./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_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 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa --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 13:01:33,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:01:33,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:01:33,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:01:33,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:01:33,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:01:33,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:01:33,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:01:33,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:01:33,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:01:33,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:01:33,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:01:33,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:01:33,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:01:33,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:01:33,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:01:33,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:01:33,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:01:33,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:01:33,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:01:33,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:01:33,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:01:33,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:01:33,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:01:33,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:01:33,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:01:33,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:01:33,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:01:33,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:01:33,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:01:33,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:01:33,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:01:33,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:01:33,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:01:33,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:01:33,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:01:33,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:01:33,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:01:33,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:01:33,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:01:33,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:01:33,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:01:33,255 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:01:33,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:01:33,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:01:33,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:01:33,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:01:33,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:01:33,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:01:33,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:01:33,258 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:01:33,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:01:33,258 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:01:33,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:01:33,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:01:33,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:01:33,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:01:33,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:01:33,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:01:33,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:01:33,260 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:01:33,260 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:01:33,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:01:33,260 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:01:33,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:01:33,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:01:33,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:01:33,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:01:33,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:01:33,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:01:33,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:01:33,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:01:33,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:01:33,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:01:33,262 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:01:33,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:01:33,262 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:01:33,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:01:33,262 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:01:33,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:01:33,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:01:33,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:01:33,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:01:33,505 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:01:33,506 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:01:33,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-08-30 13:01:34,511 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:01:34,775 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:01:34,776 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-08-30 13:01:34,788 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/700107a14/cfa9f33ec3444d0a83c4c84b454260e2/FLAG741603001 [2023-08-30 13:01:34,797 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/700107a14/cfa9f33ec3444d0a83c4c84b454260e2 [2023-08-30 13:01:34,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:01:34,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:01:34,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:01:34,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:01:34,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:01:34,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:01:34" (1/1) ... [2023-08-30 13:01:34,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da4a9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:34, skipping insertion in model container [2023-08-30 13:01:34,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:01:34" (1/1) ... [2023-08-30 13:01:34,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:01:34,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:01:34,987 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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2023-08-30 13:01:35,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:01:35,102 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:01:35,110 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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2023-08-30 13:01:35,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:01:35,207 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:01:35,209 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:01:35,214 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:01:35,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35 WrapperNode [2023-08-30 13:01:35,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:01:35,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:01:35,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:01:35,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:01:35,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (1/1) ... [2023-08-30 13:01:35,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (1/1) ... [2023-08-30 13:01:35,283 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 156 [2023-08-30 13:01:35,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:01:35,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:01:35,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:01:35,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:01:35,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (1/1) ... [2023-08-30 13:01:35,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (1/1) ... [2023-08-30 13:01:35,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (1/1) ... [2023-08-30 13:01:35,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (1/1) ... [2023-08-30 13:01:35,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (1/1) ... [2023-08-30 13:01:35,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (1/1) ... [2023-08-30 13:01:35,335 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (1/1) ... [2023-08-30 13:01:35,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (1/1) ... [2023-08-30 13:01:35,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:01:35,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:01:35,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:01:35,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:01:35,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (1/1) ... [2023-08-30 13:01:35,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:01:35,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:01:35,384 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 13:01:35,418 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 13:01:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:01:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:01:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:01:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:01:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:01:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:01:35,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:01:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:01:35,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:01:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:01:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:01:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:01:35,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:01:35,444 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 13:01:35,533 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:01:35,535 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:01:35,833 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:01:35,967 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:01:35,967 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:01:35,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:01:35 BoogieIcfgContainer [2023-08-30 