./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix014_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/mix014_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 4fc83f7400faec1e297c0070148ef6e08fc24a46b81d9a9e52a0ee501a0da326 --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 08:39:04,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:39:04,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:39:04,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:39:04,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:39:04,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:39:04,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:39:04,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:39:04,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:39:04,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:39:04,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:39:04,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:39:04,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:39:04,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:39:04,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:39:04,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:39:04,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:39:04,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:39:04,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:39:04,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:39:04,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:39:04,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:39:04,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:39:04,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:39:04,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:39:04,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:39:04,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:39:04,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:39:04,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:39:04,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:39:04,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:39:04,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:39:04,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:39:04,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:39:04,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:39:04,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:39:04,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:39:04,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:39:04,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:39:04,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:39:04,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:39:04,295 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:39:04,329 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:39:04,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:39:04,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:39:04,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:39:04,332 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:39:04,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:39:04,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:39:04,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:39:04,333 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:39:04,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:39:04,334 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:39:04,334 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:39:04,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:39:04,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:39:04,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:39:04,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:39:04,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:39:04,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:39:04,336 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:39:04,336 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:39:04,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:39:04,336 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:39:04,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:39:04,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:39:04,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:39:04,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:39:04,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:39:04,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:39:04,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:39:04,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:39:04,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:39:04,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:39:04,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:39:04,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:39:04,339 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:39:04,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:39:04,339 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:39:04,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fc83f7400faec1e297c0070148ef6e08fc24a46b81d9a9e52a0ee501a0da326 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:39:04,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:39:04,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:39:04,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:39:04,662 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:39:04,662 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:39:04,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix014_tso.oepc.i [2023-08-30 08:39:05,783 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:39:06,001 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:39:06,001 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014_tso.oepc.i [2023-08-30 08:39:06,030 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928d1fe24/1efffa4db79f43b5bd42eaf37bc55485/FLAG2684676ac [2023-08-30 08:39:06,040 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928d1fe24/1efffa4db79f43b5bd42eaf37bc55485 [2023-08-30 08:39:06,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:39:06,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:39:06,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:39:06,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:39:06,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:39:06,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@313dcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06, skipping insertion in model container [2023-08-30 08:39:06,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:39:06,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:39:06,286 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/mix014_tso.oepc.i[949,962] [2023-08-30 08:39:06,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:39:06,568 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:39:06,577 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/mix014_tso.oepc.i[949,962] [2023-08-30 08:39:06,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:39:06,678 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:39:06,679 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:39:06,685 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:39:06,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06 WrapperNode [2023-08-30 08:39:06,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:39:06,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:39:06,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:39:06,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:39:06,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,772 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 267 [2023-08-30 08:39:06,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:39:06,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:39:06,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:39:06,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:39:06,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,829 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:39:06,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:39:06,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:39:06,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:39:06,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (1/1) ... [2023-08-30 08:39:06,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:39:06,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:39:06,879 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 08:39:06,899 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 08:39:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:39:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:39:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:39:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:39:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:39:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:39:06,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:39:06,922 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:39:06,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:39:06,922 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:39:06,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:39:06,922 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 08:39:06,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 08:39:06,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:39:06,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:39:06,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:39:06,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:39:06,924 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 08:39:07,122 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:39:07,137 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:39:07,585 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:39:07,808 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:39:07,808 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:39:07,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:39:07 BoogieIcfgContainer [2023-08-30 08:39:07,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:39:07,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:39:07,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:39:07,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:39:07,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:39:06" (1/3) ... [2023-08-30 08:39:07,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8857ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:39:07, skipping insertion in model container [2023-08-30 08:39:07,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:06" (2/3) ... [2023-08-30 08:39:07,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8857ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:39:07, skipping insertion in model container [2023-08-30 08:39:07,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:39:07" (3/3) ... [2023-08-30 08:39:07,819 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014_tso.oepc.i [2023-08-30 08:39:07,825 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:39:07,834 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:39:07,834 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 08:39:07,835 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:39:07,908 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:39:07,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 157 transitions, 334 flow [2023-08-30 08:39:08,019 INFO L130 PetriNetUnfolder]: 2/153 cut-off events. [2023-08-30 08:39:08,019 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:39:08,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 153 events. 2/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-30 08:39:08,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 157 transitions, 334 flow [2023-08-30 08:39:08,033 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 153 transitions, 318 flow [2023-08-30 08:39:08,039 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:39:08,051 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 153 transitions, 318 flow [2023-08-30 08:39:08,054 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 153 transitions, 318 flow [2023-08-30 08:39:08,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 153 transitions, 318 flow [2023-08-30 08:39:08,110 INFO L130 PetriNetUnfolder]: 2/153 cut-off events. [2023-08-30 08:39:08,111 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:39:08,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 153 events. 2/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-30 08:39:08,117 INFO L119 LiptonReduction]: Number of co-enabled transitions 4146 [2023-08-30 08:39:14,304 INFO L134 LiptonReduction]: Checked pairs total: 15488 [2023-08-30 08:39:14,304 INFO L136 LiptonReduction]: Total number of compositions: 123 [2023-08-30 08:39:14,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:39:14,321 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;@38cbba60, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:39:14,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 08:39:14,325 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 08:39:14,325 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:39:14,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:39:14,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:39:14,326 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 08:39:14,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:39:14,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1598727982, now seen corresponding path program 1 times [2023-08-30 08:39:14,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:39:14,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995536709] [2023-08-30 08:39:14,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:39:14,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:39:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:39:14,710 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 08:39:14,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:39:14,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995536709] [2023-08-30 08:39:14,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995536709] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:39:14,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:39:14,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:39:14,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387661881] [2023-08-30 08:39:14,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:39:14,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:39:14,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:39:14,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:39:14,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:39:14,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 280 [2023-08-30 08:39:14,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 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 08:39:14,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:39:14,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 280 [2023-08-30 08:39:14,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:39:17,168 INFO L130 PetriNetUnfolder]: 11510/15693 cut-off events. [2023-08-30 08:39:17,169 INFO L131 PetriNetUnfolder]: For 188/188 co-relation queries the response was YES. [2023-08-30 08:39:17,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31572 conditions, 15693 events. 11510/15693 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 83113 event pairs, 11510 based on Foata normal form. 0/12496 useless extension candidates. Maximal degree in co-relation 31560. Up to 15441 conditions per place. [2023-08-30 08:39:17,279 INFO L137 encePairwiseOnDemand]: 275/280 looper letters, 28 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2023-08-30 08:39:17,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 33 transitions, 136 flow [2023-08-30 08:39:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:39:17,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:39:17,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2023-08-30 08:39:17,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4928571428571429 [2023-08-30 08:39:17,297 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 414 transitions. [2023-08-30 08:39:17,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 414 transitions. [2023-08-30 08:39:17,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:39:17,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 414 transitions. [2023-08-30 08:39:17,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 08:39:17,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 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 08:39:17,309 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 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 08:39:17,310 INFO L175 Difference]: Start difference. First operand has 50 places, 37 transitions, 86 flow. Second operand 3 states and 414 transitions. [2023-08-30 08:39:17,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 33 transitions, 136 flow [2023-08-30 08:39:17,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 33 transitions, 132 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:39:17,320 INFO L231 Difference]: Finished difference. Result has 44 places, 33 transitions, 76 flow [2023-08-30 08:39:17,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2023-08-30 08:39:17,325 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -6 predicate places. [2023-08-30 08:39:17,325 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 76 flow [2023-08-30 