./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix038_tso.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/mix038_tso.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 b1e6ad0aca14cacb1f3fe02bd616009a97ed12a62626693737be4e470d14e12e --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 08:43:51,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:43:51,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:43:51,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:43:51,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:43:51,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:43:51,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:43:51,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:43:51,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:43:51,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:43:51,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:43:51,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:43:51,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:43:51,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:43:51,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:43:51,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:43:51,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:43:51,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:43:51,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:43:51,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:43:51,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:43:51,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:43:51,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:43:51,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:43:51,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:43:51,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:43:51,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:43:51,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:43:51,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:43:51,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:43:51,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:43:51,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:43:51,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:43:51,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:43:51,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:43:51,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:43:51,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:43:51,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:43:51,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:43:51,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:43:51,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:43:51,235 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:43:51,260 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:43:51,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:43:51,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:43:51,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:43:51,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:43:51,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:43:51,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:43:51,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:43:51,263 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:43:51,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:43:51,264 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:43:51,264 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:43:51,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:43:51,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:43:51,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:43:51,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:43:51,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:43:51,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:43:51,266 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:43:51,266 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:43:51,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:43:51,266 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:43:51,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:43:51,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:43:51,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:43:51,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:43:51,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:43:51,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:43:51,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:43:51,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:43:51,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:43:51,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:43:51,269 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:43:51,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:43:51,269 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:43:51,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:43:51,269 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:43:51,270 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1e6ad0aca14cacb1f3fe02bd616009a97ed12a62626693737be4e470d14e12e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:43:51,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:43:51,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:43:51,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:43:51,562 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:43:51,562 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:43:51,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix038_tso.oepc.i [2023-08-30 08:43:52,691 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:43:52,993 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:43:52,995 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix038_tso.oepc.i [2023-08-30 08:43:53,018 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad35e4d76/add95a9d62204eee9e0010c2d6e4243f/FLAG0ccde31b6 [2023-08-30 08:43:53,036 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad35e4d76/add95a9d62204eee9e0010c2d6e4243f [2023-08-30 08:43:53,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:43:53,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:43:53,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:43:53,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:43:53,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:43:53,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca5cfe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53, skipping insertion in model container [2023-08-30 08:43:53,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:43:53,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:43:53,269 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/mix038_tso.oepc.i[949,962] [2023-08-30 08:43:53,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:43:53,479 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:43:53,487 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/mix038_tso.oepc.i[949,962] [2023-08-30 08:43:53,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:43:53,570 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:43:53,570 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:43:53,576 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:43:53,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53 WrapperNode [2023-08-30 08:43:53,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:43:53,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:43:53,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:43:53,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:43:53,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,641 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 149 [2023-08-30 08:43:53,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:43:53,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:43:53,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:43:53,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:43:53,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,676 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:43:53,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:43:53,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:43:53,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:43:53,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (1/1) ... [2023-08-30 08:43:53,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:43:53,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:43:53,723 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 08:43:53,742 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 08:43:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:43:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:43:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:43:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:43:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:43:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:43:53,759 