13:01:35,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:01:35,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:01:35,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:01:35,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:01:35,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:01:34" (1/3) ... [2023-08-30 13:01:35,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4234822f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:01:35, skipping insertion in model container [2023-08-30 13:01:35,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:35" (2/3) ... [2023-08-30 13:01:35,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4234822f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:01:35, skipping insertion in model container [2023-08-30 13:01:35,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:01:35" (3/3) ... [2023-08-30 13:01:35,974 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-08-30 13:01:35,996 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:01:36,013 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:01:36,014 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 13:01:36,014 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:01:36,054 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:01:36,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 94 transitions, 198 flow [2023-08-30 13:01:36,123 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2023-08-30 13:01:36,123 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:01:36,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2023-08-30 13:01:36,127 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 94 transitions, 198 flow [2023-08-30 13:01:36,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 92 transitions, 190 flow [2023-08-30 13:01:36,134 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:01:36,150 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 92 transitions, 190 flow [2023-08-30 13:01:36,152 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 92 transitions, 190 flow [2023-08-30 13:01:36,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 190 flow [2023-08-30 13:01:36,175 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2023-08-30 13:01:36,176 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:01:36,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2023-08-30 13:01:36,178 INFO L119 LiptonReduction]: Number of co-enabled transitions 1452 [2023-08-30 13:01:39,134 INFO L134 LiptonReduction]: Checked pairs total: 4446 [2023-08-30 13:01:39,134 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-08-30 13:01:39,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:01:39,148 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;@262a26a2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:01:39,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-30 13:01:39,152 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-08-30 13:01:39,152 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:01:39,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:01:39,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:01:39,153 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:01:39,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:01:39,157 INFO L85 PathProgramCache]: Analyzing trace with hash 369074264, now seen corresponding path program 1 times [2023-08-30 13:01:39,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:01:39,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373302951] [2023-08-30 13:01:39,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:01:39,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:01:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:01:39,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:01:39,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:01:39,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373302951] [2023-08-30 13:01:39,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373302951] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:01:39,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:01:39,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:01:39,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814046706] [2023-08-30 13:01:39,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:01:39,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:01:39,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:01:39,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:01:39,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:01:39,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 171 [2023-08-30 13:01:39,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 13:01:39,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:01:39,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 171 [2023-08-30 13:01:39,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:01:39,571 INFO L130 PetriNetUnfolder]: 189/342 cut-off events. [2023-08-30 13:01:39,571 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 13:01:39,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 342 events. 189/342 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1251 event pairs, 113 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 688. Up to 204 conditions per place. [2023-08-30 13:01:39,576 INFO L137 encePairwiseOnDemand]: 164/171 looper letters, 29 selfloop transitions, 3 changer transitions 2/35 dead transitions. [2023-08-30 13:01:39,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 35 transitions, 147 flow [2023-08-30 13:01:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:01:39,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:01:39,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2023-08-30 13:01:39,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50682261208577 [2023-08-30 13:01:39,591 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 260 transitions. [2023-08-30 13:01:39,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 260 transitions. [2023-08-30 13:01:39,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:01:39,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 260 transitions. [2023-08-30 13:01:39,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 13:01:39,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 13:01:39,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 13:01:39,603 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 48 flow. Second operand 3 states and 260 transitions. [2023-08-30 13:01:39,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 35 transitions, 147 flow [2023-08-30 13:01:39,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:01:39,606 INFO L231 Difference]: Finished difference. Result has 29 places, 21 transitions, 63 flow [2023-08-30 13:01:39,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=29, PETRI_TRANSITIONS=21} [2023-08-30 13:01:39,610 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2023-08-30 13:01:39,610 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 63 flow [2023-08-30 13:01:39,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 13:01:39,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:01:39,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:01:39,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:01:39,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:01:39,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:01:39,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2060496547, now seen corresponding path program 1 times [2023-08-30 13:01:39,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:01:39,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464672084] [2023-08-30 13:01:39,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:01:39,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:01:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:01:39,819 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 13:01:39,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:01:39,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464672084] [2023-08-30 13:01:39,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464672084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:01:39,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:01:39,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:01:39,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045565375] [2023-08-30 13:01:39,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:01:39,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:01:39,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:01:39,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:01:39,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:01:39,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 171 [2023-08-30 13:01:39,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 63 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 13:01:39,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:01:39,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 171 [2023-08-30 13:01:39,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:01:39,926 INFO L130 PetriNetUnfolder]: 176/317 cut-off events. [2023-08-30 13:01:39,926 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-30 13:01:39,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 317 events. 