./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe008_power.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/safe008_power.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 384baf663e8fa66fe4dacec773bc2c5acf71b0d621e6212d04013b3fa3b41d51 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:23:58,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:23:58,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:23:58,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:23:58,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:23:58,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:23:58,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:23:58,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:23:58,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:23:58,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:23:58,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:23:58,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:23:58,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:23:58,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:23:58,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:23:58,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:23:58,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:23:58,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:23:58,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:23:58,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:23:58,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:23:58,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:23:58,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:23:58,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:23:58,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:23:58,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:23:58,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:23:58,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:23:58,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:23:58,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:23:58,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:23:58,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:23:58,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:23:58,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:23:58,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:23:58,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:23:58,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:23:58,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:23:58,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:23:58,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:23:58,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:23:58,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:23:58,424 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:23:58,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:23:58,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:23:58,426 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:23:58,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:23:58,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:23:58,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:23:58,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:23:58,428 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:23:58,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:23:58,429 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:23:58,429 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:23:58,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:23:58,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:23:58,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:23:58,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:23:58,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:23:58,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:23:58,430 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:23:58,431 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:23:58,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:23:58,431 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:23:58,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:23:58,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:23:58,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:23:58,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:23:58,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:23:58,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:23:58,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:23:58,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:23:58,433 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:23:58,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:23:58,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:23:58,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:23:58,434 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:23:58,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:23:58,434 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:23:58,434 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 384baf663e8fa66fe4dacec773bc2c5acf71b0d621e6212d04013b3fa3b41d51 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:23:58,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:23:58,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:23:58,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:23:58,764 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:23:58,764 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:23:58,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_power.opt.i [2023-09-01 05:24:00,034 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:24:00,288 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:24:00,294 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_power.opt.i [2023-09-01 05:24:00,316 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f6cdf01/0eaa92df48294de7b4f031a818b40958/FLAGefaadea68 [2023-09-01 05:24:00,329 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f6cdf01/0eaa92df48294de7b4f031a818b40958 [2023-09-01 05:24:00,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:24:00,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:24:00,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:24:00,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:24:00,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:24:00,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:00,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302f8029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00, skipping insertion in model container [2023-09-01 05:24:00,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:00,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:24:00,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:24:00,527 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/safe008_power.opt.i[951,964] [2023-09-01 05:24:00,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:24:00,730 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:24:00,744 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/safe008_power.opt.i[951,964] [2023-09-01 05:24:00,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:24:00,851 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:24:00,852 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:24:00,857 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:24:00,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00 WrapperNode [2023-09-01 05:24:00,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:24:00,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:24:00,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:24:00,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:24:00,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:00,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:00,940 INFO L138 Inliner]: procedures = 176, calls = 73, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 183 [2023-09-01 05:24:00,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:24:00,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:24:00,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:24:00,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:24:00,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:00,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:00,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:00,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:00,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:00,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:00,994 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:00,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:01,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:24:01,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:24:01,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:24:01,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:24:01,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (1/1) ... [2023-09-01 05:24:01,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:24:01,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:24:01,042 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) [2023-09-01 05:24:01,065 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 [2023-09-01 05:24:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 05:24:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:24:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:24:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:24:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:24:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:24:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:24:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:24:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:24:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:24:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:24:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:24:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:24:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:24:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:24:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:24:01,083 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:24:01,271 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:24:01,273 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:24:01,738 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:24:02,023 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:24:02,024 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:24:02,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:24:02 BoogieIcfgContainer [2023-09-01 05:24:02,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:24:02,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:24:02,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:24:02,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:24:02,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:24:00" (1/3) ... [2023-09-01 05:24:02,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ea3a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:24:02, skipping insertion in model container [2023-09-01 05:24:02,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:24:00" (2/3) ... [2023-09-01 05:24:02,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ea3a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:24:02, skipping insertion in model container [2023-09-01 05:24:02,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:24:02" (3/3) ... [2023-09-01 05:24:02,036 INFO L112 eAbstractionObserver]: Analyzing ICFG safe008_power.opt.i [2023-09-01 05:24:02,044 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:24:02,052 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:24:02,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 05:24:02,053 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:24:02,122 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:24:02,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 131 transitions, 277 flow [2023-09-01 05:24:02,205 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2023-09-01 05:24:02,205 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:24:02,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-09-01 05:24:02,211 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 131 transitions, 277 flow [2023-09-01 05:24:02,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 128 transitions, 265 flow [2023-09-01 05:24:02,234 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:24:02,252 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 128 transitions, 265 flow [2023-09-01 05:24:02,258 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 128 transitions, 265 flow [2023-09-01 05:24:02,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 128 transitions, 265 flow [2023-09-01 05:24:02,301 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2023-09-01 05:24:02,304 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:24:02,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-09-01 05:24:02,307 INFO L119 LiptonReduction]: Number of co-enabled transitions 2376 [2023-09-01 05:24:09,666 INFO L134 LiptonReduction]: Checked pairs total: 8299 [2023-09-01 05:24:09,667 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-09-01 05:24:09,689 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:24:09,697 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;@72da499c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:24:09,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-09-01 05:24:09,715 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-09-01 05:24:09,715 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:24:09,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:24:09,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:24:09,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:24:09,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:24:09,722 INFO L85 PathProgramCache]: Analyzing trace with hash -549461129, now seen corresponding path program 1 times [2023-09-01 05:24:09,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:24:09,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866231782] [2023-09-01 05:24:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:24:09,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:24:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:24:10,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:24:10,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:24:10,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866231782] [2023-09-01 05:24:10,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866231782] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:24:10,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:24:10,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:24:10,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060827800] [2023-09-01 05:24:10,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:24:10,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:24:10,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:24:10,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:24:10,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:24:10,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 240 [2023-09-01 05:24:10,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-09-01 05:24:10,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:24:10,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 240 [2023-09-01 05:24:10,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:24:10,545 INFO L130 PetriNetUnfolder]: 1419/2136 cut-off events. [2023-09-01 05:24:10,546 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-09-01 05:24:10,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4307 conditions, 2136 events. 1419/2136 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 9884 event pairs, 1419 based on Foata normal form. 0/1746 useless extension candidates. Maximal degree in co-relation 4296. Up to 2092 conditions per place. [2023-09-01 05:24:10,562 INFO L137 encePairwiseOnDemand]: 236/240 looper letters, 21 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-09-01 05:24:10,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 24 transitions, 101 flow [2023-09-01 05:24:10,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:24:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:24:10,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2023-09-01 05:24:10,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4847222222222222 [2023-09-01 05:24:10,575 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2023-09-01 05:24:10,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2023-09-01 05:24:10,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:24:10,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2023-09-01 05:24:10,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2023-09-01 05:24:10,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-09-01 05:24:10,587 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-09-01 05:24:10,589 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 63 flow. Second operand 3 states and 349 transitions. [2023-09-01 05:24:10,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 24 transitions, 101 flow [2023-09-01 05:24:10,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 24 transitions, 98 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:24:10,594 INFO L231 Difference]: Finished difference. Result has 33 places, 24 transitions, 56 flow [2023-09-01 05:24:10,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=24} [2023-09-01 05:24:10,598 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -4 predicate places. [2023-09-01 05:24:10,599 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 56 flow [2023-09-01 05:24:10,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-09-01 05:24:10,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:24:10,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:24:10,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:24:10,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:24:10,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:24:10,601 INFO L85 PathProgramCache]: Analyzing trace with hash -549461128, now seen corresponding path program 1 times [2023-09-01 05:24:10,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:24:10,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769400020] [2023-09-01 05:24:10,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:24:10,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:24:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:24:10,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:24:10,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:24:10,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769400020] [2023-09-01 05:24:10,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769400020] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:24:10,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:24:10,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:24:10,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832964544] [2023-09-01 05:24:10,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:24:10,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:24:10,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:24:10,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:24:10,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:24:10,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 240 [2023-09-01 05:24:10,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-09-01 05:24:10,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:24:10,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 240 [2023-09-01 05:24:10,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:24:11,020 INFO L130 PetriNetUnfolder]: 901/1412 cut-off events. [2023-09-01 05:24:11,020 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:24:11,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2852 conditions, 1412 events. 