./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.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 15ac4e1d4eb7f123e42f66ffca6b608a72882a0faec253c9cc2d868c4bb280c3 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:23:45,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:23:45,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:23:45,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:23:45,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:23:45,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:23:45,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:23:45,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:23:45,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:23:45,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:23:45,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:23:45,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:23:45,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:23:45,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:23:45,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:23:45,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:23:45,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:23:45,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:23:45,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:23:45,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:23:45,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:23:45,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:23:45,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:23:45,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:23:45,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:23:45,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:23:45,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:23:45,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:23:45,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:23:45,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:23:45,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:23:45,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:23:45,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:23:45,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:23:45,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:23:45,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:23:45,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:23:45,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:23:45,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:23:45,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:23:45,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:23:45,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:23:45,447 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:23:45,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:23:45,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:23:45,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:23:45,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:23:45,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:23:45,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:23:45,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:23:45,450 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:23:45,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:23:45,451 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:23:45,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:23:45,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:23:45,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:23:45,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:23:45,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:23:45,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:23:45,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:23:45,452 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:23:45,452 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:23:45,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:23:45,453 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:23:45,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:23:45,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:23:45,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:23:45,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:23:45,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:23:45,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:23:45,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:23:45,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:23:45,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:23:45,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:23:45,455 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:23:45,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:23:45,455 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:23:45,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:23:45,456 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:23:45,456 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15ac4e1d4eb7f123e42f66ffca6b608a72882a0faec253c9cc2d868c4bb280c3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:23:45,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:23:45,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:23:45,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:23:45,798 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:23:45,799 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:23:45,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i [2023-09-01 05:23:46,937 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:23:47,216 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:23:47,220 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i [2023-09-01 05:23:47,243 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f708e92e/2e39f85124274e3b8ae1b1062608417e/FLAG8d81a8cd3 [2023-09-01 05:23:47,265 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f708e92e/2e39f85124274e3b8ae1b1062608417e [2023-09-01 05:23:47,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:23:47,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:23:47,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:23:47,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:23:47,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:23:47,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bdee016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47, skipping insertion in model container [2023-09-01 05:23:47,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:23:47,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:23:47,438 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/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i[1026,1039] [2023-09-01 05:23:47,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:23:47,635 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:23:47,648 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/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i[1026,1039] [2023-09-01 05:23:47,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:23:47,772 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:23:47,773 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:23:47,778 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:23:47,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47 WrapperNode [2023-09-01 05:23:47,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:23:47,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:23:47,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:23:47,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:23:47,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,847 INFO L138 Inliner]: procedures = 175, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 121 [2023-09-01 05:23:47,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:23:47,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:23:47,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:23:47,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:23:47,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,894 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:23:47,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:23:47,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:23:47,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:23:47,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (1/1) ... [2023-09-01 05:23:47,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:23:47,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:23:47,932 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) [2023-09-01 05:23:47,934 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 [2023-09-01 05:23:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 05:23:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:23:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:23:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:23:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:23:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:23:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:23:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:23:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:23:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:23:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:23:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:23:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:23:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:23:47,963 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:23:48,111 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:23:48,113 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:23:48,466 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:23:48,686 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:23:48,686 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:23:48,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:23:48 BoogieIcfgContainer [2023-09-01 05:23:48,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:23:48,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:23:48,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:23:48,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:23:48,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:23:47" (1/3) ... [2023-09-01 05:23:48,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588bc910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:23:48, skipping insertion in model container [2023-09-01 05:23:48,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:47" (2/3) ... [2023-09-01 05:23:48,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588bc910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:23:48, skipping insertion in model container [2023-09-01 05:23:48,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:23:48" (3/3) ... [2023-09-01 05:23:48,697 INFO L112 eAbstractionObserver]: Analyzing ICFG safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i [2023-09-01 05:23:48,705 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:23:48,714 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:23:48,714 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 05:23:48,715 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:23:48,779 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:23:48,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 106 transitions, 222 flow [2023-09-01 05:23:48,871 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2023-09-01 05:23:48,872 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:23:48,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-09-01 05:23:48,878 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 106 transitions, 222 flow [2023-09-01 05:23:48,883 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 104 transitions, 214 flow [2023-09-01 05:23:48,886 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:23:48,904 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 104 transitions, 214 flow [2023-09-01 05:23:48,909 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 104 transitions, 214 flow [2023-09-01 05:23:48,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 104 transitions, 214 flow [2023-09-01 05:23:48,954 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2023-09-01 05:23:48,955 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:23:48,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-09-01 05:23:48,957 INFO L119 LiptonReduction]: Number of co-enabled transitions 1140 [2023-09-01 05:23:54,843 INFO L134 LiptonReduction]: Checked pairs total: 3361 [2023-09-01 05:23:54,844 INFO L136 LiptonReduction]: Total number of compositions: 92 [2023-09-01 05:23:54,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:23:54,859 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;@600daf2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:23:54,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-09-01 05:23:54,865 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:23:54,865 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:23:54,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:23:54,865 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:23:54,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:23:54,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:23:54,870 INFO L85 PathProgramCache]: Analyzing trace with hash 544915304, now seen corresponding path program 1 times [2023-09-01 05:23:54,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:23:54,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962845765] [2023-09-01 05:23:54,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:23:54,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:23:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:23:55,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:23:55,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:23:55,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962845765] [2023-09-01 05:23:55,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962845765] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:23:55,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:23:55,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:23:55,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270658501] [2023-09-01 05:23:55,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:23:55,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:23:55,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:23:55,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:23:55,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:23:55,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 198 [2023-09-01 05:23:55,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2023-09-01 05:23:55,166 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:23:55,166 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 198 [2023-09-01 05:23:55,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:23:55,244 INFO L130 PetriNetUnfolder]: 111/210 cut-off events. [2023-09-01 05:23:55,244 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 05:23:55,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 210 events. 111/210 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 835 event pairs, 111 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 414. Up to 200 conditions per place. [2023-09-01 05:23:55,247 INFO L137 encePairwiseOnDemand]: 195/198 looper letters, 13 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-09-01 05:23:55,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 16 transitions, 66 flow [2023-09-01 05:23:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:23:55,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:23:55,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2023-09-01 05:23:55,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2023-09-01 05:23:55,260 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2023-09-01 05:23:55,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2023-09-01 05:23:55,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:23:55,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2023-09-01 05:23:55,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2023-09-01 05:23:55,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-09-01 05:23:55,272 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-09-01 05:23:55,274 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 42 flow. Second operand 3 states and 286 transitions. [2023-09-01 05:23:55,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 16 transitions, 66 flow [2023-09-01 05:23:55,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 16 transitions, 64 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:23:55,277 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 38 flow [2023-09-01 05:23:55,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=38, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2023-09-01 05:23:55,281 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2023-09-01 05:23:55,281 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 38 flow [2023-09-01 05:23:55,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2023-09-01 05:23:55,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:23:55,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:23:55,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:23:55,283 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:23:55,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:23:55,283 INFO L85 PathProgramCache]: Analyzing trace with hash 544915305, now seen corresponding path program 1 times [2023-09-01 05:23:55,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:23:55,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753588163] [2023-09-01 05:23:55,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:23:55,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:23:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:23:55,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:23:55,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:23:55,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753588163] [2023-09-01 05:23:55,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753588163] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:23:55,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:23:55,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:23:55,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419466568] [2023-09-01 05:23:55,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:23:55,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:23:55,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:23:55,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:23:55,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:23:55,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 198 [2023-09-01 05:23:55,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2023-09-01 05:23:55,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:23:55,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 198 [2023-09-01 05:23:55,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:23:55,460 INFO L130 PetriNetUnfolder]: 67/136 cut-off events. [2023-09-01 05:23:55,460 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:23:55,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 136 events. 67/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 438 event pairs, 25 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 272. Up to 77 conditions per place. [2023-09-01 05:23:55,464 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 19 selfloop transitions, 3 changer transitions 2/26 dead transitions. [2023-09-01 05:23:55,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 26 transitions, 108 flow [2023-09-01 05:23:55,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:23:55,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:23:55,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-09-01 05:23:55,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4983164983164983 [2023-09-01 05:23:55,470 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-09-01 05:23:55,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-09-01 05:23:55,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:23:55,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-09-01 05:23:55,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2023-09-01 05:23:55,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-09-01 05:23:55,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-09-01 05:23:55,476 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 38 flow. Second operand 3 states and 296 transitions. [2023-09-01 05:23:55,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 26 transitions, 108 flow [2023-09-01 05:23:55,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 26 transitions, 107 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:23:55,478 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 50 flow [2023-09-01 05:23:55,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2023-09-01 05:23:55,479 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2023-09-01 