./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix036.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix036.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 e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 12:59:37,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:59:37,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:59:37,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:59:37,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:59:37,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:59:37,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:59:37,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:59:37,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:59:37,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:59:37,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:59:37,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:59:37,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:59:37,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:59:37,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:59:37,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:59:37,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:59:37,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:59:37,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:59:37,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:59:37,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:59:37,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:59:37,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:59:37,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:59:37,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:59:37,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:59:37,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:59:37,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:59:37,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:59:37,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:59:37,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:59:37,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:59:37,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:59:37,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:59:37,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:59:37,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:59:37,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:59:37,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:59:37,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:59:37,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:59:37,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:59:37,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:59:37,585 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:59:37,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:59:37,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:59:37,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:59:37,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:59:37,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:59:37,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:59:37,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:59:37,589 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:59:37,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:59:37,590 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:59:37,590 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:59:37,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:59:37,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:59:37,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:59:37,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:59:37,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:59:37,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:59:37,592 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:59:37,592 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:59:37,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:59:37,592 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:59:37,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:59:37,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:59:37,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:59:37,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:59:37,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:59:37,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:59:37,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:59:37,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:59:37,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:59:37,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:59:37,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:59:37,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:59:37,595 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:59:37,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:59:37,595 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:59:37,596 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 12:59:37,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:59:37,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:59:37,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:59:37,977 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:59:37,978 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:59:37,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix036.oepc.i [2023-08-30 12:59:39,110 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:59:39,400 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:59:39,401 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix036.oepc.i [2023-08-30 12:59:39,427 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/665948239/204531c45cef4e198aa28e6ae41542d1/FLAGaec755e98 [2023-08-30 12:59:39,438 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/665948239/204531c45cef4e198aa28e6ae41542d1 [2023-08-30 12:59:39,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:59:39,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:59:39,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:59:39,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:59:39,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:59:39,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:39,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ac3f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39, skipping insertion in model container [2023-08-30 12:59:39,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:39,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:59:39,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:59:39,603 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/mix036.oepc.i[945,958] [2023-08-30 12:59:39,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:59:39,835 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:59:39,850 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/mix036.oepc.i[945,958] [2023-08-30 12:59:39,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:59:39,964 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:59:39,965 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:59:39,970 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:59:39,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39 WrapperNode [2023-08-30 12:59:39,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:59:39,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:59:39,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:59:39,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:59:39,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:40,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:40,043 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 149 [2023-08-30 12:59:40,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:59:40,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:59:40,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:59:40,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:59:40,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:40,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:40,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:40,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:40,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:40,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:40,108 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:40,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:40,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:59:40,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:59:40,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:59:40,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:59:40,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (1/1) ... [2023-08-30 12:59:40,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:59:40,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:59:40,162 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 12:59:40,185 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 12:59:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 12:59:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 12:59:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:59:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:59:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:59:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 12:59:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 12:59:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 12:59:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 12:59:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 12:59:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 12:59:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 12:59:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 12:59:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 12:59:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 12:59:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:59:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:59:40,206 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 12:59:40,367 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:59:40,369 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:59:40,792 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:59:40,910 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:59:40,910 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 12:59:40,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:59:40 BoogieIcfgContainer [2023-08-30 12:59:40,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:59:40,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:59:40,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:59:40,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:59:40,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:59:39" (1/3) ... [2023-08-30 12:59:40,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e14b8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:59:40, skipping insertion in model container [2023-08-30 12:59:40,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:39" (2/3) ... [2023-08-30 12:59:40,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e14b8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:59:40, skipping insertion in model container [2023-08-30 12:59:40,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:59:40" (3/3) ... [2023-08-30 12:59:40,921 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036.oepc.i [2023-08-30 12:59:40,928 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:59:40,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:59:40,937 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 12:59:40,937 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:59:41,007 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 12:59:41,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 140 transitions, 300 flow [2023-08-30 12:59:41,116 INFO L130 PetriNetUnfolder]: 2/136 cut-off events. [2023-08-30 12:59:41,116 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:59:41,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 136 events. 2/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-30 12:59:41,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 140 transitions, 300 flow [2023-08-30 12:59:41,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 136 transitions, 284 flow [2023-08-30 12:59:41,135 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 12:59:41,154 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 136 transitions, 284 flow [2023-08-30 12:59:41,157 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 136 transitions, 284 flow [2023-08-30 12:59:41,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 284 flow [2023-08-30 12:59:41,208 INFO L130 PetriNetUnfolder]: 2/136 cut-off events. [2023-08-30 12:59:41,209 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:59:41,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 136 events. 2/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-30 12:59:41,214 INFO L119 LiptonReduction]: Number of co-enabled transitions 4116 [2023-08-30 12:59:45,203 INFO L134 LiptonReduction]: Checked pairs total: 15362 [2023-08-30 12:59:45,204 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-08-30 12:59:45,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 12:59:45,222 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;@6fc35237, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 12:59:45,222 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 12:59:45,228 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 12:59:45,228 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:59:45,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:45,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 12:59:45,230 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 12:59:45,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:45,234 INFO L85 PathProgramCache]: Analyzing trace with hash 434981120, now seen corresponding path program 1 times [2023-08-30 12:59:45,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:45,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094572353] [2023-08-30 12:59:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:45,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:45,543 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 12:59:45,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:45,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094572353] [2023-08-30 12:59:45,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094572353] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:45,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:45,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 12:59:45,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382203160] [2023-08-30 12:59:45,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:45,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:59:45,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:45,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:59:45,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:59:45,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 248 [2023-08-30 12:59:45,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:45,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:45,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 248 [2023-08-30 12:59:45,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:47,309 INFO L130 PetriNetUnfolder]: 11055/15305 cut-off events. [2023-08-30 12:59:47,310 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2023-08-30 12:59:47,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30889 conditions, 15305 events. 11055/15305 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 84442 event pairs, 3136 based on Foata normal form. 0/11711 useless extension candidates. Maximal degree in co-relation 30877. Up to 13160 conditions per place. [2023-08-30 12:59:47,417 INFO L137 encePairwiseOnDemand]: 234/248 looper letters, 51 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-08-30 12:59:47,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 59 transitions, 251 flow [2023-08-30 12:59:47,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:59:47,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:59:47,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 405 transitions. [2023-08-30 12:59:47,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5443548387096774 [2023-08-30 12:59:47,431 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 405 transitions. [2023-08-30 12:59:47,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 405 transitions. [2023-08-30 12:59:47,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:47,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 405 transitions. [2023-08-30 12:59:47,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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 12:59:47,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 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 12:59:47,442 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 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 12:59:47,444 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 86 flow. Second operand 3 states and 405 transitions. [2023-08-30 12:59:47,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 59 transitions, 251 flow [2023-08-30 12:59:47,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 59 transitions, 244 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 12:59:47,454 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 127 flow [2023-08-30 12:59:47,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-30 12:59:47,459 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 12:59:47,460 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 127 flow [2023-08-30 12:59:47,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:47,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:47,461 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:59:47,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 12:59:47,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:59:47,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:47,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2072119997, now seen corresponding path program 1 times [2023-08-30 12:59:47,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:47,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354309496] [2023-08-30 12:59:47,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:47,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:47,622 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 12:59:47,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:47,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354309496] [2023-08-30 12:59:47,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354309496] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:47,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:47,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:59:47,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255808312] [2023-08-30 12:59:47,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:47,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:59:47,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:47,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:59:47,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:59:47,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 248 [2023-08-30 12:59:47,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:47,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:47,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 248 [2023-08-30 12:59:47,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:48,962 INFO L130 PetriNetUnfolder]: 7817/11079 cut-off events. [2023-08-30 12:59:48,962 INFO L131 PetriNetUnfolder]: For 595/595 co-relation queries the response was YES. [2023-08-30 12:59:48,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26794 conditions, 11079 events. 7817/11079 cut-off events. For 595/595 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 61704 event pairs, 1792 based on Foata normal form. 0/9433 useless extension candidates. Maximal degree in co-relation 26783. Up to 5958 conditions per place. [2023-08-30 12:59:49,032 INFO L137 encePairwiseOnDemand]: 235/248 looper letters, 68 selfloop transitions, 13 changer transitions 0/84 dead transitions. [2023-08-30 12:59:49,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 84 transitions, 403 flow [2023-08-30 12:59:49,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:59:49,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:59:49,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 537 transitions. [2023-08-30 12:59:49,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5413306451612904 [2023-08-30 12:59:49,041 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 537 transitions. [2023-08-30 12:59:49,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 537 transitions. [2023-08-30 12:59:49,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:49,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 537 transitions. [2023-08-30 12:59:49,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 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 12:59:49,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 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 12:59:49,047 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 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 12:59:49,048 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 127 flow. Second operand 4 states and 537 transitions. [2023-08-30 12:59:49,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 84 transitions, 403 flow [2023-08-30 12:59:49,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 84 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:59:49,052 INFO L231 Difference]: Finished difference. Result has 52 places, 48 transitions, 225 flow [2023-08-30 12:59:49,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=52, PETRI_TRANSITIONS=48} [2023-08-30 12:59:49,053 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 3 predicate places. [2023-08-30 12:59:49,053 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 225 flow [2023-08-30 12:59:49,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:49,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:49,054 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:59:49,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 12:59:49,055 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:59:49,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:49,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2072119996, now seen corresponding path program 1 times [2023-08-30 12:59:49,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:49,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737850177] [2023-08-30 12:59:49,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:49,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:49,166 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 12:59:49,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:49,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737850177] [2023-08-30 12:59:49,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737850177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:49,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:49,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:59:49,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337877556] [2023-08-30 12:59:49,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:49,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:59:49,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:49,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:59:49,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:59:49,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 248 [2023-08-30 12:59:49,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:49,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:49,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 248 [2023-08-30 12:59:49,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:50,006 INFO L130 PetriNetUnfolder]: 5049/6981 cut-off events. [2023-08-30 12:59:50,006 INFO L131 PetriNetUnfolder]: For 5229/5229 co-relation queries the response was YES. [2023-08-30 12:59:50,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18365 conditions, 6981 events. 