./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix035.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix035.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65062a4b0d520b12bcf8d6a9b80d96fd04b54c0c91d2bd97d502a34cc77f9c59 --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 12:59:32,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:59:32,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:59:32,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:59:32,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:59:32,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:59:32,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:59:32,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:59:32,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:59:32,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:59:32,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:59:32,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:59:32,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:59:32,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:59:32,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:59:32,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:59:32,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:59:32,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:59:32,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:59:32,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:59:32,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:59:32,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:59:32,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:59:32,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:59:32,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:59:32,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:59:32,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:59:32,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:59:32,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:59:32,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:59:32,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:59:32,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:59:32,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:59:32,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:59:32,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:59:32,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:59:32,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:59:32,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:59:32,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:59:32,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:59:32,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:59:32,461 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:59:32,494 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:59:32,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:59:32,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:59:32,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:59:32,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:59:32,497 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:59:32,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:59:32,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:59:32,498 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:59:32,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:59:32,499 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:59:32,499 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:59:32,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:59:32,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:59:32,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:59:32,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:59:32,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:59:32,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:59:32,500 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:59:32,501 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:59:32,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:59:32,505 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:59:32,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:59:32,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:59:32,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:59:32,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:59:32,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:59:32,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:59:32,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:59:32,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:59:32,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:59:32,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:59:32,509 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:59:32,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:59:32,509 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:59:32,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:59:32,509 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:59:32,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65062a4b0d520b12bcf8d6a9b80d96fd04b54c0c91d2bd97d502a34cc77f9c59 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 12:59:32,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:59:32,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:59:32,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:59:32,800 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:59:32,801 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:59:32,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix035.oepc.i [2023-08-30 12:59:34,034 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:59:34,334 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:59:34,334 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix035.oepc.i [2023-08-30 12:59:34,356 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83964bd7b/bf0d1d45237245cdae16a6153c102871/FLAG8aa8e34ad [2023-08-30 12:59:34,367 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83964bd7b/bf0d1d45237245cdae16a6153c102871 [2023-08-30 12:59:34,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:59:34,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:59:34,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:59:34,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:59:34,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:59:34,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:34,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226635f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34, skipping insertion in model container [2023-08-30 12:59:34,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:34,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:59:34,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:59:34,544 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/mix035.oepc.i[945,958] [2023-08-30 12:59:34,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:59:34,762 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:59:34,775 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/mix035.oepc.i[945,958] [2023-08-30 12:59:34,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:59:34,889 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:59:34,889 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:59:34,895 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:59:34,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34 WrapperNode [2023-08-30 12:59:34,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:59:34,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:59:34,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:59:34,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:59:34,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:34,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:34,969 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 133 [2023-08-30 12:59:34,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:59:34,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:59:34,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:59:34,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:59:34,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:34,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:34,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:34,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:35,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:35,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:35,012 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:35,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:35,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:59:35,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:59:35,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:59:35,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:59:35,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (1/1) ... [2023-08-30 12:59:35,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:59:35,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:59:35,057 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 12:59:35,078 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 12:59:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 