08:39:17,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 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 08:39:17,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:39:17,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:39:17,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:39:17,326 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:39:17,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:39:17,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1598727983, now seen corresponding path program 1 times [2023-08-30 08:39:17,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:39:17,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674554178] [2023-08-30 08:39:17,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:39:17,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:39:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:39:17,380 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 08:39:17,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:39:17,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674554178] [2023-08-30 08:39:17,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674554178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:39:17,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:39:17,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:39:17,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382798616] [2023-08-30 08:39:17,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:39:17,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:39:17,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:39:17,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:39:17,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:39:17,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 280 [2023-08-30 08:39:17,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 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 08:39:17,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:39:17,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 280 [2023-08-30 08:39:17,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:39:18,857 INFO L130 PetriNetUnfolder]: 7431/10360 cut-off events. [2023-08-30 08:39:18,858 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:39:18,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20918 conditions, 10360 events. 7431/10360 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 54889 event pairs, 2144 based on Foata normal form. 0/8919 useless extension candidates. Maximal degree in co-relation 20912. Up to 7960 conditions per place. [2023-08-30 08:39:18,915 INFO L137 encePairwiseOnDemand]: 271/280 looper letters, 47 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-08-30 08:39:18,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 56 transitions, 232 flow [2023-08-30 08:39:18,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:39:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:39:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2023-08-30 08:39:18,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5202380952380953 [2023-08-30 08:39:18,920 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2023-08-30 08:39:18,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2023-08-30 08:39:18,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:39:18,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2023-08-30 08:39:18,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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 08:39:18,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 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 08:39:18,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 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 08:39:18,928 INFO L175 Difference]: Start difference. First operand has 44 places, 33 transitions, 76 flow. Second operand 3 states and 437 transitions. [2023-08-30 08:39:18,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 56 transitions, 232 flow [2023-08-30 08:39:18,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 56 transitions, 231 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:39:18,930 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 114 flow [2023-08-30 08:39:18,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2023-08-30 08:39:18,931 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -4 predicate places. [2023-08-30 08:39:18,931 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 114 flow [2023-08-30 08:39:18,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 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 08:39:18,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:39:18,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:39:18,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:39:18,933 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 08:39:18,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:39:18,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1286613278, now seen corresponding path program 1 times [2023-08-30 08:39:18,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:39:18,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706654360] [2023-08-30 08:39:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:39:18,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:39:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:39:19,114 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 08:39:19,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:39:19,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706654360] [2023-08-30 08:39:19,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706654360] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:39:19,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:39:19,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:39:19,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672169092] [2023-08-30 08:39:19,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:39:19,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:39:19,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:39:19,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:39:19,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:39:19,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 280 [2023-08-30 08:39:19,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 08:39:19,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:39:19,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 280 [2023-08-30 08:39:19,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:39:20,093 INFO L130 PetriNetUnfolder]: 5237/7352 cut-off events. [2023-08-30 08:39:20,093 INFO L131 PetriNetUnfolder]: For 649/649 co-relation queries the response was YES. [2023-08-30 08:39:20,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17438 conditions, 7352 events. 5237/7352 cut-off events. For 649/649 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 37817 event pairs, 1662 based on Foata normal form. 0/6954 useless extension candidates. Maximal degree in co-relation 17430. Up to 2818 conditions per place. [2023-08-30 08:39:20,133 INFO L137 encePairwiseOnDemand]: 271/280 looper letters, 64 selfloop transitions, 9 changer transitions 0/77 dead transitions. [2023-08-30 08:39:20,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 77 transitions, 358 flow [2023-08-30 08:39:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:39:20,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:39:20,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 585 transitions. [2023-08-30 08:39:20,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5223214285714286 [2023-08-30 08:39:20,136 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 585 transitions. [2023-08-30 08:39:20,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 585 transitions. [2023-08-30 08:39:20,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:39:20,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 585 transitions. [2023-08-30 08:39:20,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.25) internal successors, (585), 4 states have internal predecessors, (585), 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 08:39:20,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 280.0) internal successors, (1400), 5 states have internal predecessors, (1400), 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 08:39:20,141 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 280.0) internal successors, (1400), 5 states have internal predecessors, (1400), 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 08:39:20,141 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 114 flow. Second operand 4 states and 585 transitions. [2023-08-30 08:39:20,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 77 transitions, 358 flow [2023-08-30 08:39:20,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 77 