901/1412 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6409 event pairs, 333 based on Foata normal form. 0/1276 useless extension candidates. Maximal degree in co-relation 2846. Up to 899 conditions per place. [2023-09-01 05:24:11,028 INFO L137 encePairwiseOnDemand]: 233/240 looper letters, 35 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2023-09-01 05:24:11,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 41 transitions, 172 flow [2023-09-01 05:24:11,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:24:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:24:11,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-09-01 05:24:11,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5083333333333333 [2023-09-01 05:24:11,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-09-01 05:24:11,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-09-01 05:24:11,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:24:11,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-09-01 05:24:11,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2023-09-01 05:24:11,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-09-01 05:24:11,052 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-09-01 05:24:11,052 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 56 flow. Second operand 3 states and 366 transitions. [2023-09-01 05:24:11,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 41 transitions, 172 flow [2023-09-01 05:24:11,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 171 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:24:11,054 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 85 flow [2023-09-01 05:24:11,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2023-09-01 05:24:11,055 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2023-09-01 05:24:11,055 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 85 flow [2023-09-01 05:24:11,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-09-01 05:24:11,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:24:11,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:24:11,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:24:11,057 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:24:11,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:24:11,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1419953850, now seen corresponding path program 1 times [2023-09-01 05:24:11,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:24:11,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493416124] [2023-09-01 05:24:11,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:24:11,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:24:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:24:11,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:24:11,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:24:11,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493416124] [2023-09-01 05:24:11,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493416124] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:24:11,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:24:11,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:24:11,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747605256] [2023-09-01 05:24:11,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:24:11,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:24:11,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:24:11,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:24:11,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:24:11,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 240 [2023-09-01 05:24:11,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 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) [2023-09-01 05:24:11,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:24:11,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 240 [2023-09-01 05:24:11,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:24:11,597 INFO L130 PetriNetUnfolder]: 736/1151 cut-off events. [2023-09-01 05:24:11,598 INFO L131 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2023-09-01 05:24:11,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2732 conditions, 1151 events. 736/1151 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5076 event pairs, 305 based on Foata normal form. 0/1123 useless extension candidates. Maximal degree in co-relation 2724. Up to 482 conditions per place. [2023-09-01 05:24:11,604 INFO L137 encePairwiseOnDemand]: 233/240 looper letters, 44 selfloop transitions, 7 changer transitions 3/56 dead transitions. [2023-09-01 05:24:11,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 56 transitions, 263 flow [2023-09-01 05:24:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:24:11,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:24:11,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 489 transitions. [2023-09-01 05:24:11,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509375 [2023-09-01 05:24:11,606 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 489 transitions. [2023-09-01 05:24:11,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 489 transitions. [2023-09-01 05:24:11,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:24:11,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 489 transitions. [2023-09-01 05:24:11,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 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) [2023-09-01 05:24:11,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-09-01 05:24:11,611 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-09-01 05:24:11,611 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 85 flow. Second operand 4 states and 489 transitions. [2023-09-01 05:24:11,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 56 transitions, 263 flow [2023-09-01 05:24:11,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 56 transitions, 259 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:24:11,614 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 107 flow [2023-09-01 05:24:11,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=107, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-09-01 05:24:11,615 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2023-09-01 05:24:11,615 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 107 flow [2023-09-01 05:24:11,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 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) [2023-09-01 05:24:11,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:24:11,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:24:11,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:24:11,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:24:11,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:24:11,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2092080897, now seen corresponding path program 1 times [2023-09-01 05:24:11,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:24:11,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746150114] [2023-09-01 05:24:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:24:11,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:24:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:24:11,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:24:11,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:24:11,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746150114] [2023-09-01 05:24:11,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746150114] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:24:11,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:24:11,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:24:11,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177076034] [2023-09-01 05:24:11,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:24:11,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:24:11,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:24:11,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:24:11,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:24:11,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 240 [2023-09-01 05:24:11,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 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) [2023-09-01 05:24:11,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:24:11,748 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 240 [2023-09-01 05:24:11,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:24:12,042 INFO L130 PetriNetUnfolder]: 716/1115 cut-off events. [2023-09-01 05:24:12,042 INFO L131 PetriNetUnfolder]: For 783/783 co-relation queries the response was YES. [2023-09-01 05:24:12,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 1115 events. 