12:59:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 12:59:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:59:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:59:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:59:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 12:59:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 12:59:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 12:59:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 12:59:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 12:59:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 12:59:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 12:59:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 12:59:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:59:35,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:59:35,098 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 12:59:35,290 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:59:35,292 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:59:35,562 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:59:35,679 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:59:35,680 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 12:59:35,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:59:35 BoogieIcfgContainer [2023-08-30 12:59:35,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:59:35,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:59:35,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:59:35,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:59:35,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:59:34" (1/3) ... [2023-08-30 12:59:35,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e99f898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:59:35, skipping insertion in model container [2023-08-30 12:59:35,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:34" (2/3) ... [2023-08-30 12:59:35,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e99f898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:59:35, skipping insertion in model container [2023-08-30 12:59:35,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:59:35" (3/3) ... [2023-08-30 12:59:35,688 INFO L112 eAbstractionObserver]: Analyzing ICFG mix035.oepc.i [2023-08-30 12:59:35,696 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:59:35,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:59:35,702 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 12:59:35,702 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:59:35,774 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 12:59:35,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 117 transitions, 249 flow [2023-08-30 12:59:35,850 INFO L130 PetriNetUnfolder]: 2/114 cut-off events. [2023-08-30 12:59:35,853 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:59:35,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2023-08-30 12:59:35,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 117 transitions, 249 flow [2023-08-30 12:59:35,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 114 transitions, 237 flow [2023-08-30 12:59:35,868 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 12:59:35,876 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 114 transitions, 237 flow [2023-08-30 12:59:35,883 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 114 transitions, 237 flow [2023-08-30 12:59:35,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 114 transitions, 237 flow [2023-08-30 12:59:35,906 INFO L130 PetriNetUnfolder]: 2/114 cut-off events. [2023-08-30 12:59:35,907 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:59:35,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2023-08-30 12:59:35,909 INFO L119 LiptonReduction]: Number of co-enabled transitions 2560 [2023-08-30 12:59:39,446 INFO L134 LiptonReduction]: Checked pairs total: 8988 [2023-08-30 12:59:39,447 INFO L136 LiptonReduction]: Total number of compositions: 96 [2023-08-30 12:59:39,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 12:59:39,465 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@26861a79, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 12:59:39,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 12:59:39,470 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 12:59:39,470 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:59:39,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:39,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 12:59:39,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 12:59:39,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:39,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1979429480, now seen corresponding path program 1 times [2023-08-30 12:59:39,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:39,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578052489] [2023-08-30 12:59:39,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:39,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:39,730 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 12:59:39,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:39,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578052489] [2023-08-30 12:59:39,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578052489] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:39,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:39,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 12:59:39,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531719586] [2023-08-30 12:59:39,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:39,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:59:39,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:39,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:59:39,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:59:39,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 213 [2023-08-30 12:59:39,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 12:59:39,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:39,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 213 [2023-08-30 12:59:39,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:40,199 INFO L130 PetriNetUnfolder]: 1273/1961 cut-off events. [2023-08-30 12:59:40,199 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-30 12:59:40,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3970 conditions, 1961 events. 1273/1961 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 9359 event pairs, 444 based on Foata normal form. 0/1653 useless extension candidates. Maximal degree in co-relation 3959. Up to 1382 conditions per place. [2023-08-30 12:59:40,216 INFO L137 encePairwiseOnDemand]: 203/213 looper letters, 40 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2023-08-30 12:59:40,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 46 transitions, 195 flow [2023-08-30 12:59:40,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:59:40,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:59:40,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 335 transitions. [2023-08-30 12:59:40,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5242566510172144 [2023-08-30 12:59:40,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 335 transitions. [2023-08-30 12:59:40,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 335 transitions. [2023-08-30 12:59:40,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:40,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 335 transitions. [2023-08-30 12:59:40,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 12:59:40,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 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 12:59:40,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 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 12:59:40,252 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 65 flow. Second operand 3 states and 335 transitions. [2023-08-30 12:59:40,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 46 transitions, 195 flow [2023-08-30 12:59:40,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 46 transitions, 190 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 12:59:40,257 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 98 flow [2023-08-30 12:59:40,259 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2023-08-30 12:59:40,262 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-08-30 12:59:40,263 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 98 flow [2023-08-30 12:59:40,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 12:59:40,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:40,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:59:40,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 12:59:40,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 12:59:40,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:40,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1783719006, now seen corresponding path program 1 times [2023-08-30 12:59:40,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:40,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345079350] [2023-08-30 12:59:40,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:40,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:40,478 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 12:59:40,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:40,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345079350] [2023-08-30 12:59:40,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345079350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:40,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:40,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:59:40,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424354617] [2023-08-30 12:59:40,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:40,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:59:40,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:40,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:59:40,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:59:40,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 213 [2023-08-30 12:59:40,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 12:59:40,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:40,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 213 [2023-08-30 12:59:40,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:40,764 INFO L130 PetriNetUnfolder]: 1043/1591 cut-off events. [2023-08-30 12:59:40,764 INFO L131 PetriNetUnfolder]: For 127/127 co-relation queries the response was YES. [2023-08-30 12:59:40,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3822 conditions, 1591 events. 1043/1591 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7289 event pairs, 396 based on Foata normal form. 0/1459 useless extension candidates. Maximal degree in co-relation 3811. Up to 1011 conditions per place. [2023-08-30 12:59:40,774 INFO L137 encePairwiseOnDemand]: 206/213 looper letters, 37 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2023-08-30 12:59:40,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 43 transitions, 202 flow [2023-08-30 12:59:40,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:59:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:59:40,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 424 transitions. [2023-08-30 12:59:40,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49765258215962443 [2023-08-30 12:59:40,777 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 424 transitions. [2023-08-30 12:59:40,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 424 transitions. [2023-08-30 12:59:40,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:40,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 424 transitions. [2023-08-30 12:59:40,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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 12:59:40,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 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 12:59:40,781 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 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 12:59:40,781 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 98 flow. Second operand 4 states and 424 transitions. [2023-08-30 12:59:40,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 43 transitions, 202 flow [2023-08-30 12:59:40,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:59:40,783 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 90 flow [2023-08-30 12:59:40,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=90, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-08-30 12:59:40,784 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2023-08-30 12:59:40,785 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 90 flow [2023-08-30 12:59:40,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 12:59:40,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:40,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:59:40,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 12:59:40,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 12:59:40,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:40,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1783719007, now seen corresponding path program 1 times [2023-08-30 12:59:40,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:40,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826024397] [2023-08-30 12:59:40,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:40,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:40,857 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 12:59:40,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:40,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826024397] [2023-08-30 12:59:40,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826024397] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:40,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:40,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:59:40,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476321780] [2023-08-30 12:59:40,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:40,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:59:40,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:40,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:59:40,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:59:40,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 213 [2023-08-30 12:59:40,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 12:59:40,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:40,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 213 [2023-08-30 12:59:40,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:41,113 INFO L130 PetriNetUnfolder]: 864/1308 cut-off events. [2023-08-30 12:59:41,113 INFO L131 PetriNetUnfolder]: For 424/424 co-relation queries the response was YES. [2023-08-30 12:59:41,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3113 conditions, 1308 events. 864/1308 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5782 event pairs, 368 based on Foata normal form. 0/1292 useless extension candidates. Maximal degree in co-relation 3101. Up to 573 conditions per place. [2023-08-30 12:59:41,120 INFO L137 encePairwiseOnDemand]: 206/213 looper letters, 47 selfloop transitions, 7 changer transitions 3/59 dead transitions. [2023-08-30 12:59:41,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 59 transitions, 278 flow [2023-08-30 12:59:41,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:59:41,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:59:41,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2023-08-30 12:59:41,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5164319248826291 [2023-08-30 12:59:41,123 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 440 transitions. [2023-08-30 12:59:41,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 440 transitions. [2023-08-30 12:59:41,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:41,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 440 transitions. [2023-08-30 12:59:41,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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 12:59:41,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 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 12:59:41,127 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 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 12:59:41,127 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 90 flow. Second operand 4 states and 440 transitions. [2023-08-30 12:59:41,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 59 transitions, 278 flow [2023-08-30 12:59:41,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 59 transitions, 273 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 12:59:41,129 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 111 flow [2023-08-30 12:59:41,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-08-30 12:59:41,130 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2023-08-30 12:59:41,130 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 111 flow [2023-08-30 12:59:41,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 12:59:41,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:41,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:59:41,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 12:59:41,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 12:59:41,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:41,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2079749329, now seen corresponding path program 1 times [2023-08-30 12:59:41,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:41,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267024785] [2023-08-30 12:59:41,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:41,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:41,238 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 12:59:41,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:41,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267024785] [2023-08-30 12:59:41,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267024785] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:41,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:41,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 12:59:41,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629151231] [2023-08-30 12:59:41,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:41,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 12:59:41,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:41,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 12:59:41,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 12:59:41,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 213 [2023-08-30 12:59:41,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 98.4) internal successors, (492), 5 states have internal predecessors, (492), 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 12:59:41,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:41,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 213 [2023-08-30 12:59:41,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:41,490 INFO L130 PetriNetUnfolder]: 844/1272 cut-off events. [2023-08-30 12:59:41,490 INFO L131 PetriNetUnfolder]: For 891/891 co-relation queries the response was YES. [2023-08-30 12:59:41,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3372 conditions, 1272 events. 