./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe009_power.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_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 be536b3b382c4e63adbabc11deb06983f35dbd290b78e0d42f1a068990873986 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:03:10,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:03:10,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:03:10,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:03:10,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:03:10,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:03:10,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:03:10,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:03:10,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:03:10,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:03:10,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:03:10,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:03:10,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:03:10,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:03:10,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:03:10,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:03:10,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:03:10,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:03:10,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:03:10,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:03:10,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:03:10,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:03:10,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:03:10,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:03:10,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:03:10,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:03:10,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:03:10,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:03:10,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:03:10,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:03:10,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:03:10,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:03:10,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:03:10,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:03:10,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:03:10,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:03:10,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:03:10,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:03:10,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:03:10,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:03:10,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:03:10,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:03:10,516 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:03:10,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:03:10,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:03:10,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:03:10,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:03:10,519 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:03:10,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:03:10,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:03:10,520 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:03:10,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:03:10,521 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:03:10,521 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:03:10,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:03:10,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:03:10,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:03:10,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:03:10,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:03:10,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:03:10,523 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:03:10,523 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:03:10,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:03:10,523 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:03:10,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:03:10,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:03:10,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:03:10,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:03:10,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:03:10,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:03:10,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:03:10,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:03:10,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:03:10,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:03:10,526 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:03:10,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:03:10,526 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:03:10,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:03:10,527 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:03:10,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be536b3b382c4e63adbabc11deb06983f35dbd290b78e0d42f1a068990873986 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:03:10,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:03:10,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:03:10,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:03:10,816 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:03:10,817 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:03:10,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_power.opt.i [2023-08-30 13:03:11,924 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:03:12,186 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:03:12,187 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_power.opt.i [2023-08-30 13:03:12,197 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18cb004a8/c391573399774ab4a030dbb0473de5ed/FLAG22ef282bc [2023-08-30 13:03:12,211 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18cb004a8/c391573399774ab4a030dbb0473de5ed [2023-08-30 13:03:12,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:03:12,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:03:12,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:03:12,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:03:12,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:03:12,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7647cd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12, skipping insertion in model container [2023-08-30 13:03:12,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:03:12,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:03:12,381 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/safe009_power.opt.i[951,964] [2023-08-30 13:03:12,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:03:12,629 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:03:12,641 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/safe009_power.opt.i[951,964] [2023-08-30 13:03:12,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:03:12,742 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:03:12,742 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:03:12,748 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:03:12,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12 WrapperNode [2023-08-30 13:03:12,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:03:12,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:03:12,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:03:12,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:03:12,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,829 INFO L138 Inliner]: procedures = 176, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 182 [2023-08-30 13:03:12,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:03:12,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:03:12,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:03:12,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:03:12,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,884 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:03:12,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:03:12,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:03:12,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:03:12,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (1/1) ... [2023-08-30 13:03:12,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:03:12,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:03:12,940 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 13:03:12,955 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 13:03:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:03:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:03:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:03:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:03:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:03:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:03:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:03:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:03:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:03:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:03:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:03:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:03:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:03:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:03:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:03:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:03:12,989 