176/317 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1151 event pairs, 113 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 722. Up to 204 conditions per place. [2023-08-30 13:01:39,928 INFO L137 encePairwiseOnDemand]: 166/171 looper letters, 27 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2023-08-30 13:01:39,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 141 flow [2023-08-30 13:01:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:01:39,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:01:39,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2023-08-30 13:01:39,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47953216374269003 [2023-08-30 13:01:39,930 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 328 transitions. [2023-08-30 13:01:39,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 328 transitions. [2023-08-30 13:01:39,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:01:39,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 328 transitions. [2023-08-30 13:01:39,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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 13:01:39,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 13:01:39,932 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 13:01:39,933 INFO L175 Difference]: Start difference. First operand has 29 places, 21 transitions, 63 flow. Second operand 4 states and 328 transitions. [2023-08-30 13:01:39,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 141 flow [2023-08-30 13:01:39,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:01:39,934 INFO L231 Difference]: Finished difference. Result has 29 places, 19 transitions, 58 flow [2023-08-30 13:01:39,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2023-08-30 13:01:39,935 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2023-08-30 13:01:39,935 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 58 flow [2023-08-30 13:01:39,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 13:01:39,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:01:39,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:01:39,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:01:39,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:01:39,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:01:39,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2060496548, now seen corresponding path program 1 times [2023-08-30 13:01:39,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:01:39,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123822287] [2023-08-30 13:01:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:01:39,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:01:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:01:40,006 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 13:01:40,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:01:40,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123822287] [2023-08-30 13:01:40,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123822287] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:01:40,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:01:40,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:01:40,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552936392] [2023-08-30 13:01:40,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:01:40,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:01:40,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:01:40,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:01:40,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:01:40,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 171 [2023-08-30 13:01:40,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 13:01:40,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:01:40,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 171 [2023-08-30 13:01:40,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:01:40,085 INFO L130 PetriNetUnfolder]: 170/303 cut-off events. [2023-08-30 13:01:40,085 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2023-08-30 13:01:40,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 303 events. 170/303 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1102 event pairs, 113 based on Foata normal form. 8/306 useless extension candidates. Maximal degree in co-relation 686. Up to 204 conditions per place. [2023-08-30 13:01:40,086 INFO L137 encePairwiseOnDemand]: 166/171 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2023-08-30 13:01:40,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 29 transitions, 132 flow [2023-08-30 13:01:40,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:01:40,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:01:40,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 326 transitions. [2023-08-30 13:01:40,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4766081871345029 [2023-08-30 13:01:40,087 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 326 transitions. [2023-08-30 13:01:40,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 326 transitions. [2023-08-30 13:01:40,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:01:40,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 326 transitions. [2023-08-30 13:01:40,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 13:01:40,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 13:01:40,090 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 13:01:40,090 INFO L175 Difference]: Start difference. First operand has 29 places, 19 transitions, 58 flow. Second operand 4 states and 326 transitions. [2023-08-30 13:01:40,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 29 transitions, 132 flow [2023-08-30 13:01:40,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 125 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:01:40,091 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2023-08-30 13:01:40,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2023-08-30 13:01:40,092 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-08-30 13:01:40,092 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2023-08-30 13:01:40,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 13:01:40,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-08-30 13:01:40,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-08-30 13:01:40,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-08-30 13:01:40,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-08-30 13:01:40,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-08-30 13:01:40,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-08-30 13:01:40,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-08-30 13:01:40,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-08-30 13:01:40,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-08-30 13:01:40,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-08-30 13:01:40,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:01:40,096 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-30 13:01:40,099 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:01:40,100 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:01:40,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:01:40 BasicIcfg [2023-08-30 13:01:40,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:01:40,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:01:40,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:01:40,102 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:01:40,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:01:35" (3/4) ... [2023-08-30 13:01:40,104 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:01:40,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:01:40,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:01:40,110 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-08-30 13:01:40,110 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 13:01:40,110 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 13:01:40,110 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:01:40,133 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:01:40,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:01:40,134 INFO L158 Benchmark]: Toolchain (without parser) took 5334.66ms. Allocated memory was 75.5MB in the beginning and 144.7MB in the end (delta: 69.2MB). Free memory was 52.4MB in the beginning and 70.7MB in the end (delta: -18.3MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2023-08-30 13:01:40,134 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 58.7MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:01:40,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.86ms. Allocated memory is still 75.5MB. Free memory was 52.2MB in the beginning and 46.6MB in the end (delta: 5.6MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-08-30 13:01:40,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.68ms. Allocated memory is still 75.5MB. Free memory was 46.6MB in the beginning and 43.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:01:40,135 INFO L158 Benchmark]: Boogie Preprocessor took 48.90ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 41.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:01:40,135 INFO L158 Benchmark]: RCFGBuilder took 629.51ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 41.5MB in the beginning and 59.0MB in the end (delta: -17.5MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-08-30 13:01:40,135 INFO L158 Benchmark]: TraceAbstraction took 4131.62ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 58.4MB in the beginning and 73.9MB in the end (delta: -15.5MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2023-08-30 13:01:40,136 INFO L158 Benchmark]: Witness Printer took 31.50ms. Allocated memory is still 144.7MB. Free memory was 73.9MB in the beginning and 70.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:01:40,137 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 58.7MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.86ms. Allocated memory is still 75.5MB. Free memory was 52.2MB in the beginning and 46.6MB in the end (delta: 5.6MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.68ms. Allocated memory is still 75.5MB. Free memory was 46.6MB in the beginning and 43.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.90ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 41.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 629.51ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 41.5MB in the beginning and 59.0MB in the end (delta: -17.5MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4131.62ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 58.4MB in the beginning and 73.9MB in the end (delta: -15.5MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Witness Printer took 31.50ms. Allocated memory is still 144.7MB. Free memory was 73.9MB in the beginning and 70.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 97 PlacesBefore, 28 PlacesAfterwards, 92 TransitionsBefore, 21 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 77 TotalNumberOfCompositions, 4446 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1858, independent: 1671, independent conditional: 0, independent unconditional: 1671, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 788, independent: 749, independent conditional: 0, independent unconditional: 749, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1858, independent: 922, independent conditional: 0, independent unconditional: 922, dependent: 148, dependent conditional: 0, dependent unconditional: 148, unknown: 788, unknown conditional: 0, unknown unconditional: 788] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: 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, 118 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: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 140 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 4 mSDtfsCounter, 140 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 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! [2023-08-30 13:01:40,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE