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 99 events. 46/99 cut-off events. For 114/122 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 265 event pairs, 12 based on Foata normal form. 13/111 useless extension candidates. Maximal degree in co-relation 332. Up to 40 conditions per place. [2023-08-30 03:18:13,900 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 22 selfloop transitions, 10 changer transitions 0/34 dead transitions. [2023-08-30 03:18:13,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 34 transitions, 208 flow [2023-08-30 03:18:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:18:13,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:18:13,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2023-08-30 03:18:13,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4978021978021978 [2023-08-30 03:18:13,902 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2023-08-30 03:18:13,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2023-08-30 03:18:13,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:18:13,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2023-08-30 03:18:13,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:18:13,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 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 03:18:13,905 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 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 03:18:13,905 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 109 flow. Second operand 5 states and 453 transitions. [2023-08-30 03:18:13,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 34 transitions, 208 flow [2023-08-30 03:18:13,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 188 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-30 03:18:13,906 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 119 flow [2023-08-30 03:18:13,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=119, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2023-08-30 03:18:13,907 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2023-08-30 03:18:13,907 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 119 flow [2023-08-30 03:18:13,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 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 03:18:13,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:18:13,907 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:18:13,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:18:13,908 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 03:18:13,908 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:18:13,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1574289242, now seen corresponding path program 1 times [2023-08-30 03:18:13,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:18:13,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874227395] [2023-08-30 03:18:13,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:18:13,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:18:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:18:13,996 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 03:18:13,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:18:13,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874227395] [2023-08-30 03:18:13,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874227395] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:18:13,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:18:13,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:18:13,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638338977] [2023-08-30 03:18:13,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:18:13,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:18:13,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:18:13,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:18:13,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:18:14,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 182 [2023-08-30 03:18:14,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 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 03:18:14,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:18:14,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 182 [2023-08-30 03:18:14,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:18:14,097 INFO L130 PetriNetUnfolder]: 84/170 cut-off events. [2023-08-30 03:18:14,097 INFO L131 PetriNetUnfolder]: For 257/257 co-relation queries the response was YES. [2023-08-30 03:18:14,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 170 events. 84/170 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 538 event pairs, 6 based on Foata normal form. 1/171 useless extension candidates. Maximal degree in co-relation 577. Up to 96 conditions per place. [2023-08-30 03:18:14,098 INFO L137 encePairwiseOnDemand]: 175/182 looper letters, 34 selfloop transitions, 7 changer transitions 13/54 dead transitions. [2023-08-30 03:18:14,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 391 flow [2023-08-30 03:18:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:18:14,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:18:14,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 515 transitions. [2023-08-30 03:18:14,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4716117216117216 [2023-08-30 03:18:14,100 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 515 transitions. [2023-08-30 03:18:14,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 515 transitions. [2023-08-30 03:18:14,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:18:14,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 515 transitions. [2023-08-30 03:18:14,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 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 03:18:14,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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 03:18:14,103 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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 03:18:14,103 INFO L175 Difference]: Start difference. First operand has 36 places, 23 transitions, 119 flow. Second operand 6 states and 515 transitions. [2023-08-30 03:18:14,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 391 flow [2023-08-30 03:18:14,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 54 transitions, 333 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-30 03:18:14,105 INFO L231 Difference]: Finished difference. Result has 41 places, 27 transitions, 133 flow [2023-08-30 03:18:14,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=133, PETRI_PLACES=41, PETRI_TRANSITIONS=27} [2023-08-30 03:18:14,105 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2023-08-30 03:18:14,105 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 133 flow [2023-08-30 03:18:14,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 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 03:18:14,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:18:14,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:18:14,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:18:14,106 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 03:18:14,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:18:14,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1551982912, now seen corresponding path program 2 times [2023-08-30 03:18:14,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:18:14,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021736658] [2023-08-30 