05:23:55,479 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 50 flow [2023-09-01 05:23:55,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2023-09-01 05:23:55,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:23:55,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:23:55,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:23:55,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:23:55,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:23:55,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1995834693, now seen corresponding path program 1 times [2023-09-01 05:23:55,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:23:55,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55620833] [2023-09-01 05:23:55,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:23:55,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:23:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:23:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:23:55,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:23:55,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55620833] [2023-09-01 05:23:55,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55620833] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:23:55,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:23:55,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:23:55,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350005441] [2023-09-01 05:23:55,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:23:55,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:23:55,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:23:55,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:23:55,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:23:55,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 198 [2023-09-01 05:23:55,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 50 flow. Second operand has 4 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) [2023-09-01 05:23:55,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:23:55,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 198 [2023-09-01 05:23:55,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:23:55,720 INFO L130 PetriNetUnfolder]: 54/111 cut-off events. [2023-09-01 05:23:55,720 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-09-01 05:23:55,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 111 events. 54/111 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 350 event pairs, 25 based on Foata normal form. 8/116 useless extension candidates. Maximal degree in co-relation 266. Up to 54 conditions per place. [2023-09-01 05:23:55,721 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2023-09-01 05:23:55,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 22 transitions, 100 flow [2023-09-01 05:23:55,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:23:55,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:23:55,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 382 transitions. [2023-09-01 05:23:55,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4823232323232323 [2023-09-01 05:23:55,724 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 382 transitions. [2023-09-01 05:23:55,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 382 transitions. [2023-09-01 05:23:55,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:23:55,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 382 transitions. [2023-09-01 05:23:55,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 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) [2023-09-01 05:23:55,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 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) [2023-09-01 05:23:55,727 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 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) [2023-09-01 05:23:55,728 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 50 flow. Second operand 4 states and 382 transitions. [2023-09-01 05:23:55,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 22 transitions, 100 flow [2023-09-01 05:23:55,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 94 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:23:55,729 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-09-01 05:23:55,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-09-01 05:23:55,730 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -1 predicate places. [2023-09-01 05:23:55,730 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-09-01 05:23:55,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2023-09-01 05:23:55,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-09-01 05:23:55,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-09-01 05:23:55,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-09-01 05:23:55,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-09-01 05:23:55,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-09-01 05:23:55,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-09-01 05:23:55,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-09-01 05:23:55,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-09-01 05:23:55,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-09-01 05:23:55,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-09-01 05:23:55,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:23:55,739 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-09-01 05:23:55,745 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:23:55,745 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:23:55,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:23:55 BasicIcfg [2023-09-01 05:23:55,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:23:55,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:23:55,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:23:55,751 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:23:55,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:23:48" (3/4) ... [2023-09-01 05:23:55,753 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:23:55,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:23:55,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:23:55,764 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2023-09-01 05:23:55,764 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-09-01 05:23:55,767 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:23:55,767 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:23:55,809 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:23:55,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:23:55,810 INFO L158 Benchmark]: Toolchain (without parser) took 8539.50ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 49.0MB in the beginning and 61.4MB in the end (delta: -12.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-09-01 05:23:55,810 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:23:55,811 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.70ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 48.9MB in the beginning and 59.7MB in the end (delta: -10.8MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2023-09-01 05:23:55,811 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.64ms. Allocated memory is still 88.1MB. Free memory was 59.7MB in the beginning and 57.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:23:55,811 INFO L158 Benchmark]: Boogie Preprocessor took 56.72ms. Allocated memory is still 88.1MB. Free memory was 57.3MB in the beginning and 55.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:23:55,812 INFO L158 Benchmark]: RCFGBuilder took 782.37ms. Allocated memory is still 88.1MB. Free memory was 55.5MB in the beginning and 56.7MB in the end (delta: -1.2MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2023-09-01 05:23:55,812 INFO L158 Benchmark]: TraceAbstraction took 7059.15ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 55.8MB in the beginning and 64.5MB in the end (delta: -8.8MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2023-09-01 05:23:55,812 INFO L158 Benchmark]: Witness Printer took 59.05ms. Allocated memory is still 107.0MB. Free memory was 64.5MB in the beginning and 61.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:23:55,814 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 73.4MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.70ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 48.9MB in the beginning and 59.7MB in the end (delta: -10.8MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.64ms. Allocated memory is still 88.1MB. Free memory was 59.7MB in the beginning and 57.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.72ms. Allocated memory is still 88.1MB. Free memory was 57.3MB in the beginning and 55.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 782.37ms. Allocated memory is still 88.1MB. Free memory was 55.5MB in the beginning and 56.7MB in the end (delta: -1.2MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7059.15ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 55.8MB in the beginning and 64.5MB in the end (delta: -8.8MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. * Witness Printer took 59.05ms. Allocated memory is still 107.0MB. Free memory was 64.5MB in the beginning and 61.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 109 PlacesBefore, 25 PlacesAfterwards, 104 TransitionsBefore, 18 TransitionsAfterwards, 1140 CoEnabledTransitionPairs, 7 FixpointIterations, 52 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 92 TotalNumberOfCompositions, 3361 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1852, independent: 1673, independent conditional: 0, independent unconditional: 1673, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 639, independent: 596, independent conditional: 0, independent unconditional: 596, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1852, independent: 1077, independent conditional: 0, independent unconditional: 1077, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 639, unknown conditional: 0, unknown unconditional: 639] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: 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 5 procedures, 126 locations, 10 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: 6.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 6 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=2, InterpolantAutomatonStates: 10, 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, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:23:55,830 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