5049/6981 cut-off events. For 5229/5229 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 35370 event pairs, 1558 based on Foata normal form. 854/7583 useless extension candidates. Maximal degree in co-relation 18351. Up to 4835 conditions per place. [2023-08-30 12:59:50,060 INFO L137 encePairwiseOnDemand]: 239/248 looper letters, 51 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-08-30 12:59:50,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 59 transitions, 325 flow [2023-08-30 12:59:50,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:59:50,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:59:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2023-08-30 12:59:50,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5120967741935484 [2023-08-30 12:59:50,065 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2023-08-30 12:59:50,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2023-08-30 12:59:50,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:50,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2023-08-30 12:59:50,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 12:59:50,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 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 12:59:50,074 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 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 12:59:50,075 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 225 flow. Second operand 4 states and 508 transitions. [2023-08-30 12:59:50,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 59 transitions, 325 flow [2023-08-30 12:59:50,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 59 transitions, 302 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-30 12:59:50,212 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 156 flow [2023-08-30 12:59:50,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-30 12:59:50,214 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 12:59:50,217 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 156 flow [2023-08-30 12:59:50,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:50,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:50,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:59:50,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 12:59:50,218 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 12:59:50,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:50,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1525416, now seen corresponding path program 1 times [2023-08-30 12:59:50,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:50,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456320905] [2023-08-30 12:59:50,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:50,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:50,347 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 12:59:50,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:50,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456320905] [2023-08-30 12:59:50,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456320905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:50,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:50,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 12:59:50,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331793530] [2023-08-30 12:59:50,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:50,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 12:59:50,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:50,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 12:59:50,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 12:59:50,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 248 [2023-08-30 12:59:50,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:50,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:50,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 248 [2023-08-30 12:59:50,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:51,101 INFO L130 PetriNetUnfolder]: 4707/6441 cut-off events. [2023-08-30 12:59:51,101 INFO L131 PetriNetUnfolder]: For 4107/4107 co-relation queries the response was YES. [2023-08-30 12:59:51,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16222 conditions, 6441 events. 4707/6441 cut-off events. For 4107/4107 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 32248 event pairs, 1514 based on Foata normal form. 0/6411 useless extension candidates. Maximal degree in co-relation 16209. Up to 2718 conditions per place. [2023-08-30 12:59:51,142 INFO L137 encePairwiseOnDemand]: 239/248 looper letters, 75 selfloop transitions, 13 changer transitions 4/95 dead transitions. [2023-08-30 12:59:51,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 95 transitions, 478 flow [2023-08-30 12:59:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 12:59:51,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 12:59:51,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 661 transitions. [2023-08-30 12:59:51,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5330645161290323 [2023-08-30 12:59:51,149 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 661 transitions. [2023-08-30 12:59:51,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 661 transitions. [2023-08-30 12:59:51,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:51,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 661 transitions. [2023-08-30 12:59:51,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.2) internal successors, (661), 5 states have internal predecessors, (661), 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 12:59:51,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 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 12:59:51,155 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 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 12:59:51,155 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 156 flow. Second operand 5 states and 661 transitions. [2023-08-30 12:59:51,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 95 transitions, 478 flow [2023-08-30 12:59:51,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 95 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 12:59:51,161 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 192 flow [2023-08-30 12:59:51,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=192, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2023-08-30 12:59:51,163 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-08-30 12:59:51,163 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 192 flow [2023-08-30 12:59:51,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:59:51,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:59:51,164 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] [2023-08-30 12:59:51,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 12:59:51,164 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 12:59:51,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:59:51,165 INFO L85 PathProgramCache]: Analyzing trace with hash -291766963, now seen corresponding path program 1 times [2023-08-30 12:59:51,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:59:51,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048562805] [2023-08-30 12:59:51,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:59:51,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:59:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:59:51,315 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 12:59:51,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:59:51,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048562805] [2023-08-30 12:59:51,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048562805] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:59:51,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:59:51,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 12:59:51,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915429247] [2023-08-30 12:59:51,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:59:51,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 12:59:51,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:59:51,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 12:59:51,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 12:59:51,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 248 [2023-08-30 12:59:51,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 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 12:59:51,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:59:51,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 248 [2023-08-30 12:59:51,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:59:52,025 INFO L130 PetriNetUnfolder]: 4680/6394 cut-off events. [2023-08-30 12:59:52,026 INFO L131 PetriNetUnfolder]: For 4723/4723 co-relation queries the response was YES. [2023-08-30 12:59:52,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17745 conditions, 6394 events. 4680/6394 cut-off events. For 4723/4723 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 32011 event pairs, 1514 based on Foata normal form. 16/6396 useless extension candidates. Maximal degree in co-relation 17731. Up to 2718 conditions per place. [2023-08-30 12:59:52,045 INFO L137 encePairwiseOnDemand]: 239/248 looper letters, 0 selfloop transitions, 0 changer transitions 87/87 dead transitions. [2023-08-30 12:59:52,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 87 transitions, 442 flow [2023-08-30 12:59:52,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 12:59:52,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 12:59:52,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 766 transitions. [2023-08-30 12:59:52,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5147849462365591 [2023-08-30 12:59:52,049 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 766 transitions. [2023-08-30 12:59:52,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 766 transitions. [2023-08-30 12:59:52,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:59:52,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 766 transitions. [2023-08-30 12:59:52,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.66666666666667) internal successors, (766), 6 states have internal predecessors, (766), 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 12:59:52,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 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 12:59:52,055 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 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 12:59:52,055 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 192 flow. Second operand 6 states and 766 transitions. [2023-08-30 12:59:52,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 87 transitions, 442 flow [2023-08-30 12:59:52,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 87 transitions, 387 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 12:59:52,168 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-08-30 12:59:52,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-08-30 12:59:52,168 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-08-30 12:59:52,169 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-08-30 12:59:52,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 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 12:59:52,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 12:59:52,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 12:59:52,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 12:59:52,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 12:59:52,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 12:59:52,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 12:59:52,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 12:59:52,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 12:59:52,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 12:59:52,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 12:59:52,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 12:59:52,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 12:59:52,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 12:59:52,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 12:59:52,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 12:59:52,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 12:59:52,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 12:59:52,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 12:59:52,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 12:59:52,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 12:59:52,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 12:59:52,176 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 12:59:52,181 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 12:59:52,181 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 12:59:52,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 12:59:52 BasicIcfg [2023-08-30 12:59:52,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 12:59:52,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 12:59:52,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 12:59:52,185 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 12:59:52,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:59:40" (3/4) ... [2023-08-30 12:59:52,187 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 12:59:52,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 12:59:52,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 12:59:52,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 12:59:52,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 12:59:52,195 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-08-30 12:59:52,195 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-08-30 12:59:52,196 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 12:59:52,196 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 12:59:52,226 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 12:59:52,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 12:59:52,226 INFO L158 Benchmark]: Toolchain (without parser) took 12786.22ms. Allocated memory was 69.2MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 45.6MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 479.2MB. Max. memory is 16.1GB. [2023-08-30 12:59:52,227 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:59:52,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 530.40ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 45.4MB in the beginning and 52.9MB in the end (delta: -7.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2023-08-30 12:59:52,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.62ms. Allocated memory is still 83.9MB. Free memory was 52.9MB in the beginning and 50.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:59:52,228 INFO L158 Benchmark]: Boogie Preprocessor took 73.32ms. Allocated memory is still 83.9MB. Free memory was 50.4MB in the beginning and 48.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:59:52,228 INFO L158 Benchmark]: RCFGBuilder took 788.75ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 35.4MB in the end (delta: 13.0MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2023-08-30 12:59:52,228 INFO L158 Benchmark]: TraceAbstraction took 11269.28ms. Allocated memory was 83.9MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 34.9MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 563.8MB. Max. memory is 16.1GB. [2023-08-30 12:59:52,229 INFO L158 Benchmark]: Witness Printer took 41.79ms. Allocated memory is still 1.8GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 12:59:52,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 530.40ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 45.4MB in the beginning and 52.9MB in the end (delta: -7.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.62ms. Allocated memory is still 83.9MB. Free memory was 52.9MB in the beginning and 50.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.32ms. Allocated memory is still 83.9MB. Free memory was 50.4MB in the beginning and 48.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 788.75ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 35.4MB in the end (delta: 13.0MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11269.28ms. Allocated memory was 83.9MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 34.9MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 563.8MB. Max. memory is 16.1GB. * Witness Printer took 41.79ms. Allocated memory is still 1.8GB. Free memory was 1.3GB in the beginning and 1.3GB 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: 4.0s, 147 PlacesBefore, 49 PlacesAfterwards, 136 TransitionsBefore, 37 TransitionsAfterwards, 4116 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 108 TotalNumberOfCompositions, 15362 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5301, independent: 4927, independent conditional: 0, independent unconditional: 4927, dependent: 374, dependent conditional: 0, dependent unconditional: 374, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2240, independent: 2153, independent conditional: 0, independent unconditional: 2153, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5301, independent: 2774, independent conditional: 0, independent unconditional: 2774, dependent: 287, dependent conditional: 0, dependent unconditional: 287, unknown: 2240, unknown conditional: 0, unknown unconditional: 2240] , Statistics on independence cache: Total cache size (in pairs): 321, Positive cache size: 293, Positive conditional cache size: 0, Positive unconditional cache size: 293, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 185 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 287 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 267 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 463 IncrementalHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 8 mSDtfsCounter, 463 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 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 12:59:52,256 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