./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix010.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix010.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 7921b56e8fb93a995ae84202df419b3b13e0137d1aac925ef124b626f5414f7b --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 08:38:20,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:38:20,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:38:20,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:38:20,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:38:20,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:38:20,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:38:20,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:38:20,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:38:20,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:38:20,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:38:20,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:38:20,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:38:20,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:38:20,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:38:20,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:38:20,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:38:20,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:38:20,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:38:20,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:38:20,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:38:20,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:38:20,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:38:20,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:38:20,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:38:20,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:38:20,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:38:20,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:38:20,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:38:20,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:38:20,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:38:20,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:38:20,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:38:20,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:38:20,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:38:20,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:38:20,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:38:20,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:38:20,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:38:20,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:38:20,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:38:20,178 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:38:20,210 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:38:20,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:38:20,212 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:38:20,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:38:20,213 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:38:20,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:38:20,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:38:20,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:38:20,214 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:38:20,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:38:20,215 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:38:20,215 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:38:20,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:38:20,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:38:20,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:38:20,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:38:20,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:38:20,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:38:20,216 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:38:20,216 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:38:20,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:38:20,217 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:38:20,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:38:20,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:38:20,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:38:20,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:38:20,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:38:20,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:38:20,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:38:20,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:38:20,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:38:20,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:38:20,219 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:38:20,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:38:20,219 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:38:20,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:38:20,219 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:38:20,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7921b56e8fb93a995ae84202df419b3b13e0137d1aac925ef124b626f5414f7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:38:20,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:38:20,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:38:20,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:38:20,549 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:38:20,550 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:38:20,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix010.oepc.i [2023-08-30 08:38:21,779 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:38:22,020 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:38:22,020 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix010.oepc.i [2023-08-30 08:38:22,038 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf17d4037/21e1f2d462fe430d8cadc82b28ee7c49/FLAG0d63e3371 [2023-08-30 08:38:22,048 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf17d4037/21e1f2d462fe430d8cadc82b28ee7c49 [2023-08-30 08:38:22,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:38:22,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:38:22,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:38:22,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:38:22,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:38:22,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@280f4880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22, skipping insertion in model container [2023-08-30 08:38:22,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:38:22,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:38:22,269 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix010.oepc.i[945,958] [2023-08-30 08:38:22,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:38:22,525 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:38:22,536 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/mix010.oepc.i[945,958] [2023-08-30 08:38:22,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:38:22,652 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:38:22,652 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:38:22,658 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:38:22,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22 WrapperNode [2023-08-30 08:38:22,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:38:22,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:38:22,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:38:22,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:38:22,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,722 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 134 [2023-08-30 08:38:22,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:38:22,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:38:22,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:38:22,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:38:22,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:38:22,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:38:22,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:38:22,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:38:22,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (1/1) ... [2023-08-30 08:38:22,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:38:22,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:38:22,814 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 08:38:22,838 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 08:38:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:38:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:38:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:38:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:38:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:38:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:38:22,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:38:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:38:22,855 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:38:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:38:22,855 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:38:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:38:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:38:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:38:22,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:38:22,857 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 08:38:23,064 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:38:23,066 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:38:23,421 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:38:23,526 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:38:23,527 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:38:23,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:38:23 BoogieIcfgContainer [2023-08-30 08:38:23,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:38:23,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:38:23,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:38:23,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:38:23,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:38:22" (1/3) ... [2023-08-30 08:38:23,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d95d487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:38:23, skipping insertion in model container [2023-08-30 08:38:23,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:38:22" (2/3) ... [2023-08-30 08:38:23,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d95d487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:38:23, skipping insertion in model container [2023-08-30 08:38:23,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:38:23" (3/3) ... [2023-08-30 08:38:23,536 INFO L112 eAbstractionObserver]: Analyzing ICFG mix010.oepc.i [2023-08-30 08:38:23,543 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:38:23,552 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:38:23,552 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 08:38:23,553 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:38:23,608 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:38:23,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 119 transitions, 253 flow [2023-08-30 08:38:23,708 INFO L130 PetriNetUnfolder]: 2/116 cut-off events. [2023-08-30 08:38:23,708 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:38:23,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 116 events. 2/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2023-08-30 08:38:23,714 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 119 transitions, 253 flow [2023-08-30 08:38:23,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 116 transitions, 241 flow [2023-08-30 08:38:23,730 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:38:23,741 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 116 transitions, 241 flow [2023-08-30 08:38:23,745 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 116 transitions, 241 flow [2023-08-30 08:38:23,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 116 transitions, 241 flow [2023-08-30 08:38:23,789 INFO L130 PetriNetUnfolder]: 2/116 cut-off events. [2023-08-30 08:38:23,789 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:38:23,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 116 events. 2/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 83 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2023-08-30 08:38:23,793 INFO L119 LiptonReduction]: Number of co-enabled transitions 2684 [2023-08-30 08:38:27,198 INFO L134 LiptonReduction]: Checked pairs total: 10119 [2023-08-30 08:38:27,198 INFO L136 LiptonReduction]: Total number of compositions: 93 [2023-08-30 08:38:27,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:38:27,216 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;@6d2f7f2b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:38:27,217 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 08:38:27,221 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 08:38:27,221 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:38:27,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:38:27,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:38:27,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:38:27,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:38:27,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1915791932, now seen corresponding path program 1 times [2023-08-30 08:38:27,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:38:27,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679306475] [2023-08-30 08:38:27,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:38:27,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:38:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:38:27,497 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 08:38:27,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:38:27,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679306475] [2023-08-30 08:38:27,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679306475] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:38:27,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:38:27,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:38:27,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427357748] [2023-08-30 08:38:27,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:38:27,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:38:27,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:38:27,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:38:27,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:38:27,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 212 [2023-08-30 08:38:27,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 08:38:27,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:38:27,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 212 [2023-08-30 08:38:27,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:38:27,915 INFO L130 PetriNetUnfolder]: 1457/2317 cut-off events. [2023-08-30 08:38:27,916 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-08-30 08:38:27,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4674 conditions, 2317 events. 1457/2317 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 11756 event pairs, 609 based on Foata normal form. 162/1894 useless extension candidates. Maximal degree in co-relation 4663. Up to 1969 conditions per place. [2023-08-30 08:38:27,936 INFO L137 encePairwiseOnDemand]: 200/212 looper letters, 40 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2023-08-30 08:38:27,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 47 transitions, 197 flow [2023-08-30 08:38:27,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:38:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:38:27,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2023-08-30 08:38:27,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5408805031446541 [2023-08-30 08:38:27,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2023-08-30 08:38:27,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2023-08-30 08:38:27,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:38:27,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2023-08-30 08:38:27,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:38:27,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 212.0) internal successors, (848), 4 states have internal predecessors, (848), 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 08:38:27,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 212.0) internal successors, (848), 4 states have internal predecessors, (848), 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 08:38:27,971 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 73 flow. Second operand 3 states and 344 transitions. [2023-08-30 08:38:27,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 47 transitions, 197 flow [2023-08-30 08:38:27,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 47 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:38:27,976 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 106 flow [2023-08-30 08:38:27,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2023-08-30 08:38:27,982 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2023-08-30 08:38:27,983 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 106 flow [2023-08-30 08:38:27,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 08:38:27,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:38:27,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:38:27,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:38:27,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:38:27,995 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:38:27,996 INFO L85 PathProgramCache]: Analyzing trace with hash -511653139, now seen corresponding path program 1 times [2023-08-30 08:38:27,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:38:27,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142263890] [2023-08-30 08:38:27,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:38:27,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:38:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:38:28,126 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 08:38:28,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:38:28,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142263890] [2023-08-30 08:38:28,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142263890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:38:28,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:38:28,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:38:28,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759436385] [2023-08-30 08:38:28,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:38:28,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:38:28,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:38:28,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:38:28,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:38:28,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 212 [2023-08-30 08:38:28,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 08:38:28,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:38:28,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 212 [2023-08-30 08:38:28,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:38:28,370 INFO L130 PetriNetUnfolder]: 586/1014 cut-off events. [2023-08-30 08:38:28,370 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2023-08-30 08:38:28,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2448 conditions, 1014 events. 