716/1115 cut-off events. For 783/783 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4916 event pairs, 305 based on Foata normal form. 12/1111 useless extension candidates. Maximal degree in co-relation 2796. Up to 482 conditions per place. [2023-09-01 05:24:12,045 INFO L137 encePairwiseOnDemand]: 233/240 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2023-09-01 05:24:12,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 50 transitions, 243 flow [2023-09-01 05:24:12,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:24:12,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:24:12,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 591 transitions. [2023-09-01 05:24:12,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4925 [2023-09-01 05:24:12,051 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 591 transitions. [2023-09-01 05:24:12,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 591 transitions. [2023-09-01 05:24:12,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:24:12,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 591 transitions. [2023-09-01 05:24:12,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 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) [2023-09-01 05:24:12,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-09-01 05:24:12,057 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-09-01 05:24:12,057 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 107 flow. Second operand 5 states and 591 transitions. [2023-09-01 05:24:12,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 50 transitions, 243 flow [2023-09-01 05:24:12,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 219 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-09-01 05:24:12,060 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-09-01 05:24:12,060 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=65, 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} [2023-09-01 05:24:12,061 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2023-09-01 05:24:12,061 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-09-01 05:24:12,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 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) [2023-09-01 05:24:12,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-09-01 05:24:12,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-09-01 05:24:12,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-09-01 05:24:12,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-09-01 05:24:12,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-09-01 05:24:12,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-09-01 05:24:12,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-09-01 05:24:12,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-09-01 05:24:12,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-09-01 05:24:12,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-09-01 05:24:12,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-09-01 05:24:12,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-09-01 05:24:12,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-09-01 05:24:12,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-09-01 05:24:12,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-09-01 05:24:12,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:24:12,073 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-01 05:24:12,080 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:24:12,080 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:24:12,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:24:12 BasicIcfg [2023-09-01 05:24:12,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:24:12,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:24:12,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:24:12,088 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:24:12,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:24:02" (3/4) ... [2023-09-01 05:24:12,090 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:24:12,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:24:12,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:24:12,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:24:12,100 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2023-09-01 05:24:12,100 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-09-01 05:24:12,100 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 05:24:12,101 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:24:12,149 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:24:12,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:24:12,150 INFO L158 Benchmark]: Toolchain (without parser) took 11817.84ms. Allocated memory was 98.6MB in the beginning and 213.9MB in the end (delta: 115.3MB). Free memory was 74.5MB in the beginning and 117.7MB in the end (delta: -43.2MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2023-09-01 05:24:12,150 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 49.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:24:12,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.44ms. Allocated memory is still 98.6MB. Free memory was 74.3MB in the beginning and 73.3MB in the end (delta: 1.0MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2023-09-01 05:24:12,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.93ms. Allocated memory is still 98.6MB. Free memory was 73.3MB in the beginning and 70.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:24:12,151 INFO L158 Benchmark]: Boogie Preprocessor took 64.65ms. Allocated memory is still 98.6MB. Free memory was 70.7MB in the beginning and 68.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:24:12,151 INFO L158 Benchmark]: RCFGBuilder took 1018.89ms. Allocated memory is still 98.6MB. Free memory was 68.0MB in the beginning and 60.3MB in the end (delta: 7.7MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2023-09-01 05:24:12,151 INFO L158 Benchmark]: TraceAbstraction took 10057.55ms. Allocated memory was 98.6MB in the beginning and 213.9MB in the end (delta: 115.3MB). Free memory was 59.6MB in the beginning and 120.8MB in the end (delta: -61.2MB). Peak memory consumption was 132.4MB. Max. memory is 16.1GB. [2023-09-01 05:24:12,152 INFO L158 Benchmark]: Witness Printer took 61.72ms. Allocated memory is still 213.9MB. Free memory was 120.8MB in the beginning and 117.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:24:12,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 49.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.44ms. Allocated memory is still 98.6MB. Free memory was 74.3MB in the beginning and 73.3MB in the end (delta: 1.0MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.93ms. Allocated memory is still 98.6MB. Free memory was 73.3MB in the beginning and 70.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.65ms. Allocated memory is still 98.6MB. Free memory was 70.7MB in the beginning and 68.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1018.89ms. Allocated memory is still 98.6MB. Free memory was 68.0MB in the beginning and 60.3MB in the end (delta: 7.7MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10057.55ms. Allocated memory was 98.6MB in the beginning and 213.9MB in the end (delta: 115.3MB). Free memory was 59.6MB in the beginning and 120.8MB in the end (delta: -61.2MB). Peak memory consumption was 132.4MB. Max. memory is 16.1GB. * Witness Printer took 61.72ms. Allocated memory is still 213.9MB. Free memory was 120.8MB in the beginning and 117.7MB 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: 7.4s, 136 PlacesBefore, 37 PlacesAfterwards, 128 TransitionsBefore, 27 TransitionsAfterwards, 2376 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 109 TotalNumberOfCompositions, 8299 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2949, independent: 2666, independent conditional: 0, independent unconditional: 2666, dependent: 283, dependent conditional: 0, dependent unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1318, independent: 1253, independent conditional: 0, independent unconditional: 1253, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2949, independent: 1413, independent conditional: 0, independent unconditional: 1413, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 1318, unknown conditional: 0, unknown unconditional: 1318] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 122, Positive conditional cache size: 0, Positive unconditional cache size: 122, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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, 163 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: 9.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 117 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 183 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 6 mSDtfsCounter, 183 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 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! [2023-09-01 05:24:12,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE