./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix004.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/mix004.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 81dfcecae183e47a2274a923e55daf761c46d6146ab2c58970ae115599afe231 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:37:06,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:37:06,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:37:06,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:37:06,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:37:06,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:37:06,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:37:06,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:37:06,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:37:06,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:37:06,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:37:06,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:37:06,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:37:06,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:37:06,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:37:06,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:37:06,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:37:06,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:37:06,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:37:06,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:37:06,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:37:06,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:37:06,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:37:06,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:37:06,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:37:06,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:37:06,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:37:06,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:37:06,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:37:06,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:37:06,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:37:06,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:37:06,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:37:06,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:37:06,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:37:06,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:37:06,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:37:06,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:37:06,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:37:06,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:37:06,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:37:06,223 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:37:06,258 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:37:06,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:37:06,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:37:06,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:37:06,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:37:06,261 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:37:06,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:37:06,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:37:06,262 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:37:06,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:37:06,263 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:37:06,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:37:06,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:37:06,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:37:06,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:37:06,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:37:06,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:37:06,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:37:06,264 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:37:06,264 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:37:06,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:37:06,265 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:37:06,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:37:06,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:37:06,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:37:06,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:37:06,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:37:06,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:37:06,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:37:06,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:37:06,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:37:06,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:37:06,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:37:06,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:37:06,267 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:37:06,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:37:06,268 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:37:06,268 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81dfcecae183e47a2274a923e55daf761c46d6146ab2c58970ae115599afe231 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:37:06,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:37:06,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:37:06,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:37:06,589 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:37:06,589 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:37:06,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix004.oepc.i [2023-08-30 08:37:07,828 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:37:08,136 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:37:08,137 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix004.oepc.i [2023-08-30 08:37:08,149 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eeb76363/a5ad71daac9b4b37a1f146a1e5b38aa0/FLAGe7a3e48b6 [2023-08-30 08:37:08,166 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eeb76363/a5ad71daac9b4b37a1f146a1e5b38aa0 [2023-08-30 08:37:08,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:37:08,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:37:08,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:37:08,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:37:08,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:37:08,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af63f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08, skipping insertion in model container [2023-08-30 08:37:08,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:37:08,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:37:08,341 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/mix004.oepc.i[945,958] [2023-08-30 08:37:08,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:37:08,565 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:37:08,577 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/mix004.oepc.i[945,958] [2023-08-30 08:37:08,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:37:08,694 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:37:08,694 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:37:08,700 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:37:08,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08 WrapperNode [2023-08-30 08:37:08,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:37:08,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:37:08,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:37:08,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:37:08,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,744 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 149 [2023-08-30 08:37:08,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:37:08,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:37:08,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:37:08,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:37:08,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,773 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:37:08,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:37:08,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:37:08,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:37:08,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:37:08,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:37:08,821 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 08:37:08,831 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 08:37:08,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:37:08,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:37:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:37:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:37:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:37:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:37:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:37:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:37:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:37:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:37:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:37:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 08:37:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 08:37:08,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:37:08,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:37:08,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:37:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:37:08,868 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 08:37:09,037 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:37:09,039 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:37:09,484 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:37:09,571 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:37:09,571 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:37:09,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:37:09 BoogieIcfgContainer [2023-08-30 08:37:09,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:37:09,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:37:09,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:37:09,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:37:09,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:37:08" (1/3) ... [2023-08-30 08:37:09,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35035e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:37:09, skipping insertion in model container [2023-08-30 08:37:09,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08" (2/3) ... [2023-08-30 08:37:09,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35035e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:37:09, skipping insertion in model container [2023-08-30 08:37:09,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:37:09" (3/3) ... [2023-08-30 08:37:09,590 INFO L112 eAbstractionObserver]: Analyzing ICFG mix004.oepc.i [2023-08-30 08:37:09,597 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:37:09,605 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:37:09,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 08:37:09,606 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:37:09,662 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:37:09,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 140 transitions, 300 flow [2023-08-30 08:37:09,754 INFO L130 PetriNetUnfolder]: 2/136 cut-off events. [2023-08-30 08:37:09,755 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:37:09,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 136 events. 2/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-30 08:37:09,761 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 140 transitions, 300 flow [2023-08-30 08:37:09,771 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 136 transitions, 284 flow [2023-08-30 08:37:09,776 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:37:09,795 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 136 transitions, 284 flow [2023-08-30 08:37:09,801 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 136 transitions, 284 flow [2023-08-30 08:37:09,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 284 flow [2023-08-30 08:37:09,851 INFO L130 PetriNetUnfolder]: 2/136 cut-off events. [2023-08-30 08:37:09,851 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:37:09,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 136 events. 2/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-30 08:37:09,861 INFO L119 LiptonReduction]: Number of co-enabled transitions 4132 [2023-08-30 08:37:13,612 INFO L134 LiptonReduction]: Checked pairs total: 15668 [2023-08-30 08:37:13,613 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-08-30 08:37:13,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:37:13,628 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;@9396de9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:37:13,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 08:37:13,632 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 08:37:13,632 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:37:13,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:37:13,633 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:37:13,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:37:13,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:37:13,637 INFO L85 PathProgramCache]: Analyzing trace with hash 349093667, now seen corresponding path program 1 times [2023-08-30 08:37:13,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:37:13,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213178040] [2023-08-30 08:37:13,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:37:13,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:37:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:37:13,947 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 08:37:13,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:37:13,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213178040] [2023-08-30 08:37:13,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213178040] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:37:13,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:37:13,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:37:13,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411423126] [2023-08-30 08:37:13,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:37:13,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:37:13,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:37:13,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:37:13,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:37:13,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 245 [2023-08-30 08:37:14,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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 08:37:14,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:37:14,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 245 [2023-08-30 08:37:14,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:37:15,589 INFO L130 PetriNetUnfolder]: 9717/13531 cut-off events. [2023-08-30 08:37:15,590 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2023-08-30 08:37:15,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27305 conditions, 13531 events. 9717/13531 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 76220 event pairs, 2763 based on Foata normal form. 0/10151 useless extension candidates. Maximal degree in co-relation 27293. Up to 11755 conditions per place. [2023-08-30 08:37:15,680 INFO L137 encePairwiseOnDemand]: 232/245 looper letters, 49 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-08-30 08:37:15,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 59 transitions, 247 flow [2023-08-30 08:37:15,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:37:15,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:37:15,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2023-08-30 08:37:15,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.545578231292517 [2023-08-30 08:37:15,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2023-08-30 08:37:15,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2023-08-30 08:37:15,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:37:15,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2023-08-30 08:37:15,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 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 08:37:15,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 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 08:37:15,727 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 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 08:37:15,729 INFO L175 Difference]: Start difference. First operand has 50 places, 37 transitions, 86 flow. Second operand 3 states and 401 transitions. [2023-08-30 08:37:15,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 59 transitions, 247 flow [2023-08-30 08:37:15,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 59 transitions, 240 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:37:15,737 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 129 flow [2023-08-30 08:37:15,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-08-30 08:37:15,741 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-08-30 08:37:15,742 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 129 flow [2023-08-30 08:37:15,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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 08:37:15,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:37:15,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:37:15,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:37:15,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:37:15,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:37:15,744 INFO L85 PathProgramCache]: Analyzing trace with hash -90135895, now seen corresponding path program 1 times [2023-08-30 08:37:15,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:37:15,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736942934] [2023-08-30 08:37:15,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:37:15,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:37:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:37:15,868 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 08:37:15,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:37:15,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736942934] [2023-08-30 08:37:15,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736942934] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:37:15,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:37:15,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:37:15,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276049121] [2023-08-30 08:37:15,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:37:15,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:37:15,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:37:15,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:37:15,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:37:15,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 245 [2023-08-30 08:37:15,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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 08:37:15,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:37:15,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 245 [2023-08-30 08:37:15,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:37:17,065 INFO L130 PetriNetUnfolder]: 6207/8629 cut-off events. [2023-08-30 08:37:17,066 INFO L131 PetriNetUnfolder]: For 487/487 co-relation queries the response was YES. [2023-08-30 08:37:17,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20936 conditions, 8629 events. 6207/8629 cut-off events. For 487/487 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 46458 event pairs, 1715 based on Foata normal form. 0/7425 useless extension candidates. Maximal degree in co-relation 20925. Up to 6852 conditions per place. [2023-08-30 08:37:17,130 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 45 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2023-08-30 08:37:17,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 55 transitions, 255 flow [2023-08-30 08:37:17,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:37:17,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:37:17,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 506 transitions. [2023-08-30 08:37:17,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5163265306122449 [2023-08-30 08:37:17,135 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 506 transitions. [2023-08-30 08:37:17,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 506 transitions. [2023-08-30 08:37:17,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:37:17,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 506 transitions. [2023-08-30 08:37:17,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 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 08:37:17,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 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 08:37:17,140 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 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 08:37:17,141 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 129 flow. Second operand 4 states and 506 transitions. [2023-08-30 08:37:17,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 55 transitions, 255 flow [2023-08-30 08:37:17,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 55 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:37:17,143 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 118 flow [2023-08-30 08:37:17,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2023-08-30 08:37:17,144 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-08-30 08:37:17,144 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 118 flow [2023-08-30 08:37:17,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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 08:37:17,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:37:17,145 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:37:17,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:37:17,145 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:37:17,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:37:17,148 INFO L85 PathProgramCache]: Analyzing trace with hash -90135894, now seen corresponding path program 1 times [2023-08-30 08:37:17,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:37:17,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533352477] [2023-08-30 08:37:17,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:37:17,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:37:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:37:17,275 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 08:37:17,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:37:17,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533352477] [2023-08-30 08:37:17,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533352477] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:37:17,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:37:17,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:37:17,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776516340] [2023-08-30 08:37:17,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:37:17,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:37:17,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:37:17,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:37:17,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:37:17,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 245 [2023-08-30 08:37:17,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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 08:37:17,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:37:17,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 245 [2023-08-30 08:37:17,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:37:18,040 INFO L130 PetriNetUnfolder]: 4260/5960 cut-off events. [2023-08-30 08:37:18,040 INFO L131 PetriNetUnfolder]: For 1582/1582 co-relation queries the response was YES. [2023-08-30 08:37:18,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14265 conditions, 5960 events. 4260/5960 cut-off events. For 1582/1582 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 31065 event pairs, 1261 based on Foata normal form. 0/5675 useless extension candidates. Maximal degree in co-relation 14253. Up to 2277 conditions per place. [2023-08-30 08:37:18,074 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 61 selfloop transitions, 9 changer transitions 0/75 dead transitions. [2023-08-30 08:37:18,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 75 transitions, 352 flow [2023-08-30 08:37:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:37:18,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:37:18,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 526 transitions. [2023-08-30 08:37:18,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.536734693877551 [2023-08-30 08:37:18,077 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 526 transitions. [2023-08-30 08:37:18,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 526 transitions. [2023-08-30 08:37:18,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:37:18,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 526 transitions. [2023-08-30 08:37:18,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 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 08:37:18,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 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 08:37:18,082 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 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 08:37:18,082 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 118 flow. Second operand 4 states and 526 transitions. [2023-08-30 08:37:18,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 75 transitions, 352 flow [2023-08-30 08:37:18,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 75 transitions, 346 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:37:18,085 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 170 flow [2023-08-30 08:37:18,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-08-30 08:37:18,086 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-08-30 08:37:18,086 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 170 flow [2023-08-30 08:37:18,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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 08:37:18,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:37:18,087 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:37:18,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:37:18,087 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:37:18,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:37:18,088 INFO L85 PathProgramCache]: Analyzing trace with hash 112045292, now seen corresponding path program 1 times [2023-08-30 08:37:18,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:37:18,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360378018] [2023-08-30 08:37:18,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:37:18,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:37:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:37:18,190 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 08:37:18,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:37:18,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360378018] [2023-08-30 08:37:18,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360378018] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:37:18,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:37:18,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:37:18,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056346539] [2023-08-30 08:37:18,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:37:18,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:37:18,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:37:18,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:37:18,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:37:18,202 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 245 [2023-08-30 08:37:18,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 08:37:18,204 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:37:18,204 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 245 [2023-08-30 08:37:18,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:37:19,038 INFO L130 PetriNetUnfolder]: 3939/5453 cut-off events. [2023-08-30 08:37:19,038 INFO L131 PetriNetUnfolder]: For 3285/3285 co-relation queries the response was YES. [2023-08-30 08:37:19,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14878 conditions, 5453 events. 3939/5453 cut-off events. For 3285/3285 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 28125 event pairs, 1217 based on Foata normal form. 0/5378 useless extension candidates. Maximal degree in co-relation 14865. Up to 2277 conditions per place. [2023-08-30 08:37:19,067 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 71 selfloop transitions, 13 changer transitions 4/93 dead transitions. [2023-08-30 08:37:19,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 93 transitions, 478 flow [2023-08-30 08:37:19,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:37:19,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:37:19,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 657 transitions. [2023-08-30 08:37:19,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5363265306122449 [2023-08-30 08:37:19,070 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 657 transitions. [2023-08-30 08:37:19,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 657 transitions. [2023-08-30 08:37:19,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:37:19,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 657 transitions. [2023-08-30 08:37:19,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.4) internal successors, (657), 5 states have internal predecessors, (657), 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 08:37:19,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 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 08:37:19,075 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 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 08:37:19,075 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 170 flow. Second operand 5 states and 657 transitions. [2023-08-30 08:37:19,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 93 transitions, 478 flow [2023-08-30 08:37:19,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 93 transitions, 460 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 08:37:19,082 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 194 flow [2023-08-30 08:37:19,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2023-08-30 08:37:19,083 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2023-08-30 08:37:19,083 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 194 flow [2023-08-30 08:37:19,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 08:37:19,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:37:19,084 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:37:19,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:37:19,084 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:37:19,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:37:19,085 INFO L85 PathProgramCache]: Analyzing trace with hash 261458676, now seen corresponding path program 1 times [2023-08-30 08:37:19,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:37:19,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148004411] [2023-08-30 08:37:19,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:37:19,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:37:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:37:19,231 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 08:37:19,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:37:19,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148004411] [2023-08-30 08:37:19,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148004411] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:37:19,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:37:19,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:37:19,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713358710] [2023-08-30 08:37:19,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:37:19,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:37:19,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:37:19,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:37:19,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:37:19,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 245 [2023-08-30 08:37:19,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 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 08:37:19,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:37:19,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 245 [2023-08-30 08:37:19,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:37:19,976 INFO L130 PetriNetUnfolder]: 3912/5406 cut-off events. [2023-08-30 08:37:19,976 INFO L131 PetriNetUnfolder]: For 3991/3991 co-relation queries the response was YES. [2023-08-30 08:37:19,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15109 conditions, 5406 events. 3912/5406 cut-off events. For 3991/3991 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 27868 event pairs, 1217 based on Foata normal form. 16/5363 useless extension candidates. Maximal degree in co-relation 15095. Up to 2277 conditions per place. [2023-08-30 08:37:20,001 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2023-08-30 08:37:20,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 85 transitions, 430 flow [2023-08-30 08:37:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:37:20,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:37:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 762 transitions. [2023-08-30 08:37:20,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5183673469387755 [2023-08-30 08:37:20,005 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 762 transitions. [2023-08-30 08:37:20,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 762 transitions. [2023-08-30 08:37:20,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:37:20,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 762 transitions. [2023-08-30 08:37:20,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 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 08:37:20,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 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 08:37:20,011 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 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 08:37:20,012 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 194 flow. Second operand 6 states and 762 transitions. [2023-08-30 08:37:20,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 85 transitions, 430 flow [2023-08-30 08:37:20,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 85 transitions, 375 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 08:37:20,105 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-08-30 08:37:20,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-08-30 08:37:20,106 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-08-30 08:37:20,106 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-08-30 08:37:20,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 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 08:37:20,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 08:37:20,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 08:37:20,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 08:37:20,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 08:37:20,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 08:37:20,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 08:37:20,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 08:37:20,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 08:37:20,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 08:37:20,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 08:37:20,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 08:37:20,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 08:37:20,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 08:37:20,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 08:37:20,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 08:37:20,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 08:37:20,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 08:37:20,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 08:37:20,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 08:37:20,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 08:37:20,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:37:20,117 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 08:37:20,121 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:37:20,122 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:37:20,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:37:20 BasicIcfg [2023-08-30 08:37:20,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:37:20,125 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:37:20,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:37:20,126 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:37:20,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:37:09" (3/4) ... [2023-08-30 08:37:20,128 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:37:20,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:37:20,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:37:20,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:37:20,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 08:37:20,136 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-08-30 08:37:20,137 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-08-30 08:37:20,137 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:37:20,137 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:37:20,183 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:37:20,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:37:20,184 INFO L158 Benchmark]: Toolchain (without parser) took 12015.31ms. Allocated memory was 83.9MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 60.9MB in the beginning and 697.6MB in the end (delta: -636.7MB). Peak memory consumption was 693.5MB. Max. memory is 16.1GB. [2023-08-30 08:37:20,184 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:37:20,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.23ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 58.0MB in the end (delta: 2.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2023-08-30 08:37:20,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.87ms. Allocated memory is still 83.9MB. Free memory was 58.0MB in the beginning and 55.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:37:20,185 INFO L158 Benchmark]: Boogie Preprocessor took 32.31ms. Allocated memory is still 83.9MB. Free memory was 55.5MB in the beginning and 53.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:37:20,186 INFO L158 Benchmark]: RCFGBuilder took 795.16ms. Allocated memory is still 83.9MB. Free memory was 53.4MB in the beginning and 35.6MB in the end (delta: 17.9MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-08-30 08:37:20,188 INFO L158 Benchmark]: TraceAbstraction took 10540.66ms. Allocated memory was 83.9MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 58.7MB in the beginning and 700.8MB in the end (delta: -642.1MB). Peak memory consumption was 683.8MB. Max. memory is 16.1GB. [2023-08-30 08:37:20,188 INFO L158 Benchmark]: Witness Printer took 57.95ms. Allocated memory is still 1.4GB. Free memory was 700.8MB in the beginning and 697.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:37:20,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.23ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 58.0MB in the end (delta: 2.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.87ms. Allocated memory is still 83.9MB. Free memory was 58.0MB in the beginning and 55.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.31ms. Allocated memory is still 83.9MB. Free memory was 55.5MB in the beginning and 53.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 795.16ms. Allocated memory is still 83.9MB. Free memory was 53.4MB in the beginning and 35.6MB in the end (delta: 17.9MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 10540.66ms. Allocated memory was 83.9MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 58.7MB in the beginning and 700.8MB in the end (delta: -642.1MB). Peak memory consumption was 683.8MB. Max. memory is 16.1GB. * Witness Printer took 57.95ms. Allocated memory is still 1.4GB. Free memory was 700.8MB in the beginning and 697.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 147 PlacesBefore, 50 PlacesAfterwards, 136 TransitionsBefore, 37 TransitionsAfterwards, 4132 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 105 TotalNumberOfCompositions, 15668 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5322, independent: 4942, independent conditional: 0, independent unconditional: 4942, dependent: 380, dependent conditional: 0, dependent unconditional: 380, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2213, independent: 2128, independent conditional: 0, independent unconditional: 2128, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5322, independent: 2814, independent conditional: 0, independent unconditional: 2814, dependent: 295, dependent conditional: 0, dependent unconditional: 295, unknown: 2213, unknown conditional: 0, unknown unconditional: 2213] , Statistics on independence cache: Total cache size (in pairs): 298, Positive cache size: 270, Positive conditional cache size: 0, Positive unconditional cache size: 270, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: 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 9 procedures, 185 locations, 20 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: 10.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 282 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 247 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 451 IncrementalHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 12 mSDtfsCounter, 451 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.6s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:37:20,217 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