transitions, 353 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:39:20,144 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 167 flow [2023-08-30 08:39:20,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=109, 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=167, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-08-30 08:39:20,145 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-08-30 08:39:20,145 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 167 flow [2023-08-30 08:39:20,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 08:39:20,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:39:20,146 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 08:39:20,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:39:20,146 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 08:39:20,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:39:20,147 INFO L85 PathProgramCache]: Analyzing trace with hash 54525119, now seen corresponding path program 1 times [2023-08-30 08:39:20,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:39:20,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115480810] [2023-08-30 08:39:20,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:39:20,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:39:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:39:20,258 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 08:39:20,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:39:20,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115480810] [2023-08-30 08:39:20,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115480810] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:39:20,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:39:20,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:39:20,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906534530] [2023-08-30 08:39:20,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:39:20,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:39:20,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:39:20,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:39:20,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:39:20,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 280 [2023-08-30 08:39:20,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 167 flow. Second operand has 5 states, 5 states have (on average 130.4) internal successors, (652), 5 states have internal predecessors, (652), 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 08:39:20,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:39:20,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 280 [2023-08-30 08:39:20,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:39:21,053 INFO L130 PetriNetUnfolder]: 4895/6812 cut-off events. [2023-08-30 08:39:21,053 INFO L131 PetriNetUnfolder]: For 4179/4179 co-relation queries the response was YES. [2023-08-30 08:39:21,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17538 conditions, 6812 events. 4895/6812 cut-off events. For 4179/4179 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 34626 event pairs, 1618 based on Foata normal form. 0/6636 useless extension candidates. Maximal degree in co-relation 17528. Up to 2818 conditions per place. [2023-08-30 08:39:21,087 INFO L137 encePairwiseOnDemand]: 271/280 looper letters, 75 selfloop transitions, 13 changer transitions 4/96 dead transitions. [2023-08-30 08:39:21,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 96 transitions, 489 flow [2023-08-30 08:39:21,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:39:21,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:39:21,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 731 transitions. [2023-08-30 08:39:21,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5221428571428571 [2023-08-30 08:39:21,094 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 731 transitions. [2023-08-30 08:39:21,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 731 transitions. [2023-08-30 08:39:21,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:39:21,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 731 transitions. [2023-08-30 08:39:21,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.2) internal successors, (731), 5 states have internal predecessors, (731), 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 08:39:21,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 280.0) internal successors, (1680), 6 states have internal predecessors, (1680), 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 08:39:21,100 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 280.0) internal successors, (1680), 6 states have internal predecessors, (1680), 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 08:39:21,100 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 167 flow. Second operand 5 states and 731 transitions. [2023-08-30 08:39:21,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 96 transitions, 489 flow [2023-08-30 08:39:21,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 96 transitions, 471 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 08:39:21,107 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 191 flow [2023-08-30 08:39:21,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=149, 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=191, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2023-08-30 08:39:21,108 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2023-08-30 08:39:21,108 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 191 flow [2023-08-30 08:39:21,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.4) internal successors, (652), 5 states have internal predecessors, (652), 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 08:39:21,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:39:21,109 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 08:39:21,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:39:21,110 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 08:39:21,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:39:21,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1148182653, now seen corresponding path program 1 times [2023-08-30 08:39:21,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:39:21,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985783740] [2023-08-30 08:39:21,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:39:21,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:39:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:39:21,251 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 08:39:21,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:39:21,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985783740] [2023-08-30 08:39:21,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985783740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:39:21,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:39:21,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:39:21,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073384542] [2023-08-30 08:39:21,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:39:21,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:39:21,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:39:21,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:39:21,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:39:21,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 280 [2023-08-30 08:39:21,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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 08:39:21,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:39:21,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 280 [2023-08-30 08:39:21,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:39:22,242 INFO L130 PetriNetUnfolder]: 4868/6765 cut-off events. [2023-08-30 08:39:22,242 INFO L131 PetriNetUnfolder]: For 4977/4977 co-relation queries the response was YES. [2023-08-30 08:39:22,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17849 conditions, 6765 events. 4868/6765 cut-off events. For 4977/4977 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 34535 event pairs, 1618 based on Foata normal form. 16/6621 useless extension candidates. Maximal degree in co-relation 17838. Up to 2818 conditions per place. [2023-08-30 08:39:22,261 INFO L137 encePairwiseOnDemand]: 271/280 looper letters, 0 selfloop transitions, 0 changer transitions 88/88 dead transitions. [2023-08-30 08:39:22,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 88 transitions, 441 flow [2023-08-30 08:39:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:39:22,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:39:22,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 850 transitions. [2023-08-30 08:39:22,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2023-08-30 08:39:22,265 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 850 transitions. [2023-08-30 08:39:22,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 850 transitions. [2023-08-30 08:39:22,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:39:22,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 850 transitions. [2023-08-30 08:39:22,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.66666666666666) internal successors, (850), 6 states have internal predecessors, (850), 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 08:39:22,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 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 08:39:22,272 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 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 08:39:22,272 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 191 flow. Second operand 6 states and 850 transitions. [2023-08-30 08:39:22,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 88 transitions, 441 flow [2023-08-30 08:39:22,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 88 transitions, 386 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 08:39:22,397 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-08-30 08:39:22,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=104, 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 08:39:22,399 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-08-30 08:39:22,399 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-08-30 08:39:22,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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 08:39:22,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 08:39:22,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 08:39:22,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 08:39:22,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 08:39:22,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 08:39:22,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 08:39:22,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 08:39:22,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 08:39:22,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 08:39:22,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 08:39:22,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 08:39:22,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 08:39:22,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 08:39:22,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 08:39:22,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 08:39:22,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 08:39:22,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 08:39:22,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 08:39:22,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 08:39:22,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 08:39:22,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:39:22,414 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 08:39:22,421 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:39:22,421 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:39:22,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:39:22 BasicIcfg [2023-08-30 08:39:22,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:39:22,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:39:22,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:39:22,425 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:39:22,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:39:07" (3/4) ... [2023-08-30 08:39:22,428 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:39:22,432 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:39:22,432 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:39:22,432 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:39:22,433 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 08:39:22,439 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2023-08-30 08:39:22,440 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-30 08:39:22,440 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 08:39:22,440 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:39:22,483 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:39:22,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:39:22,487 INFO L158 Benchmark]: Toolchain (without parser) took 16442.86ms. Allocated memory was 83.9MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 57.6MB in the beginning and 2.0GB in the end (delta: -2.0GB). Peak memory consumption was 719.9MB. Max. memory is 16.1GB. [2023-08-30 08:39:22,487 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:39:22,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 640.53ms. Allocated memory is still 83.9MB. Free memory was 57.5MB in the beginning and 50.2MB in the end (delta: 7.3MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2023-08-30 08:39:22,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.97ms. Allocated memory is still 83.9MB. Free memory was 50.2MB in the beginning and 46.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:39:22,488 INFO L158 Benchmark]: Boogie Preprocessor took 67.27ms. Allocated memory is still 83.9MB. Free memory was 46.4MB in the beginning and 43.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:39:22,489 INFO L158 Benchmark]: RCFGBuilder took 968.06ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 43.6MB in the beginning and 74.0MB in the end (delta: -30.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-08-30 08:39:22,490 INFO L158 Benchmark]: TraceAbstraction took 14612.73ms. Allocated memory was 100.7MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 73.1MB in the beginning and 2.0GB in the end (delta: -2.0GB). Peak memory consumption was 898.6MB. Max. memory is 16.1GB. [2023-08-30 08:39:22,490 INFO L158 Benchmark]: Witness Printer took 60.90ms. Allocated memory is still 2.8GB. Free memory was 2.0GB in the beginning and 2.0GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:39:22,492 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 60.8MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 640.53ms. Allocated memory is still 83.9MB. Free memory was 57.5MB in the beginning and 50.2MB in the end (delta: 7.3MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.97ms. Allocated memory is still 83.9MB. Free memory was 50.2MB in the beginning and 46.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.27ms. Allocated memory is still 83.9MB. Free memory was 46.4MB in the beginning and 43.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 968.06ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 43.6MB in the beginning and 74.0MB in the end (delta: -30.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14612.73ms. Allocated memory was 100.7MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 73.1MB in the beginning and 2.0GB in the end (delta: -2.0GB). Peak memory consumption was 898.6MB. Max. memory is 16.1GB. * Witness Printer took 60.90ms. Allocated memory is still 2.8GB. Free memory was 2.0GB in the beginning and 2.0GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 164 PlacesBefore, 50 PlacesAfterwards, 153 TransitionsBefore, 37 TransitionsAfterwards, 4146 CoEnabledTransitionPairs, 7 FixpointIterations, 62 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 123 TotalNumberOfCompositions, 15488 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4861, independent: 4478, independent conditional: 0, independent unconditional: 4478, dependent: 383, dependent conditional: 0, dependent unconditional: 383, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2130, independent: 2062, independent conditional: 0, independent unconditional: 2062, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4861, independent: 2416, independent conditional: 0, independent unconditional: 2416, dependent: 315, dependent conditional: 0, dependent unconditional: 315, unknown: 2130, unknown conditional: 0, unknown unconditional: 2130] , Statistics on independence cache: Total cache size (in pairs): 244, Positive cache size: 219, Positive conditional cache size: 0, Positive unconditional cache size: 219, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 907]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 907]: 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, 202 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: 14.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 271 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 238 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 390 IncrementalHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 15 mSDtfsCounter, 390 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 195 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 08:39:22,535 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