./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe015_power.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_power.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1568f4b0615eb98ed6bee584aeda19485d9df0ed08c84a8233a5817e939c5388 --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 13:03:46,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:03:46,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:03:46,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:03:46,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:03:46,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:03:46,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:03:46,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:03:46,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:03:46,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:03:46,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:03:46,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:03:46,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:03:46,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:03:46,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:03:46,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:03:46,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:03:46,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:03:46,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:03:46,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:03:46,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:03:46,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:03:46,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:03:46,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:03:46,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:03:46,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:03:46,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:03:46,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:03:46,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:03:46,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:03:46,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:03:46,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:03:46,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:03:46,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:03:46,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:03:46,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:03:46,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:03:46,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:03:46,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:03:46,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:03:46,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:03:46,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:03:46,303 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:03:46,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:03:46,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:03:46,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:03:46,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:03:46,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:03:46,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:03:46,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:03:46,307 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:03:46,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:03:46,307 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:03:46,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:03:46,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:03:46,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:03:46,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:03:46,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:03:46,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:03:46,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:03:46,309 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:03:46,309 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:03:46,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:03:46,310 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:03:46,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:03:46,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:03:46,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:03:46,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:03:46,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:03:46,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:03:46,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:03:46,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:03:46,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:03:46,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:03:46,312 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:03:46,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:03:46,312 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:03:46,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:03:46,313 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:03:46,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1568f4b0615eb98ed6bee584aeda19485d9df0ed08c84a8233a5817e939c5388 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:03:46,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:03:46,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:03:46,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:03:46,656 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:03:46,657 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:03:46,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_power.oepc.i [2023-08-30 13:03:47,816 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:03:48,058 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:03:48,059 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_power.oepc.i [2023-08-30 13:03:48,072 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d84cfc60/1bd4948443954a93b5d015b23bead61f/FLAG14f8a1446 [2023-08-30 13:03:48,087 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d84cfc60/1bd4948443954a93b5d015b23bead61f [2023-08-30 13:03:48,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:03:48,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:03:48,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:03:48,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:03:48,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:03:48,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579cb33c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48, skipping insertion in model container [2023-08-30 13:03:48,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:03:48,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:03:48,341 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/safe015_power.oepc.i[995,1008] [2023-08-30 13:03:48,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:03:48,598 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:03:48,609 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/safe015_power.oepc.i[995,1008] [2023-08-30 13:03:48,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:03:48,682 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:03:48,682 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:03:48,688 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:03:48,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48 WrapperNode [2023-08-30 13:03:48,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:03:48,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:03:48,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:03:48,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:03:48,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,735 INFO L138 Inliner]: procedures = 176, calls = 86, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 230 [2023-08-30 13:03:48,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:03:48,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:03:48,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:03:48,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:03:48,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,763 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:03:48,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:03:48,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:03:48,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:03:48,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (1/1) ... [2023-08-30 13:03:48,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:03:48,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:03:48,826 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 13:03:48,848 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 13:03:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:03:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:03:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:03:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:03:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:03:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:03:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:03:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:03:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:03:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:03:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:03:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:03:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:03:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:03:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:03:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:03:48,867 