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 13:03:13,173 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:03:13,174 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:03:13,632 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:03:13,989 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:03:13,989 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:03:13,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:13 BoogieIcfgContainer [2023-08-30 13:03:13,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:03:13,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:03:13,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:03:13,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:03:13,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:03:12" (1/3) ... [2023-08-30 13:03:13,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbbdeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:03:13, skipping insertion in model container [2023-08-30 13:03:13,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:12" (2/3) ... [2023-08-30 13:03:13,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbbdeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:03:13, skipping insertion in model container [2023-08-30 13:03:13,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:13" (3/3) ... [2023-08-30 13:03:13,998 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_power.opt.i [2023-08-30 13:03:14,007 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:03:14,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:03:14,017 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 13:03:14,017 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:03:14,102 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:03:14,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 129 transitions, 273 flow [2023-08-30 13:03:14,209 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2023-08-30 13:03:14,210 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:14,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-08-30 13:03:14,216 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 129 transitions, 273 flow [2023-08-30 13:03:14,225 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 126 transitions, 261 flow [2023-08-30 13:03:14,228 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:03:14,243 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 126 transitions, 261 flow [2023-08-30 13:03:14,246 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 126 transitions, 261 flow [2023-08-30 13:03:14,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 126 transitions, 261 flow [2023-08-30 13:03:14,291 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2023-08-30 13:03:14,292 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:14,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-08-30 13:03:14,296 INFO L119 LiptonReduction]: Number of co-enabled transitions 2284 [2023-08-30 13:03:20,791 INFO L134 LiptonReduction]: Checked pairs total: 8304 [2023-08-30 13:03:20,791 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-08-30 13:03:20,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:03:20,809 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;@4a4832d4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:03:20,809 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 13:03:20,819 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 13:03:20,820 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:20,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:20,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:03:20,821 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 13:03:20,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:20,825 INFO L85 PathProgramCache]: Analyzing trace with hash -756363596, now seen corresponding path program 1 times [2023-08-30 13:03:20,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:20,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110610002] [2023-08-30 13:03:20,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:20,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:21,163 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 13:03:21,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:21,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110610002] [2023-08-30 13:03:21,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110610002] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:21,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:21,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:03:21,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507691824] [2023-08-30 13:03:21,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:21,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:03:21,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:21,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:03:21,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:03:21,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 236 [2023-08-30 13:03:21,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 13:03:21,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:21,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 236 [2023-08-30 13:03:21,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:21,675 INFO L130 PetriNetUnfolder]: 1273/2024 cut-off events. [2023-08-30 13:03:21,675 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-30 13:03:21,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4105 conditions, 2024 events. 1273/2024 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9764 event pairs, 545 based on Foata normal form. 138/1628 useless extension candidates. Maximal degree in co-relation 4094. Up to 1757 conditions per place. [2023-08-30 13:03:21,689 INFO L137 encePairwiseOnDemand]: 224/236 looper letters, 38 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2023-08-30 13:03:21,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 43 transitions, 185 flow [2023-08-30 13:03:21,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:03:21,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:03:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2023-08-30 13:03:21,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5211864406779662 [2023-08-30 13:03:21,702 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2023-08-30 13:03:21,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2023-08-30 13:03:21,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:21,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2023-08-30 13:03:21,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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 13:03:21,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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 13:03:21,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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 13:03:21,715 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 67 flow. Second operand 3 states and 369 transitions. [2023-08-30 13:03:21,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 43 transitions, 185 flow [2023-08-30 13:03:21,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 180 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:03:21,720 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 100 flow [2023-08-30 13:03:21,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2023-08-30 13:03:21,725 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-08-30 13:03:21,725 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 100 flow [2023-08-30 13:03:21,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 13:03:21,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:21,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:03:21,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:03:21,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:03:21,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:21,727 INFO L85 PathProgramCache]: Analyzing trace with hash 111340374, now seen corresponding path program 1 times [2023-08-30 13:03:21,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:21,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743222029] [2023-08-30 13:03:21,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:21,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:21,871 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 13:03:21,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:21,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743222029] [2023-08-30 13:03:21,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743222029] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:21,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:21,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:03:21,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467002863] [2023-08-30 13:03:21,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:21,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:03:21,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:21,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:03:21,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:03:21,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 236 [2023-08-30 13:03:21,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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 13:03:21,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:21,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 236 [2023-08-30 13:03:21,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:22,231 INFO L130 PetriNetUnfolder]: 935/1490 cut-off events. [2023-08-30 13:03:22,231 INFO L131 PetriNetUnfolder]: For 121/121 co-relation queries the response was YES. [2023-08-30 13:03:22,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3623 conditions, 1490 events. 935/1490 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6742 event pairs, 345 based on Foata normal form. 0/1308 useless extension candidates. Maximal degree in co-relation 3612. Up to 1222 conditions per place. [2023-08-30 13:03:22,239 INFO L137 encePairwiseOnDemand]: 229/236 looper letters, 35 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2023-08-30 13:03:22,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 194 flow [2023-08-30 13:03:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:03:22,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:03:22,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 466 transitions. [2023-08-30 13:03:22,242 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4936440677966102 [2023-08-30 13:03:22,243 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 466 transitions. [2023-08-30 13:03:22,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 466 transitions. [2023-08-30 13:03:22,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:22,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 466 transitions. [2023-08-30 13:03:22,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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 13:03:22,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 13:03:22,248 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 13:03:22,248 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 100 flow. Second operand 4 states and 466 transitions. [2023-08-30 13:03:22,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 194 flow [2023-08-30 13:03:22,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 40 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:03:22,251 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 92 flow [2023-08-30 13:03:22,251 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-08-30 13:03:22,252 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2023-08-30 13:03:22,252 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 92 flow [2023-08-30 13:03:22,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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 13:03:22,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:22,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:03:22,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:03:22,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:03:22,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:22,254 INFO L85 PathProgramCache]: Analyzing trace with hash 111340375, now seen corresponding path program 1 times [2023-08-30 13:03:22,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:22,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415044214] [2023-08-30 13:03:22,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:22,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:22,373 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 13:03:22,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:22,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415044214] [2023-08-30 13:03:22,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415044214] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:22,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:22,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:03:22,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876588305] [2023-08-30 13:03:22,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:22,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:03:22,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:22,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:03:22,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:03:22,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 236 [2023-08-30 13:03:22,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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 13:03:22,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:22,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 236 [2023-08-30 13:03:22,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:22,626 INFO L130 PetriNetUnfolder]: 414/695 cut-off events. [2023-08-30 13:03:22,626 INFO L131 PetriNetUnfolder]: For 185/185 co-relation queries the response was YES. [2023-08-30 13:03:22,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1698 conditions, 695 events. 414/695 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2758 event pairs, 171 based on Foata normal form. 33/706 useless extension candidates. Maximal degree in co-relation 1686. Up to 260 conditions per place. [2023-08-30 13:03:22,631 INFO L137 encePairwiseOnDemand]: 228/236 looper letters, 42 selfloop transitions, 7 changer transitions 3/53 dead transitions. [2023-08-30 13:03:22,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 53 transitions, 258 flow [2023-08-30 13:03:22,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:03:22,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:03:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 480 transitions. [2023-08-30 13:03:22,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5084745762711864 [2023-08-30 13:03:22,633 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 480 transitions. [2023-08-30 13:03:22,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 480 transitions. [2023-08-30 13:03:22,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:22,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 480 transitions. [2023-08-30 13:03:22,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 13:03:22,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 13:03:22,638 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 13:03:22,638 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 92 flow. Second operand 4 states and 480 transitions. [2023-08-30 13:03:22,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 53 transitions, 258 flow [2023-08-30 13:03:22,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 53 transitions, 253 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:03:22,640 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 115 flow [2023-08-30 13:03:22,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-08-30 13:03:22,641 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2023-08-30 13:03:22,641 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 115 flow [2023-08-30 13:03:22,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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 13:03:22,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:22,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:03:22,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:03:22,642 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 13:03:22,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:22,643 INFO L85 PathProgramCache]: Analyzing trace with hash -938546713, now seen corresponding path program 1 times [2023-08-30 13:03:22,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:22,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927645891] [2023-08-30 13:03:22,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:22,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:22,781 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 13:03:22,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:22,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927645891] [2023-08-30 13:03:22,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927645891] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:22,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:22,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:03:22,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489197152] [2023-08-30 13:03:22,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:22,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:03:22,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:22,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:03:22,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:03:22,796 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 236 [2023-08-30 13:03:22,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 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 13:03:22,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:22,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 236 [2023-08-30 13:03:22,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:22,985 INFO L130 PetriNetUnfolder]: 354/571 cut-off events. [2023-08-30 13:03:22,986 INFO L131 PetriNetUnfolder]: For 387/387 co-relation queries the response was YES. [2023-08-30 13:03:22,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1571 conditions, 571 events. 