03:18:14,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:18:14,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:18:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:18:14,194 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 03:18:14,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:18:14,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021736658] [2023-08-30 03:18:14,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021736658] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:18:14,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:18:14,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:18:14,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47413640] [2023-08-30 03:18:14,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:18:14,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:18:14,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:18:14,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:18:14,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:18:14,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 182 [2023-08-30 03:18:14,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 27 transitions, 133 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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 03:18:14,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:18:14,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 182 [2023-08-30 03:18:14,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:18:14,289 INFO L130 PetriNetUnfolder]: 84/179 cut-off events. [2023-08-30 03:18:14,289 INFO L131 PetriNetUnfolder]: For 196/196 co-relation queries the response was YES. [2023-08-30 03:18:14,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 179 events. 84/179 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 589 event pairs, 6 based on Foata normal form. 1/180 useless extension candidates. Maximal degree in co-relation 640. Up to 88 conditions per place. [2023-08-30 03:18:14,290 INFO L137 encePairwiseOnDemand]: 175/182 looper letters, 25 selfloop transitions, 3 changer transitions 27/55 dead transitions. [2023-08-30 03:18:14,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 55 transitions, 375 flow [2023-08-30 03:18:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:18:14,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:18:14,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 595 transitions. [2023-08-30 03:18:14,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46703296703296704 [2023-08-30 03:18:14,292 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 595 transitions. [2023-08-30 03:18:14,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 595 transitions. [2023-08-30 03:18:14,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:18:14,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 595 transitions. [2023-08-30 03:18:14,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 85.0) internal successors, (595), 7 states have internal predecessors, (595), 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 03:18:14,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 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 03:18:14,295 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 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 03:18:14,295 INFO L175 Difference]: Start difference. First operand has 41 places, 27 transitions, 133 flow. Second operand 7 states and 595 transitions. [2023-08-30 03:18:14,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 55 transitions, 375 flow [2023-08-30 03:18:14,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 55 transitions, 373 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 03:18:14,297 INFO L231 Difference]: Finished difference. Result has 47 places, 23 transitions, 116 flow [2023-08-30 03:18:14,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=116, PETRI_PLACES=47, PETRI_TRANSITIONS=23} [2023-08-30 03:18:14,298 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 13 predicate places. [2023-08-30 03:18:14,298 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 23 transitions, 116 flow [2023-08-30 03:18:14,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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 03:18:14,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:18:14,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:18:14,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:18:14,299 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 03:18:14,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:18:14,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1983789254, now seen corresponding path program 3 times [2023-08-30 03:18:14,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:18:14,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777356351] [2023-08-30 03:18:14,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:18:14,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:18:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:18:14,384 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 03:18:14,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:18:14,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777356351] [2023-08-30 03:18:14,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777356351] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:18:14,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:18:14,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:18:14,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481055695] [2023-08-30 03:18:14,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:18:14,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:18:14,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:18:14,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:18:14,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:18:14,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 182 [2023-08-30 03:18:14,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 23 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 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 03:18:14,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:18:14,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 182 [2023-08-30 03:18:14,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:18:14,455 INFO L130 PetriNetUnfolder]: 22/60 cut-off events. [2023-08-30 03:18:14,456 INFO L131 PetriNetUnfolder]: For 83/83 co-relation queries the response was YES. [2023-08-30 03:18:14,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 60 events. 22/60 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 121 event pairs, 4 based on Foata normal form. 1/61 useless extension candidates. Maximal degree in co-relation 222. Up to 33 conditions per place. [2023-08-30 03:18:14,457 INFO L137 encePairwiseOnDemand]: 176/182 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-08-30 03:18:14,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 28 transitions, 198 flow [2023-08-30 03:18:14,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:18:14,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:18:14,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 495 transitions. [2023-08-30 03:18:14,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4532967032967033 [2023-08-30 03:18:14,459 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 495 transitions. [2023-08-30 03:18:14,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 495 transitions. [2023-08-30 03:18:14,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:18:14,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 495 transitions. [2023-08-30 03:18:14,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 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 03:18:14,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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 03:18:14,466 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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 03:18:14,466 INFO L175 Difference]: Start difference. First operand has 47 places, 23 transitions, 116 flow. Second operand 6 states and 495 transitions. [2023-08-30 03:18:14,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 28 transitions, 198 flow [2023-08-30 03:18:14,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 28 transitions, 185 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-30 03:18:14,467 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2023-08-30 03:18:14,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2023-08-30 03:18:14,468 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2023-08-30 03:18:14,468 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2023-08-30 03:18:14,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 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 03:18:14,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-30 03:18:14,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-30 03:18:14,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-30 03:18:14,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-30 03:18:14,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-30 03:18:14,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-30 03:18:14,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-30 03:18:14,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-30 03:18:14,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-30 03:18:14,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-30 03:18:14,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-30 03:18:14,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 03:18:14,472 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:18:14,474 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:18:14,475 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:18:14,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:18:14 BasicIcfg [2023-08-30 03:18:14,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:18:14,477 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:18:14,477 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:18:14,478 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:18:14,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:18:09" (3/4) ... [2023-08-30 03:18:14,480 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:18:14,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:18:14,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:18:14,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 03:18:14,487 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 03:18:14,487 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:18:14,487 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:18:14,488 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:18:14,506 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:18:14,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:18:14,506 INFO L158 Benchmark]: Toolchain (without parser) took 5747.15ms. Allocated memory was 86.0MB in the beginning and 142.6MB in the end (delta: 56.6MB). Free memory was 49.9MB in the beginning and 65.3MB in the end (delta: -15.3MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2023-08-30 03:18:14,507 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:18:14,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.81ms. Allocated memory is still 86.0MB. Free memory was 49.9MB in the beginning and 63.4MB in the end (delta: -13.5MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2023-08-30 03:18:14,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.75ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 61.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:18:14,507 INFO L158 Benchmark]: Boogie Preprocessor took 36.33ms. Allocated memory is still 86.0MB. Free memory was 61.3MB in the beginning and 59.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:18:14,508 INFO L158 Benchmark]: RCFGBuilder took 395.04ms. Allocated memory is still 86.0MB. Free memory was 59.7MB in the beginning and 45.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:18:14,508 INFO L158 Benchmark]: TraceAbstraction took 4865.41ms. Allocated memory was 86.0MB in the beginning and 142.6MB in the end (delta: 56.6MB). Free memory was 44.7MB in the beginning and 68.4MB in the end (delta: -23.8MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2023-08-30 03:18:14,508 INFO L158 Benchmark]: Witness Printer took 28.63ms. Allocated memory is still 142.6MB. Free memory was 68.4MB in the beginning and 65.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 03:18:14,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.81ms. Allocated memory is still 86.0MB. Free memory was 49.9MB in the beginning and 63.4MB in the end (delta: -13.5MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.75ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 61.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.33ms. Allocated memory is still 86.0MB. Free memory was 61.3MB in the beginning and 59.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.04ms. Allocated memory is still 86.0MB. Free memory was 59.7MB in the beginning and 45.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4865.41ms. Allocated memory was 86.0MB in the beginning and 142.6MB in the end (delta: 56.6MB). Free memory was 44.7MB in the beginning and 68.4MB in the end (delta: -23.8MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Witness Printer took 28.63ms. Allocated memory is still 142.6MB. Free memory was 68.4MB in the beginning and 65.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 95 PlacesBefore, 34 PlacesAfterwards, 87 TransitionsBefore, 25 TransitionsAfterwards, 1416 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 2687 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1561, independent: 1479, independent conditional: 0, independent unconditional: 1479, 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: 782, independent: 761, independent conditional: 0, independent unconditional: 761, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1561, independent: 718, independent conditional: 0, independent unconditional: 718, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 782, unknown conditional: 0, unknown unconditional: 782] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, 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: 775]: 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, 116 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: 4.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 389 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 298 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 806 IncrementalHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 26 mSDtfsCounter, 806 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=8, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 591 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:18:14,525 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