586/1014 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4707 event pairs, 221 based on Foata normal form. 68/967 useless extension candidates. Maximal degree in co-relation 2437. Up to 429 conditions per place. [2023-08-30 08:38:28,376 INFO L137 encePairwiseOnDemand]: 201/212 looper letters, 51 selfloop transitions, 10 changer transitions 3/67 dead transitions. [2023-08-30 08:38:28,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 67 transitions, 318 flow [2023-08-30 08:38:28,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:38:28,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:38:28,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2023-08-30 08:38:28,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5377358490566038 [2023-08-30 08:38:28,378 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 456 transitions. [2023-08-30 08:38:28,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 456 transitions. [2023-08-30 08:38:28,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:38:28,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 456 transitions. [2023-08-30 08:38:28,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 08:38:28,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 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 08:38:28,383 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 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 08:38:28,383 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 106 flow. Second operand 4 states and 456 transitions. [2023-08-30 08:38:28,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 67 transitions, 318 flow [2023-08-30 08:38:28,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 67 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:38:28,386 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 164 flow [2023-08-30 08:38:28,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-08-30 08:38:28,387 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2023-08-30 08:38:28,387 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 164 flow [2023-08-30 08:38:28,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 08:38:28,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:38:28,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:38:28,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:38:28,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:38:28,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:38:28,389 INFO L85 PathProgramCache]: Analyzing trace with hash -511653140, now seen corresponding path program 1 times [2023-08-30 08:38:28,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:38:28,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415500017] [2023-08-30 08:38:28,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:38:28,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:38:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:38:28,456 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 08:38:28,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:38:28,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415500017] [2023-08-30 08:38:28,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415500017] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:38:28,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:38:28,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:38:28,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571156756] [2023-08-30 08:38:28,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:38:28,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:38:28,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:38:28,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:38:28,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:38:28,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 212 [2023-08-30 08:38:28,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 08:38:28,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:38:28,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 212 [2023-08-30 08:38:28,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:38:28,645 INFO L130 PetriNetUnfolder]: 481/813 cut-off events. [2023-08-30 08:38:28,646 INFO L131 PetriNetUnfolder]: For 651/651 co-relation queries the response was YES. [2023-08-30 08:38:28,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 813 events. 481/813 cut-off events. For 651/651 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3577 event pairs, 211 based on Foata normal form. 66/860 useless extension candidates. Maximal degree in co-relation 2047. Up to 464 conditions per place. [2023-08-30 08:38:28,651 INFO L137 encePairwiseOnDemand]: 205/212 looper letters, 37 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-08-30 08:38:28,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 44 transitions, 234 flow [2023-08-30 08:38:28,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:38:28,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:38:28,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2023-08-30 08:38:28,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5094339622641509 [2023-08-30 08:38:28,653 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2023-08-30 08:38:28,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2023-08-30 08:38:28,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:38:28,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2023-08-30 08:38:28,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 08:38:28,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 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 08:38:28,657 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 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 08:38:28,657 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 164 flow. Second operand 4 states and 432 transitions. [2023-08-30 08:38:28,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 44 transitions, 234 flow [2023-08-30 08:38:28,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 216 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-30 08:38:28,664 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 112 flow [2023-08-30 08:38:28,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2023-08-30 08:38:28,666 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2023-08-30 08:38:28,668 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 112 flow [2023-08-30 08:38:28,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 08:38:28,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:38:28,669 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] [2023-08-30 08:38:28,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:38:28,670 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:38:28,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:38:28,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1176270902, now seen corresponding path program 1 times [2023-08-30 08:38:28,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:38:28,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880998719] [2023-08-30 08:38:28,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:38:28,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:38:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:38:28,842 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 08:38:28,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:38:28,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880998719] [2023-08-30 08:38:28,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880998719] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:38:28,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:38:28,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:38:28,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660596899] [2023-08-30 08:38:28,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:38:28,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:38:28,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:38:28,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:38:28,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:38:28,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 212 [2023-08-30 08:38:28,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 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 08:38:28,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:38:28,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 212 [2023-08-30 08:38:28,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:38:28,981 INFO L130 PetriNetUnfolder]: 434/704 cut-off events. [2023-08-30 08:38:28,981 INFO L131 PetriNetUnfolder]: For 488/488 co-relation queries the response was YES. [2023-08-30 08:38:28,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1778 conditions, 704 events. 