354/571 cut-off events. For 387/387 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2210 event pairs, 155 based on Foata normal form. 16/583 useless extension candidates. Maximal degree in co-relation 1558. Up to 260 conditions per place. [2023-08-30 13:03:22,988 INFO L137 encePairwiseOnDemand]: 228/236 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2023-08-30 13:03:22,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 43 transitions, 219 flow [2023-08-30 13:03:22,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:03:22,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:03:22,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 576 transitions. [2023-08-30 13:03:22,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.488135593220339 [2023-08-30 13:03:22,994 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 576 transitions. [2023-08-30 13:03:22,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 576 transitions. [2023-08-30 13:03:22,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:22,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 576 transitions. [2023-08-30 13:03:22,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 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 13:03:22,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 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 13:03:23,000 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 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 13:03:23,000 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 115 flow. Second operand 5 states and 576 transitions. [2023-08-30 13:03:23,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 43 transitions, 219 flow [2023-08-30 13:03:23,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 43 transitions, 195 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 13:03:23,004 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2023-08-30 13:03:23,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2023-08-30 13:03:23,006 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -6 predicate places. [2023-08-30 13:03:23,006 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2023-08-30 13:03:23,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 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 13:03:23,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 13:03:23,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 13:03:23,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 13:03:23,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 13:03:23,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 13:03:23,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 13:03:23,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 13:03:23,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 13:03:23,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 13:03:23,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 13:03:23,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 13:03:23,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 13:03:23,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 13:03:23,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 13:03:23,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 13:03:23,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:03:23,013 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 13:03:23,020 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:03:23,020 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:03:23,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:03:23 BasicIcfg [2023-08-30 13:03:23,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:03:23,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:03:23,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:03:23,029 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:03:23,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:13" (3/4) ... [2023-08-30 13:03:23,031 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:03:23,036 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:03:23,036 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:03:23,036 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:03:23,041 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2023-08-30 13:03:23,041 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-30 13:03:23,041 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 13:03:23,042 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:03:23,089 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:03:23,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:03:23,090 INFO L158 Benchmark]: Toolchain (without parser) took 10876.38ms. Allocated memory was 62.9MB in the beginning and 197.1MB in the end (delta: 134.2MB). Free memory was 28.5MB in the beginning and 59.9MB in the end (delta: -31.4MB). Peak memory consumption was 102.5MB. Max. memory is 16.1GB. [2023-08-30 13:03:23,090 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:03:23,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.28ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 28.3MB in the beginning and 35.7MB in the end (delta: -7.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2023-08-30 13:03:23,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.54ms. Allocated memory is still 75.5MB. Free memory was 35.7MB in the beginning and 33.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:03:23,091 INFO L158 Benchmark]: Boogie Preprocessor took 65.92ms. Allocated memory is still 75.5MB. Free memory was 33.0MB in the beginning and 30.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:03:23,091 INFO L158 Benchmark]: RCFGBuilder took 1094.33ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 30.6MB in the beginning and 62.0MB in the end (delta: -31.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2023-08-30 13:03:23,092 INFO L158 Benchmark]: TraceAbstraction took 9033.55ms. Allocated memory was 92.3MB in the beginning and 197.1MB in the end (delta: 104.9MB). Free memory was 61.4MB in the beginning and 64.1MB in the end (delta: -2.7MB). Peak memory consumption was 101.2MB. Max. memory is 16.1GB. [2023-08-30 13:03:23,092 INFO L158 Benchmark]: Witness Printer took 61.04ms. Allocated memory is still 197.1MB. Free memory was 64.1MB in the beginning and 59.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:03:23,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 534.28ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 28.3MB in the beginning and 35.7MB in the end (delta: -7.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.54ms. Allocated memory is still 75.5MB. Free memory was 35.7MB in the beginning and 33.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.92ms. Allocated memory is still 75.5MB. Free memory was 33.0MB in the beginning and 30.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1094.33ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 30.6MB in the beginning and 62.0MB in the end (delta: -31.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9033.55ms. Allocated memory was 92.3MB in the beginning and 197.1MB in the end (delta: 104.9MB). Free memory was 61.4MB in the beginning and 64.1MB in the end (delta: -2.7MB). Peak memory consumption was 101.2MB. Max. memory is 16.1GB. * Witness Printer took 61.04ms. Allocated memory is still 197.1MB. Free memory was 64.1MB in the beginning and 59.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5s, 134 PlacesBefore, 38 PlacesAfterwards, 126 TransitionsBefore, 29 TransitionsAfterwards, 2284 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 107 TotalNumberOfCompositions, 8304 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2199, independent: 1919, independent conditional: 0, independent unconditional: 1919, dependent: 280, dependent conditional: 0, dependent unconditional: 280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1213, independent: 1158, independent conditional: 0, independent unconditional: 1158, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2199, independent: 761, independent conditional: 0, independent unconditional: 761, dependent: 225, dependent conditional: 0, dependent unconditional: 225, unknown: 1213, unknown conditional: 0, unknown unconditional: 1213] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, 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: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: 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, 160 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: 8.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 255 IncrementalHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 7 mSDtfsCounter, 255 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=115occurred in iteration=3, 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, 0.5s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 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 13:03:23,128 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