./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix044.opt.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/mix044.opt.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 bb408c890b0d52a937687fd58d564d57121120b7f4647156375768e776a678b4 --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 08:44:24,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:44:24,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:44:24,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:44:24,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:44:24,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:44:24,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:44:24,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:44:24,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:44:24,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:44:24,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:44:24,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:44:24,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:44:24,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:44:24,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:44:24,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:44:24,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:44:24,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:44:24,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:44:24,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:44:24,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:44:24,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:44:24,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:44:24,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:44:24,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:44:24,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:44:24,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:44:24,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:44:24,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:44:24,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:44:24,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:44:24,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:44:24,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:44:24,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:44:24,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:44:24,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:44:24,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:44:24,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:44:24,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:44:24,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:44:24,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:44:24,193 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:44:24,231 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:44:24,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:44:24,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:44:24,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:44:24,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:44:24,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:44:24,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:44:24,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:44:24,235 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:44:24,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:44:24,236 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:44:24,236 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:44:24,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:44:24,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:44:24,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:44:24,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:44:24,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:44:24,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:44:24,238 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:44:24,238 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:44:24,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:44:24,239 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:44:24,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:44:24,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:44:24,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:44:24,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:44:24,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:44:24,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:44:24,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:44:24,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:44:24,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:44:24,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:44:24,241 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:44:24,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:44:24,242 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:44:24,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:44:24,242 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:44:24,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb408c890b0d52a937687fd58d564d57121120b7f4647156375768e776a678b4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:44:24,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:44:24,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:44:24,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:44:24,592 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:44:24,593 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:44:24,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix044.opt.i [2023-08-30 08:44:25,730 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:44:26,004 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:44:26,008 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044.opt.i [2023-08-30 08:44:26,027 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a433dc1e/b848ed121f7d49e59cca675772b7b56e/FLAG498eaf57c [2023-08-30 08:44:26,044 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a433dc1e/b848ed121f7d49e59cca675772b7b56e [2023-08-30 08:44:26,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:44:26,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:44:26,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:44:26,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:44:26,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:44:26,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b108d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26, skipping insertion in model container [2023-08-30 08:44:26,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:44:26,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:44:26,226 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/mix044.opt.i[944,957] [2023-08-30 08:44:26,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:44:26,418 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:44:26,430 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/mix044.opt.i[944,957] [2023-08-30 08:44:26,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:44:26,537 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:44:26,538 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:44:26,543 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:44:26,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26 WrapperNode [2023-08-30 08:44:26,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:44:26,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:44:26,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:44:26,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:44:26,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,615 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 170 [2023-08-30 08:44:26,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:44:26,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:44:26,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:44:26,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:44:26,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,660 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:44:26,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:44:26,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:44:26,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:44:26,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (1/1) ... [2023-08-30 08:44:26,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:44:26,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:44:26,698 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 08:44:26,711 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 08:44:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:44:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:44:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:44:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:44:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:44:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:44:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:44:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:44:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:44:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:44:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:44:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 08:44:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 08:44:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:44:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:44:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:44:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:44:26,739 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 08:44:26,906 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:44:26,907 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:44:27,257 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:44:27,377 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:44:27,377 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:44:27,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:44:27 BoogieIcfgContainer [2023-08-30 08:44:27,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:44:27,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:44:27,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:44:27,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:44:27,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:44:26" (1/3) ... [2023-08-30 08:44:27,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371d80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:44:27, skipping insertion in model container [2023-08-30 08:44:27,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:44:26" (2/3) ... [2023-08-30 08:44:27,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371d80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:44:27, skipping insertion in model container [2023-08-30 08:44:27,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:44:27" (3/3) ... [2023-08-30 08:44:27,387 INFO L112 eAbstractionObserver]: Analyzing ICFG mix044.opt.i [2023-08-30 08:44:27,393 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:44:27,401 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:44:27,401 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 08:44:27,401 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:44:27,467 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:44:27,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2023-08-30 08:44:27,570 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2023-08-30 08:44:27,570 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:44:27,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 08:44:27,576 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2023-08-30 08:44:27,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2023-08-30 08:44:27,586 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:44:27,604 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 132 transitions, 276 flow [2023-08-30 08:44:27,609 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 132 transitions, 276 flow [2023-08-30 08:44:27,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 276 flow [2023-08-30 08:44:27,642 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2023-08-30 08:44:27,643 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:44:27,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 08:44:27,646 INFO L119 LiptonReduction]: Number of co-enabled transitions 3812 [2023-08-30 08:44:31,805 INFO L134 LiptonReduction]: Checked pairs total: 14994 [2023-08-30 08:44:31,806 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-30 08:44:31,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:44:31,828 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;@6d60913a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:44:31,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 08:44:31,832 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 08:44:31,832 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:44:31,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:44:31,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:44:31,833 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 08:44:31,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:44:31,837 INFO L85 PathProgramCache]: Analyzing trace with hash 538787649, now seen corresponding path program 1 times [2023-08-30 08:44:31,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:44:31,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948644751] [2023-08-30 08:44:31,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:44:31,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:44:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:44:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:44:32,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:44:32,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948644751] [2023-08-30 08:44:32,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948644751] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:44:32,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:44:32,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:44:32,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914642660] [2023-08-30 08:44:32,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:44:32,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:44:32,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:44:32,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:44:32,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:44:32,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 239 [2023-08-30 08:44:32,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:32,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:44:32,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 239 [2023-08-30 08:44:32,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:44:33,581 INFO L130 PetriNetUnfolder]: 9335/13079 cut-off events. [2023-08-30 08:44:33,582 INFO L131 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2023-08-30 08:44:33,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26331 conditions, 13079 events. 9335/13079 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 796. Compared 79584 event pairs, 4283 based on Foata normal form. 618/9048 useless extension candidates. Maximal degree in co-relation 26319. Up to 12681 conditions per place. [2023-08-30 08:44:33,713 INFO L137 encePairwiseOnDemand]: 224/239 looper letters, 45 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2023-08-30 08:44:33,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 229 flow [2023-08-30 08:44:33,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:44:33,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:44:33,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2023-08-30 08:44:33,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5495118549511855 [2023-08-30 08:44:33,730 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2023-08-30 08:44:33,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2023-08-30 08:44:33,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:44:33,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2023-08-30 08:44:33,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:33,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:33,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:33,746 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 86 flow. Second operand 3 states and 394 transitions. [2023-08-30 08:44:33,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 229 flow [2023-08-30 