434/704 cut-off events. For 488/488 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3030 event pairs, 199 based on Foata normal form. 17/702 useless extension candidates. Maximal degree in co-relation 1765. Up to 326 conditions per place. [2023-08-30 08:38:28,983 INFO L137 encePairwiseOnDemand]: 204/212 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2023-08-30 08:38:28,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 226 flow [2023-08-30 08:38:28,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:38:28,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:38:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 534 transitions. [2023-08-30 08:38:28,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5037735849056604 [2023-08-30 08:38:28,986 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 534 transitions. [2023-08-30 08:38:28,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 534 transitions. [2023-08-30 08:38:28,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:38:28,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 534 transitions. [2023-08-30 08:38:28,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 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 08:38:28,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 212.0) internal successors, (1272), 6 states have internal predecessors, (1272), 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 08:38:28,990 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 212.0) internal successors, (1272), 6 states have internal predecessors, (1272), 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 08:38:28,990 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 112 flow. Second operand 5 states and 534 transitions. [2023-08-30 08:38:28,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 226 flow [2023-08-30 08:38:28,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 211 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:38:28,992 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-30 08:38:28,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-30 08:38:28,993 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places. [2023-08-30 08:38:28,993 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-30 08:38:28,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 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 08:38:28,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 08:38:28,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 08:38:28,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 08:38:28,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 08:38:28,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 08:38:28,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 08:38:28,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 08:38:28,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 08:38:28,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 08:38:28,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 08:38:28,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 08:38:28,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 08:38:28,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 08:38:28,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 08:38:29,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 08:38:29,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:38:29,000 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 08:38:29,004 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:38:29,005 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:38:29,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:38:29 BasicIcfg [2023-08-30 08:38:29,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:38:29,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:38:29,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:38:29,009 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:38:29,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:38:23" (3/4) ... [2023-08-30 08:38:29,011 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:38:29,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:38:29,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:38:29,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:38:29,019 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 08:38:29,020 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 08:38:29,020 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:38:29,020 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:38:29,049 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:38:29,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:38:29,050 INFO L158 Benchmark]: Toolchain (without parser) took 6999.20ms. Allocated memory was 62.9MB in the beginning and 157.3MB in the end (delta: 94.4MB). Free memory was 38.5MB in the beginning and 55.4MB in the end (delta: -16.9MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. [2023-08-30 08:38:29,050 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:38:29,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 607.52ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 38.3MB in the beginning and 46.5MB in the end (delta: -8.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 08:38:29,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.43ms. Allocated memory is still 77.6MB. Free memory was 46.5MB in the beginning and 44.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:38:29,051 INFO L158 Benchmark]: Boogie Preprocessor took 60.17ms. Allocated memory is still 77.6MB. Free memory was 43.9MB in the beginning and 42.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:38:29,052 INFO L158 Benchmark]: RCFGBuilder took 745.14ms. Allocated memory is still 77.6MB. Free memory was 41.9MB in the beginning and 44.8MB in the end (delta: -2.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-08-30 08:38:29,052 INFO L158 Benchmark]: TraceAbstraction took 5477.29ms. Allocated memory was 77.6MB in the beginning and 157.3MB in the end (delta: 79.7MB). Free memory was 44.1MB in the beginning and 58.5MB in the end (delta: -14.5MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2023-08-30 08:38:29,052 INFO L158 Benchmark]: Witness Printer took 41.53ms. Allocated memory is still 157.3MB. Free memory was 58.5MB in the beginning and 55.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:38:29,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 607.52ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 38.3MB in the beginning and 46.5MB in the end (delta: -8.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.43ms. Allocated memory is still 77.6MB. Free memory was 46.5MB in the beginning and 44.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.17ms. Allocated memory is still 77.6MB. Free memory was 43.9MB in the beginning and 42.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 745.14ms. Allocated memory is still 77.6MB. Free memory was 41.9MB in the beginning and 44.8MB in the end (delta: -2.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5477.29ms. Allocated memory was 77.6MB in the beginning and 157.3MB in the end (delta: 79.7MB). Free memory was 44.1MB in the beginning and 58.5MB in the end (delta: -14.5MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. * Witness Printer took 41.53ms. Allocated memory is still 157.3MB. Free memory was 58.5MB in the beginning and 55.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 124 PlacesBefore, 41 PlacesAfterwards, 116 TransitionsBefore, 32 TransitionsAfterwards, 2684 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 93 TotalNumberOfCompositions, 10119 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3287, independent: 2974, independent conditional: 0, independent unconditional: 2974, dependent: 313, dependent conditional: 0, dependent unconditional: 313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1406, independent: 1360, independent conditional: 0, independent unconditional: 1360, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3287, independent: 1614, independent conditional: 0, independent unconditional: 1614, dependent: 267, dependent conditional: 0, dependent unconditional: 267, unknown: 1406, unknown conditional: 0, unknown unconditional: 1406] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 153, Positive conditional cache size: 0, Positive unconditional cache size: 153, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: 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: 835]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 154 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 281 IncrementalHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 6 mSDtfsCounter, 281 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:38:29,073 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