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 13:03:49,082 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:03:49,084 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:03:49,626 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:03:49,970 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:03:49,970 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:03:49,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:49 BoogieIcfgContainer [2023-08-30 13:03:49,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:03:49,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:03:49,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:03:49,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:03:49,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:03:48" (1/3) ... [2023-08-30 13:03:49,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e16dd4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:03:49, skipping insertion in model container [2023-08-30 13:03:49,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:48" (2/3) ... [2023-08-30 13:03:49,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e16dd4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:03:49, skipping insertion in model container [2023-08-30 13:03:49,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:49" (3/3) ... [2023-08-30 13:03:49,994 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_power.oepc.i [2023-08-30 13:03:50,002 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:03:50,010 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:03:50,011 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 13:03:50,011 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:03:50,079 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:03:50,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 129 transitions, 273 flow [2023-08-30 13:03:50,152 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2023-08-30 13:03:50,152 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:50,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-08-30 13:03:50,157 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 129 transitions, 273 flow [2023-08-30 13:03:50,160 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 126 transitions, 261 flow [2023-08-30 13:03:50,163 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:03:50,171 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 126 transitions, 261 flow [2023-08-30 13:03:50,173 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 126 transitions, 261 flow [2023-08-30 13:03:50,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 126 transitions, 261 flow [2023-08-30 13:03:50,197 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2023-08-30 13:03:50,197 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:50,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-08-30 13:03:50,200 INFO L119 LiptonReduction]: Number of co-enabled transitions 2256 [2023-08-30 13:03:58,340 INFO L134 LiptonReduction]: Checked pairs total: 8662 [2023-08-30 13:03:58,340 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-08-30 13:03:58,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:03:58,357 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;@1a10c1a0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:03:58,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 13:03:58,361 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 13:03:58,362 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:58,362 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:58,362 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:03:58,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:03:58,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:58,367 INFO L85 PathProgramCache]: Analyzing trace with hash 951887611, now seen corresponding path program 1 times [2023-08-30 13:03:58,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:58,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396146813] [2023-08-30 13:03:58,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:58,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:58,762 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 13:03:58,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:58,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396146813] [2023-08-30 13:03:58,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396146813] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:58,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:58,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:03:58,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656288746] [2023-08-30 13:03:58,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:58,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:03:58,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:58,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:03:58,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:03:58,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 236 [2023-08-30 13:03:58,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 13:03:58,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:58,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 236 [2023-08-30 13:03:58,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:59,401 INFO L130 PetriNetUnfolder]: 1409/2180 cut-off events. [2023-08-30 13:03:59,401 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-30 13:03:59,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4399 conditions, 2180 events. 1409/2180 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 10286 event pairs, 473 based on Foata normal form. 0/1808 useless extension candidates. Maximal degree in co-relation 4388. Up to 1568 conditions per place. [2023-08-30 13:03:59,416 INFO L137 encePairwiseOnDemand]: 225/236 looper letters, 40 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2023-08-30 13:03:59,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 45 transitions, 193 flow [2023-08-30 13:03:59,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:03:59,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:03:59,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-08-30 13:03:59,427 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.518361581920904 [2023-08-30 13:03:59,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-08-30 13:03:59,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-08-30 13:03:59,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:59,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-08-30 13:03:59,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 13:03:59,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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 13:03:59,439 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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 13:03:59,441 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 65 flow. Second operand 3 states and 367 transitions. [2023-08-30 13:03:59,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 45 transitions, 193 flow [2023-08-30 13:03:59,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 188 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:03:59,445 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 96 flow [2023-08-30 13:03:59,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-08-30 13:03:59,449 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2023-08-30 13:03:59,449 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 96 flow [2023-08-30 13:03:59,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 13:03:59,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:59,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:03:59,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:03:59,451 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:03:59,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:59,451 INFO L85 PathProgramCache]: Analyzing trace with hash 2044743972, now seen corresponding path program 1 times [2023-08-30 13:03:59,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:59,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694035592] [2023-08-30 13:03:59,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:59,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:59,592 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 13:03:59,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:59,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694035592] [2023-08-30 13:03:59,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694035592] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:59,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:59,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:03:59,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79303865] [2023-08-30 13:03:59,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:59,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:03:59,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:59,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:03:59,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:03:59,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 236 [2023-08-30 13:03:59,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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 13:03:59,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:59,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 236 [2023-08-30 13:03:59,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:04:00,073 INFO L130 PetriNetUnfolder]: 1132/1739 cut-off events. [2023-08-30 13:04:00,074 INFO L131 PetriNetUnfolder]: For 146/146 co-relation queries the response was YES. [2023-08-30 13:04:00,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4173 conditions, 1739 events. 1132/1739 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 7804 event pairs, 413 based on Foata normal form. 0/1576 useless extension candidates. Maximal degree in co-relation 4162. Up to 1126 conditions per place. [2023-08-30 13:04:00,082 INFO L137 encePairwiseOnDemand]: 229/236 looper letters, 37 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2023-08-30 13:04:00,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 200 flow [2023-08-30 13:04:00,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:04:00,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:04:00,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 464 transitions. [2023-08-30 13:04:00,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4915254237288136 [2023-08-30 13:04:00,087 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 464 transitions. [2023-08-30 13:04:00,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 464 transitions. [2023-08-30 13:04:00,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:04:00,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 464 transitions. [2023-08-30 13:04:00,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:04:00,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 13:04:00,094 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 13:04:00,094 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 96 flow. Second operand 4 states and 464 transitions. [2023-08-30 13:04:00,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 200 flow [2023-08-30 13:04:00,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:04:00,097 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 88 flow [2023-08-30 13:04:00,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2023-08-30 13:04:00,098 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2023-08-30 13:04:00,098 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 88 flow [2023-08-30 13:04:00,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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 13:04:00,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:04:00,099 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:04:00,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:04:00,100 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:04:00,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:04:00,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2044743973, now seen corresponding path program 1 times [2023-08-30 13:04:00,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:04:00,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537845081] [2023-08-30 13:04:00,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:04:00,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:04:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:04:00,250 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 13:04:00,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:04:00,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537845081] [2023-08-30 13:04:00,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537845081] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:04:00,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:04:00,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:04:00,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286144792] [2023-08-30 13:04:00,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:04:00,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:04:00,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:04:00,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:04:00,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:04:00,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 236 [2023-08-30 13:04:00,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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 13:04:00,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:04:00,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 236 [2023-08-30 13:04:00,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:04:00,681 INFO L130 PetriNetUnfolder]: 921/1409 cut-off events. [2023-08-30 13:04:00,681 INFO L131 PetriNetUnfolder]: For 473/473 co-relation queries the response was YES. [2023-08-30 13:04:00,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3346 conditions, 1409 events. 921/1409 cut-off events. For 473/473 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6076 event pairs, 378 based on Foata normal form. 0/1380 useless extension candidates. Maximal degree in co-relation 3334. Up to 589 conditions per place. [2023-08-30 13:04:00,688 INFO L137 encePairwiseOnDemand]: 229/236 looper letters, 47 selfloop transitions, 7 changer transitions 3/58 dead transitions. [2023-08-30 13:04:00,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 58 transitions, 276 flow [2023-08-30 13:04:00,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:04:00,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:04:00,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 480 transitions. [2023-08-30 13:04:00,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5084745762711864 [2023-08-30 13:04:00,691 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 480 transitions. [2023-08-30 13:04:00,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 480 transitions. [2023-08-30 13:04:00,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:04:00,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 480 transitions. [2023-08-30 13:04:00,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 13:04:00,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 13:04:00,695 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 13:04:00,695 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 88 flow. Second operand 4 states and 480 transitions. [2023-08-30 13:04:00,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 58 transitions, 276 flow [2023-08-30 13:04:00,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 58 transitions, 271 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:04:00,697 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 109 flow [2023-08-30 13:04:00,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-08-30 13:04:00,698 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2023-08-30 13:04:00,698 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 109 flow [2023-08-30 13:04:00,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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 13:04:00,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:04:00,699 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:04:00,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:04:00,699 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:04:00,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:04:00,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1782269681, now seen corresponding path program 1 times [2023-08-30 13:04:00,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:04:00,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354997812] [2023-08-30 13:04:00,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:04:00,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:04:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:04:00,861 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 13:04:00,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:04:00,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354997812] [2023-08-30 13:04:00,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354997812] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:04:00,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:04:00,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:04:00,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163221432] [2023-08-30 13:04:00,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:04:00,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:04:00,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:04:00,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:04:00,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:04:00,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 236 [2023-08-30 13:04:00,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 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 13:04:00,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:04:00,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 236 [2023-08-30 13:04:00,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:04:01,291 INFO L130 PetriNetUnfolder]: 895/1363 cut-off events. [2023-08-30 13:04:01,292 INFO L131 PetriNetUnfolder]: For 981/981 co-relation queries the response was YES. [2023-08-30 13:04:01,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3614 conditions, 1363 events. 895/1363 cut-off events. For 981/981 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5855 event pairs, 378 based on Foata normal form. 15/1364 useless extension candidates. Maximal degree in co-relation 3601. Up to 589 conditions per place. [2023-08-30 13:04:01,296 INFO L137 encePairwiseOnDemand]: 229/236 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2023-08-30 13:04:01,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 52 transitions, 255 flow [2023-08-30 13:04:01,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:04:01,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:04:01,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 579 transitions. [2023-08-30 13:04:01,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4906779661016949 [2023-08-30 13:04:01,302 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 579 transitions. [2023-08-30 13:04:01,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 579 transitions. [2023-08-30 13:04:01,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:04:01,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 579 transitions. [2023-08-30 13:04:01,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 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 13:04:01,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 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 13:04:01,307 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 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 13:04:01,307 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 109 flow. Second operand 5 states and 579 transitions. [2023-08-30 13:04:01,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 52 transitions, 255 flow [2023-08-30 13:04:01,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 52 transitions, 231 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 13:04:01,312 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-30 13:04:01,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-30 13:04:01,313 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2023-08-30 13:04:01,313 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-30 13:04:01,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 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 13:04:01,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 13:04:01,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 13:04:01,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 13:04:01,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 13:04:01,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 13:04:01,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 13:04:01,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 13:04:01,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 13:04:01,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 13:04:01,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 13:04:01,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 13:04:01,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 13:04:01,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 13:04:01,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 13:04:01,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 13:04:01,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:04:01,320 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 13:04:01,324 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:04:01,325 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:04:01,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:04:01 BasicIcfg [2023-08-30 13:04:01,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:04:01,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:04:01,332 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:04:01,332 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:04:01,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:49" (3/4) ... [2023-08-30 13:04:01,334 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:04:01,338 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:04:01,338 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:04:01,339 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:04:01,345 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2023-08-30 13:04:01,346 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-08-30 13:04:01,346 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 13:04:01,346 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:04:01,398 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:04:01,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:04:01,399 INFO L158 Benchmark]: Toolchain (without parser) took 13306.71ms. Allocated memory was 81.8MB in the beginning and 323.0MB in the end (delta: 241.2MB). Free memory was 54.7MB in the beginning and 199.7MB in the end (delta: -145.0MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. [2023-08-30 13:04:01,400 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory was 36.0MB in the beginning and 36.0MB in the end (delta: 47.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:04:01,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 593.38ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 47.8MB in the end (delta: 6.7MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2023-08-30 13:04:01,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.78ms. Allocated memory is still 81.8MB. Free memory was 47.8MB in the beginning and 44.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:04:01,400 INFO L158 Benchmark]: Boogie Preprocessor took 34.15ms. Allocated memory is still 81.8MB. Free memory was 44.9MB in the beginning and 42.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:04:01,401 INFO L158 Benchmark]: RCFGBuilder took 1202.03ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 42.3MB in the beginning and 37.4MB in the end (delta: 4.9MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-08-30 13:04:01,401 INFO L158 Benchmark]: TraceAbstraction took 11342.85ms. Allocated memory was 98.6MB in the beginning and 323.0MB in the end (delta: 224.4MB). Free memory was 70.9MB in the beginning and 203.9MB in the end (delta: -133.0MB). Peak memory consumption was 204.3MB. Max. memory is 16.1GB. [2023-08-30 13:04:01,401 INFO L158 Benchmark]: Witness Printer took 67.11ms. Allocated memory is still 323.0MB. Free memory was 203.9MB in the beginning and 199.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:04:01,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory was 36.0MB in the beginning and 36.0MB in the end (delta: 47.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 593.38ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 47.8MB in the end (delta: 6.7MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.78ms. Allocated memory is still 81.8MB. Free memory was 47.8MB in the beginning and 44.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.15ms. Allocated memory is still 81.8MB. Free memory was 44.9MB in the beginning and 42.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1202.03ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 42.3MB in the beginning and 37.4MB in the end (delta: 4.9MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11342.85ms. Allocated memory was 98.6MB in the beginning and 323.0MB in the end (delta: 224.4MB). Free memory was 70.9MB in the beginning and 203.9MB in the end (delta: -133.0MB). Peak memory consumption was 204.3MB. Max. memory is 16.1GB. * Witness Printer took 67.11ms. Allocated memory is still 323.0MB. Free memory was 203.9MB in the beginning and 199.7MB in the end (delta: 4.2MB). 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: 8.2s, 134 PlacesBefore, 37 PlacesAfterwards, 126 TransitionsBefore, 28 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 8 FixpointIterations, 56 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 107 TotalNumberOfCompositions, 8662 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2630, independent: 2321, independent conditional: 0, independent unconditional: 2321, dependent: 309, dependent conditional: 0, dependent unconditional: 309, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1232, independent: 1182, independent conditional: 0, independent unconditional: 1182, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2630, independent: 1139, independent conditional: 0, independent unconditional: 1139, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 1232, unknown conditional: 0, unknown unconditional: 1232] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 160 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 263 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 7 mSDtfsCounter, 263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 13:04:01,435 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