08:44:33,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 222 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:44:33,754 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 129 flow [2023-08-30 08:44:33,756 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, 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=129, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-30 08:44:33,759 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 08:44:33,762 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 129 flow [2023-08-30 08:44:33,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:33,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:44:33,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:44:33,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:44:33,764 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:44:33,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:44:33,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1384917989, now seen corresponding path program 1 times [2023-08-30 08:44:33,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:44:33,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138692848] [2023-08-30 08:44:33,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:44:33,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:44:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:44:33,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:44:33,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:44:33,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138692848] [2023-08-30 08:44:33,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138692848] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:44:33,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:44:33,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:44:33,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498256426] [2023-08-30 08:44:33,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:44:33,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:44:33,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:44:33,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:44:33,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:44:33,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 239 [2023-08-30 08:44:33,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:33,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:44:33,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 239 [2023-08-30 08:44:33,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:44:34,579 INFO L130 PetriNetUnfolder]: 4997/7065 cut-off events. [2023-08-30 08:44:34,579 INFO L131 PetriNetUnfolder]: For 673/673 co-relation queries the response was YES. [2023-08-30 08:44:34,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17614 conditions, 7065 events. 4997/7065 cut-off events. For 673/673 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 39156 event pairs, 1787 based on Foata normal form. 0/5718 useless extension candidates. Maximal degree in co-relation 17603. Up to 6666 conditions per place. [2023-08-30 08:44:34,621 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 41 selfloop transitions, 5 changer transitions 0/50 dead transitions. [2023-08-30 08:44:34,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 50 transitions, 239 flow [2023-08-30 08:44:34,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:44:34,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:44:34,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 494 transitions. [2023-08-30 08:44:34,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5167364016736402 [2023-08-30 08:44:34,624 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 494 transitions. [2023-08-30 08:44:34,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 494 transitions. [2023-08-30 08:44:34,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:44:34,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 494 transitions. [2023-08-30 08:44:34,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:34,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:34,629 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:34,629 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 129 flow. Second operand 4 states and 494 transitions. [2023-08-30 08:44:34,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 50 transitions, 239 flow [2023-08-30 08:44:34,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:44:34,632 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 118 flow [2023-08-30 08:44:34,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2023-08-30 08:44:34,633 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-08-30 08:44:34,633 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 118 flow [2023-08-30 08:44:34,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:34,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:44:34,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:44:34,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:44:34,634 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 08:44:34,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:44:34,636 INFO L85 PathProgramCache]: Analyzing trace with hash -25215822, now seen corresponding path program 1 times [2023-08-30 08:44:34,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:44:34,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901443036] [2023-08-30 08:44:34,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:44:34,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:44:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:44:34,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:44:34,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:44:34,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901443036] [2023-08-30 08:44:34,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901443036] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:44:34,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:44:34,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:44:34,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768300965] [2023-08-30 08:44:34,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:44:34,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:44:34,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:44:34,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:44:34,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:44:34,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 239 [2023-08-30 08:44:34,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:34,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:44:34,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 239 [2023-08-30 08:44:34,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:44:35,097 INFO L130 PetriNetUnfolder]: 1888/2864 cut-off events. [2023-08-30 08:44:35,097 INFO L131 PetriNetUnfolder]: For 655/655 co-relation queries the response was YES. [2023-08-30 08:44:35,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7102 conditions, 2864 events. 1888/2864 cut-off events. For 655/655 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 14450 event pairs, 521 based on Foata normal form. 76/2633 useless extension candidates. Maximal degree in co-relation 7090. Up to 1834 conditions per place. [2023-08-30 08:44:35,112 INFO L137 encePairwiseOnDemand]: 229/239 looper letters, 53 selfloop transitions, 9 changer transitions 0/66 dead transitions. [2023-08-30 08:44:35,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 66 transitions, 320 flow [2023-08-30 08:44:35,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:44:35,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:44:35,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 511 transitions. [2023-08-30 08:44:35,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5345188284518828 [2023-08-30 08:44:35,114 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 511 transitions. [2023-08-30 08:44:35,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 511 transitions. [2023-08-30 08:44:35,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:44:35,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 511 transitions. [2023-08-30 08:44:35,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,119 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,119 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 118 flow. Second operand 4 states and 511 transitions. [2023-08-30 08:44:35,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 66 transitions, 320 flow [2023-08-30 08:44:35,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 66 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:44:35,122 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 172 flow [2023-08-30 08:44:35,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-30 08:44:35,123 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 08:44:35,123 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 172 flow [2023-08-30 08:44:35,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:44:35,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:44:35,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:44:35,124 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 08:44:35,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:44:35,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1139074199, now seen corresponding path program 1 times [2023-08-30 08:44:35,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:44:35,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624147459] [2023-08-30 08:44:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:44:35,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:44:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:44:35,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:44:35,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:44:35,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624147459] [2023-08-30 08:44:35,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624147459] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:44:35,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:44:35,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:44:35,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264880884] [2023-08-30 08:44:35,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:44:35,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:44:35,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:44:35,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:44:35,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:44:35,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 239 [2023-08-30 08:44:35,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:44:35,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 239 [2023-08-30 08:44:35,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:44:35,497 INFO L130 PetriNetUnfolder]: 1101/1661 cut-off events. [2023-08-30 08:44:35,497 INFO L131 PetriNetUnfolder]: For 1116/1116 co-relation queries the response was YES. [2023-08-30 08:44:35,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4874 conditions, 1661 events. 1101/1661 cut-off events. For 1116/1116 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7290 event pairs, 255 based on Foata normal form. 44/1674 useless extension candidates. Maximal degree in co-relation 4861. Up to 632 conditions per place. [2023-08-30 08:44:35,506 INFO L137 encePairwiseOnDemand]: 229/239 looper letters, 59 selfloop transitions, 13 changer transitions 4/80 dead transitions. [2023-08-30 08:44:35,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 80 transitions, 432 flow [2023-08-30 08:44:35,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:44:35,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:44:35,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 636 transitions. [2023-08-30 08:44:35,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5322175732217573 [2023-08-30 08:44:35,509 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 636 transitions. [2023-08-30 08:44:35,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 636 transitions. [2023-08-30 08:44:35,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:44:35,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 636 transitions. [2023-08-30 08:44:35,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,515 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,515 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 172 flow. Second operand 5 states and 636 transitions. [2023-08-30 08:44:35,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 80 transitions, 432 flow [2023-08-30 08:44:35,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 80 transitions, 414 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 08:44:35,519 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 198 flow [2023-08-30 08:44:35,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=154, 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=198, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2023-08-30 08:44:35,520 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-08-30 08:44:35,520 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 198 flow [2023-08-30 08:44:35,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:44:35,521 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] [2023-08-30 08:44:35,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:44:35,522 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 08:44:35,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:44:35,522 INFO L85 PathProgramCache]: Analyzing trace with hash -2129390399, now seen corresponding path program 1 times [2023-08-30 08:44:35,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:44:35,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124102514] [2023-08-30 08:44:35,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:44:35,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:44:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:44:35,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:44:35,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:44:35,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124102514] [2023-08-30 08:44:35,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124102514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:44:35,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:44:35,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:44:35,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874272385] [2023-08-30 08:44:35,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:44:35,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:44:35,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:44:35,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:44:35,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:44:35,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 239 [2023-08-30 08:44:35,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 198 flow. Second operand has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:44:35,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 239 [2023-08-30 08:44:35,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:44:35,887 INFO L130 PetriNetUnfolder]: 1030/1516 cut-off events. [2023-08-30 08:44:35,887 INFO L131 PetriNetUnfolder]: For 1360/1360 co-relation queries the response was YES. [2023-08-30 08:44:35,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4587 conditions, 1516 events. 1030/1516 cut-off events. For 1360/1360 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6581 event pairs, 235 based on Foata normal form. 19/1528 useless extension candidates. Maximal degree in co-relation 4573. Up to 632 conditions per place. [2023-08-30 08:44:35,892 INFO L137 encePairwiseOnDemand]: 229/239 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2023-08-30 08:44:35,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 68 transitions, 364 flow [2023-08-30 08:44:35,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:44:35,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:44:35,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 735 transitions. [2023-08-30 08:44:35,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125523012552301 [2023-08-30 08:44:35,895 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 735 transitions. [2023-08-30 08:44:35,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 735 transitions. [2023-08-30 08:44:35,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:44:35,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 735 transitions. [2023-08-30 08:44:35,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,902 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,904 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 198 flow. Second operand 6 states and 735 transitions. [2023-08-30 08:44:35,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 68 transitions, 364 flow [2023-08-30 08:44:35,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 68 transitions, 309 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 08:44:35,921 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2023-08-30 08:44:35,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2023-08-30 08:44:35,924 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -7 predicate places. [2023-08-30 08:44:35,924 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2023-08-30 08:44:35,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:44:35,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 08:44:35,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 08:44:35,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 08:44:35,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 08:44:35,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 08:44:35,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 08:44:35,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 08:44:35,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 08:44:35,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 08:44:35,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 08:44:35,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 08:44:35,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 08:44:35,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 08:44:35,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 08:44:35,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 08:44:35,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 08:44:35,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 08:44:35,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 08:44:35,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 08:44:35,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 08:44:35,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:44:35,932 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 08:44:35,937 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:44:35,937 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:44:35,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:44:35 BasicIcfg [2023-08-30 08:44:35,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:44:35,940 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:44:35,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:44:35,941 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:44:35,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:44:27" (3/4) ... [2023-08-30 08:44:35,943 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:44:35,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:44:35,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:44:35,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:44:35,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 08:44:35,952 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-08-30 08:44:35,952 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-30 08:44:35,952 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 08:44:35,953 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:44:35,986 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:44:35,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:44:35,987 INFO L158 Benchmark]: Toolchain (without parser) took 9939.13ms. Allocated memory was 81.8MB in the beginning and 889.2MB in the end (delta: 807.4MB). Free memory was 58.2MB in the beginning and 385.7MB in the end (delta: -327.5MB). Peak memory consumption was 482.2MB. Max. memory is 16.1GB. [2023-08-30 08:44:35,988 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 34.4MB in the beginning and 34.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:44:35,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.07ms. Allocated memory is still 81.8MB. Free memory was 58.0MB in the beginning and 54.6MB in the end (delta: 3.4MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-08-30 08:44:35,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.19ms. Allocated memory is still 81.8MB. Free memory was 54.6MB in the beginning and 51.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:44:35,989 INFO L158 Benchmark]: Boogie Preprocessor took 49.12ms. Allocated memory is still 81.8MB. Free memory was 51.8MB in the beginning and 50.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:44:35,989 INFO L158 Benchmark]: RCFGBuilder took 710.16ms. Allocated memory is still 81.8MB. Free memory was 49.7MB in the beginning and 39.4MB in the end (delta: 10.3MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-08-30 08:44:35,989 INFO L158 Benchmark]: TraceAbstraction took 8558.94ms. Allocated memory was 81.8MB in the beginning and 889.2MB in the end (delta: 807.4MB). Free memory was 39.0MB in the beginning and 388.8MB in the end (delta: -349.9MB). Peak memory consumption was 457.2MB. Max. memory is 16.1GB. [2023-08-30 08:44:35,990 INFO L158 Benchmark]: Witness Printer took 46.54ms. Allocated memory is still 889.2MB. Free memory was 388.8MB in the beginning and 385.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:44:35,991 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 56.6MB. Free memory was 34.4MB in the beginning and 34.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.07ms. Allocated memory is still 81.8MB. Free memory was 58.0MB in the beginning and 54.6MB in the end (delta: 3.4MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.19ms. Allocated memory is still 81.8MB. Free memory was 54.6MB in the beginning and 51.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.12ms. Allocated memory is still 81.8MB. Free memory was 51.8MB in the beginning and 50.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 710.16ms. Allocated memory is still 81.8MB. Free memory was 49.7MB in the beginning and 39.4MB in the end (delta: 10.3MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8558.94ms. Allocated memory was 81.8MB in the beginning and 889.2MB in the end (delta: 807.4MB). Free memory was 39.0MB in the beginning and 388.8MB in the end (delta: -349.9MB). Peak memory consumption was 457.2MB. Max. memory is 16.1GB. * Witness Printer took 46.54ms. Allocated memory is still 889.2MB. Free memory was 388.8MB in the beginning and 385.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 143 PlacesBefore, 49 PlacesAfterwards, 132 TransitionsBefore, 37 TransitionsAfterwards, 3812 CoEnabledTransitionPairs, 8 FixpointIterations, 43 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 14994 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7739, independent: 7343, independent conditional: 0, independent unconditional: 7343, dependent: 396, dependent conditional: 0, dependent unconditional: 396, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2018, independent: 1967, independent conditional: 0, independent unconditional: 1967, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7739, independent: 5376, independent conditional: 0, independent unconditional: 5376, dependent: 345, dependent conditional: 0, dependent unconditional: 345, unknown: 2018, unknown conditional: 0, unknown unconditional: 2018] , Statistics on independence cache: Total cache size (in pairs): 310, Positive cache size: 284, Positive conditional cache size: 0, Positive unconditional cache size: 284, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: 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, 179 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: 8.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 236 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 210 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 407 IncrementalHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 7 mSDtfsCounter, 407 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=198occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 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 08:44:36,012 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