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:43:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:43:53,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:43:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:43:53,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:43:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:43:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:43:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:43:53,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:43:53,767 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 08:43:53,907 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:43:53,909 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:43:54,281 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:43:54,415 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:43:54,416 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:43:54,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:43:54 BoogieIcfgContainer [2023-08-30 08:43:54,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:43:54,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:43:54,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:43:54,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:43:54,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:43:53" (1/3) ... [2023-08-30 08:43:54,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4f3399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:43:54, skipping insertion in model container [2023-08-30 08:43:54,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:43:53" (2/3) ... [2023-08-30 08:43:54,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4f3399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:43:54, skipping insertion in model container [2023-08-30 08:43:54,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:43:54" (3/3) ... [2023-08-30 08:43:54,426 INFO L112 eAbstractionObserver]: Analyzing ICFG mix038_tso.oepc.i [2023-08-30 08:43:54,433 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:43:54,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:43:54,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 08:43:54,441 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:43:54,490 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:43:54,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 116 transitions, 247 flow [2023-08-30 08:43:54,595 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2023-08-30 08:43:54,596 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:43:54,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 80 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2023-08-30 08:43:54,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 116 transitions, 247 flow [2023-08-30 08:43:54,604 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 235 flow [2023-08-30 08:43:54,608 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:43:54,624 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 113 transitions, 235 flow [2023-08-30 08:43:54,627 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 113 transitions, 235 flow [2023-08-30 08:43:54,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 113 transitions, 235 flow [2023-08-30 08:43:54,667 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2023-08-30 08:43:54,668 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:43:54,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2023-08-30 08:43:54,672 INFO L119 LiptonReduction]: Number of co-enabled transitions 2560 [2023-08-30 08:43:58,517 INFO L134 LiptonReduction]: Checked pairs total: 8127 [2023-08-30 08:43:58,517 INFO L136 LiptonReduction]: Total number of compositions: 93 [2023-08-30 08:43:58,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:43:58,534 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;@d01b9f0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:43:58,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 08:43:58,538 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 08:43:58,539 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:43:58,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:43:58,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:43:58,540 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 08:43:58,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:43:58,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2121117462, now seen corresponding path program 1 times [2023-08-30 08:43:58,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:43:58,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644335497] [2023-08-30 08:43:58,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:43:58,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:43:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:43:58,838 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 08:43:58,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:43:58,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644335497] [2023-08-30 08:43:58,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644335497] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:43:58,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:43:58,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:43:58,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218257379] [2023-08-30 08:43:58,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:43:58,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:43:58,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:43:58,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:43:58,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:43:58,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2023-08-30 08:43:58,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 08:43:58,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:43:58,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2023-08-30 08:43:58,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:43:59,236 INFO L130 PetriNetUnfolder]: 929/1475 cut-off events. [2023-08-30 08:43:59,237 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-30 08:43:59,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2980 conditions, 1475 events. 929/1475 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 7107 event pairs, 294 based on Foata normal form. 0/1171 useless extension candidates. Maximal degree in co-relation 2969. Up to 1100 conditions per place. [2023-08-30 08:43:59,248 INFO L137 encePairwiseOnDemand]: 199/209 looper letters, 36 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-08-30 08:43:59,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 44 transitions, 183 flow [2023-08-30 08:43:59,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:43:59,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:43:59,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2023-08-30 08:43:59,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5231259968102073 [2023-08-30 08:43:59,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2023-08-30 08:43:59,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2023-08-30 08:43:59,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:43:59,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2023-08-30 08:43:59,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:43:59,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 08:43:59,273 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 08:43:59,275 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 65 flow. Second operand 3 states and 328 transitions. [2023-08-30 08:43:59,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 44 transitions, 183 flow [2023-08-30 08:43:59,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 178 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:43:59,280 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 98 flow [2023-08-30 08:43:59,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2023-08-30 08:43:59,284 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-08-30 08:43:59,285 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 98 flow [2023-08-30 08:43:59,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 08:43:59,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:43:59,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:43:59,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:43:59,286 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 08:43:59,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:43:59,287 INFO L85 PathProgramCache]: Analyzing trace with hash -9368826, now seen corresponding path program 1 times [2023-08-30 08:43:59,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:43:59,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702726354] [2023-08-30 08:43:59,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:43:59,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:43:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:43:59,418 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 08:43:59,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:43:59,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702726354] [2023-08-30 08:43:59,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702726354] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:43:59,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:43:59,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:43:59,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758683803] [2023-08-30 08:43:59,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:43:59,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:43:59,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:43:59,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:43:59,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:43:59,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2023-08-30 08:43:59,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 08:43:59,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:43:59,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2023-08-30 08:43:59,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:43:59,655 INFO L130 PetriNetUnfolder]: 727/1149 cut-off events. [2023-08-30 08:43:59,655 INFO L131 PetriNetUnfolder]: For 106/106 co-relation queries the response was YES. [2023-08-30 08:43:59,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2792 conditions, 1149 events. 727/1149 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 5297 event pairs, 246 based on Foata normal form. 0/1006 useless extension candidates. Maximal degree in co-relation 2781. Up to 773 conditions per place. [2023-08-30 08:43:59,663 INFO L137 encePairwiseOnDemand]: 202/209 looper letters, 33 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2023-08-30 08:43:59,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 190 flow [2023-08-30 08:43:59,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:43:59,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:43:59,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 416 transitions. [2023-08-30 08:43:59,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49760765550239233 [2023-08-30 08:43:59,667 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 416 transitions. [2023-08-30 08:43:59,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 416 transitions. [2023-08-30 08:43:59,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:43:59,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 416 transitions. [2023-08-30 08:43:59,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 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 08:43:59,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 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 08:43:59,671 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 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 08:43:59,672 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 98 flow. Second operand 4 states and 416 transitions. [2023-08-30 08:43:59,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 190 flow [2023-08-30 08:43:59,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:43:59,674 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 90 flow [2023-08-30 08:43:59,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=90, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-08-30 08:43:59,674 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2023-08-30 08:43:59,675 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 90 flow [2023-08-30 08:43:59,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 08:43:59,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:43:59,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:43:59,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:43:59,676 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 08:43:59,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:43:59,676 INFO L85 PathProgramCache]: Analyzing trace with hash -9368825, now seen corresponding path program 1 times [2023-08-30 08:43:59,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:43:59,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116187445] [2023-08-30 08:43:59,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:43:59,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:43:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:43:59,758 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 08:43:59,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:43:59,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116187445] [2023-08-30 08:43:59,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116187445] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:43:59,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:43:59,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:43:59,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799993070] [2023-08-30 08:43:59,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:43:59,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:43:59,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:43:59,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:43:59,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:43:59,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2023-08-30 08:43:59,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 08:43:59,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:43:59,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2023-08-30 08:43:59,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:43:59,988 INFO L130 PetriNetUnfolder]: 576/910 cut-off events. [2023-08-30 08:43:59,988 INFO L131 PetriNetUnfolder]: For 334/334 co-relation queries the response was YES. [2023-08-30 08:43:59,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2187 conditions, 910 events. 576/910 cut-off events. For 334/334 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4065 event pairs, 218 based on Foata normal form. 0/869 useless extension candidates. Maximal degree in co-relation 2175. Up to 369 conditions per place. [2023-08-30 08:43:59,993 INFO L137 encePairwiseOnDemand]: 202/209 looper letters, 41 selfloop transitions, 7 changer transitions 3/55 dead transitions. [2023-08-30 08:43:59,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 258 flow [2023-08-30 08:43:59,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:43:59,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:43:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2023-08-30 08:43:59,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5143540669856459 [2023-08-30 08:43:59,996 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2023-08-30 08:43:59,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2023-08-30 08:43:59,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:43:59,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2023-08-30 08:43:59,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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 08:43:59,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 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 08:44:00,000 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 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 08:44:00,000 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 90 flow. Second operand 4 states and 430 transitions. [2023-08-30 08:44:00,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 258 flow [2023-08-30 08:44:00,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 55 transitions, 253 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:44:00,002 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 111 flow [2023-08-30 08:44:00,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-08-30 08:44:00,003 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2023-08-30 08:44:00,003 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 111 flow [2023-08-30 08:44:00,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 08:44:00,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:44:00,004 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 08:44:00,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:44:00,004 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 08:44:00,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:44:00,005 INFO L85 PathProgramCache]: Analyzing trace with hash -326921378, now seen corresponding path program 1 times [2023-08-30 08:44:00,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:44:00,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793943021] [2023-08-30 08:44:00,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:44:00,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:44:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:44:00,156 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 08:44:00,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:44:00,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793943021] [2023-08-30 08:44:00,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793943021] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:44:00,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:44:00,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:44:00,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052952726] [2023-08-30 08:44:00,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:44:00,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:44:00,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:44:00,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:44:00,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:44:00,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2023-08-30 08:44:00,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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 08:44:00,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:44:00,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2023-08-30 08:44:00,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:44:00,382 INFO L130 PetriNetUnfolder]: 556/874 cut-off events. [2023-08-30 08:44:00,383 INFO L131 PetriNetUnfolder]: For 684/684 co-relation queries the response was YES. [2023-08-30 08:44:00,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2366 conditions, 874 events. 556/874 cut-off events. For 684/684 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3959 event pairs, 218 based on Foata normal form. 12/857 useless extension candidates. Maximal degree in co-relation 2353. Up to 369 conditions per place. [2023-08-30 08:44:00,385 INFO L137 encePairwiseOnDemand]: 202/209 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2023-08-30 08:44:00,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 237 flow [2023-08-30 08:44:00,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:44:00,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:44:00,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 518 transitions. [2023-08-30 08:44:00,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49569377990430624 [2023-08-30 08:44:00,388 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 518 transitions. [2023-08-30 08:44:00,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 518 transitions. [2023-08-30 08:44:00,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:44:00,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 518 transitions. [2023-08-30 08:44:00,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 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 08:44:00,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 08:44:00,392 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 08:44:00,393 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 111 flow. Second operand 5 states and 518 transitions. [2023-08-30 08:44:00,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 237 flow [2023-08-30 08:44:00,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 49 transitions, 213 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 08:44:00,397 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-30 08:44:00,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-08-30 08:44:00,398 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2023-08-30 08:44:00,398 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-30 08:44:00,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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 08:44:00,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 08:44:00,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 08:44:00,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 08:44:00,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 08:44:00,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 08:44:00,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 08:44:00,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 08:44:00,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 08:44:00,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 08:44:00,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 08:44:00,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 08:44:00,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 08:44:00,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 08:44:00,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 08:44:00,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 08:44:00,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:44:00,408 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 08:44:00,415 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:44:00,415 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:44:00,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:44:00 BasicIcfg [2023-08-30 08:44:00,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:44:00,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:44:00,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:44:00,423 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:44:00,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:43:54" (3/4) ... [2023-08-30 08:44:00,425 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:44:00,429 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:44:00,429 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:44:00,430 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:44:00,436 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-08-30 08:44:00,436 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 08:44:00,437 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 08:44:00,437 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:44:00,470 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:44:00,470 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:44:00,471 INFO L158 Benchmark]: Toolchain (without parser) took 7430.27ms. Allocated memory was 71.3MB in the beginning and 157.3MB in the end (delta: 86.0MB). Free memory was 44.6MB in the beginning and 102.7MB in the end (delta: -58.1MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2023-08-30 08:44:00,471 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 53.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:44:00,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.46ms. Allocated memory is still 71.3MB. Free memory was 44.5MB in the beginning and 39.1MB in the end (delta: 5.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2023-08-30 08:44:00,472 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.37ms. Allocated memory is still 71.3MB. Free memory was 39.1MB in the beginning and 36.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:44:00,472 INFO L158 Benchmark]: Boogie Preprocessor took 38.17ms. Allocated memory is still 71.3MB. Free memory was 36.3MB in the beginning and 34.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:44:00,472 INFO L158 Benchmark]: RCFGBuilder took 737.17ms. Allocated memory is still 71.3MB. Free memory was 34.2MB in the beginning and 39.4MB in the end (delta: -5.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-08-30 08:44:00,473 INFO L158 Benchmark]: TraceAbstraction took 6001.72ms. Allocated memory was 71.3MB in the beginning and 157.3MB in the end (delta: 86.0MB). Free memory was 38.7MB in the beginning and 105.9MB in the end (delta: -67.2MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. [2023-08-30 08:44:00,476 INFO L158 Benchmark]: Witness Printer took 47.93ms. Allocated memory is still 157.3MB. Free memory was 105.9MB in the beginning and 102.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:44:00,477 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 53.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.46ms. Allocated memory is still 71.3MB. Free memory was 44.5MB in the beginning and 39.1MB in the end (delta: 5.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.37ms. Allocated memory is still 71.3MB. Free memory was 39.1MB in the beginning and 36.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.17ms. Allocated memory is still 71.3MB. Free memory was 36.3MB in the beginning and 34.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 737.17ms. Allocated memory is still 71.3MB. Free memory was 34.2MB in the beginning and 39.4MB in the end (delta: -5.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6001.72ms. Allocated memory was 71.3MB in the beginning and 157.3MB in the end (delta: 86.0MB). Free memory was 38.7MB in the beginning and 105.9MB in the end (delta: -67.2MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. * Witness Printer took 47.93ms. Allocated memory is still 157.3MB. Free memory was 105.9MB in the beginning and 102.7MB 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: 3.9s, 121 PlacesBefore, 38 PlacesAfterwards, 113 TransitionsBefore, 28 TransitionsAfterwards, 2560 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 93 TotalNumberOfCompositions, 8127 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2985, independent: 2738, independent conditional: 0, independent unconditional: 2738, dependent: 247, dependent conditional: 0, dependent unconditional: 247, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1430, independent: 1372, independent conditional: 0, independent unconditional: 1372, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2985, independent: 1366, independent conditional: 0, independent unconditional: 1366, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 1430, unknown conditional: 0, unknown unconditional: 1430] , Statistics on independence cache: Total cache size (in pairs): 141, Positive cache size: 122, Positive conditional cache size: 0, Positive unconditional cache size: 122, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: 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, 150 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 245 IncrementalHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 5 mSDtfsCounter, 245 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:44:00,499 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