844/1272 cut-off events. For 891/891 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5639 event pairs, 368 based on Foata normal form. 12/1280 useless extension candidates. Maximal degree in co-relation 3359. Up to 573 conditions per place. [2023-08-30 12:59:41,493 INFO L137 encePairwiseOnDemand]: 206/213 looper letters, 0 selfloop transitions, 0 changer transitions 53/53 dead transitions. [2023-08-30 12:59:41,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 53 transitions, 257 flow [2023-08-30 12:59:41,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 12:59:41,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 12:59:41,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 529 transitions. [2023-08-30 12:59:41,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49671361502347416 [2023-08-30 12:59:41,497 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 529 transitions. [2023-08-30 12:59:41,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 529 transitions. [2023-08-30 12:59:41,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:41,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 529 transitions. [2023-08-30 12:59:41,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 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 12:59:41,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 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 12:59:41,501 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 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 12:59:41,501 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 111 flow. Second operand 5 states and 529 transitions. [2023-08-30 12:59:41,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 53 transitions, 257 flow [2023-08-30 12:59:41,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 53 transitions, 233 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 12:59:41,504 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-30 12:59:41,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-08-30 12:59:41,505 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2023-08-30 12:59:41,505 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-30 12:59:41,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.4) internal successors, (492), 5 states have internal predecessors, (492), 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 12:59:41,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 12:59:41,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 12:59:41,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 12:59:41,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 12:59:41,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 12:59:41,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 12:59:41,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 12:59:41,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 12:59:41,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 12:59:41,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 12:59:41,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 12:59:41,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 12:59:41,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 12:59:41,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 12:59:41,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 12:59:41,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 12:59:41,511 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 12:59:41,516 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 12:59:41,516 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 12:59:41,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 12:59:41 BasicIcfg [2023-08-30 12:59:41,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 12:59:41,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 12:59:41,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 12:59:41,520 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 12:59:41,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:59:35" (3/4) ... [2023-08-30 12:59:41,522 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 12:59:41,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 12:59:41,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 12:59:41,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 12:59:41,529 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 12:59:41,530 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 12:59:41,530 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 12:59:41,530 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 12:59:41,559 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 12:59:41,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 12:59:41,560 INFO L158 Benchmark]: Toolchain (without parser) took 7188.86ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 69.5MB in the beginning and 69.1MB in the end (delta: 398.5kB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2023-08-30 12:59:41,560 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:59:41,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.47ms. Allocated memory is still 92.3MB. Free memory was 69.1MB in the beginning and 46.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-08-30 12:59:41,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.83ms. Allocated memory is still 92.3MB. Free memory was 46.0MB in the beginning and 43.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 12:59:41,561 INFO L158 Benchmark]: Boogie Preprocessor took 55.60ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 41.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:59:41,561 INFO L158 Benchmark]: RCFGBuilder took 654.90ms. Allocated memory is still 92.3MB. Free memory was 41.6MB in the beginning and 41.4MB in the end (delta: 271.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 12:59:41,562 INFO L158 Benchmark]: TraceAbstraction took 5835.55ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 40.4MB in the beginning and 72.2MB in the end (delta: -31.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-08-30 12:59:41,562 INFO L158 Benchmark]: Witness Printer took 40.32ms. Allocated memory is still 134.2MB. Free memory was 72.2MB in the beginning and 69.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 12:59:41,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 523.47ms. Allocated memory is still 92.3MB. Free memory was 69.1MB in the beginning and 46.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.83ms. Allocated memory is still 92.3MB. Free memory was 46.0MB in the beginning and 43.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.60ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 41.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 654.90ms. Allocated memory is still 92.3MB. Free memory was 41.6MB in the beginning and 41.4MB in the end (delta: 271.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5835.55ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 40.4MB in the beginning and 72.2MB in the end (delta: -31.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 40.32ms. Allocated memory is still 134.2MB. Free memory was 72.2MB in the beginning and 69.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 122 PlacesBefore, 38 PlacesAfterwards, 114 TransitionsBefore, 28 TransitionsAfterwards, 2560 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 96 TotalNumberOfCompositions, 8988 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4156, independent: 3876, independent conditional: 0, independent unconditional: 3876, dependent: 280, dependent conditional: 0, dependent unconditional: 280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1400, independent: 1349, independent conditional: 0, independent unconditional: 1349, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4156, independent: 2527, independent conditional: 0, independent unconditional: 2527, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 1400, unknown conditional: 0, unknown unconditional: 1400] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 151 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 258 IncrementalHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 6 mSDtfsCounter, 258 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 12:59:41,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE