./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe011_power.opt_pso.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/safe011_power.opt_pso.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 bdec055c4bfc04b6b0c3fc918f7b96def91dcb331178222835136af29a7feef5 --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 13:03:25,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:03:25,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:03:25,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:03:25,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:03:25,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:03:25,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:03:25,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:03:25,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:03:25,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:03:25,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:03:25,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:03:25,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:03:25,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:03:25,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:03:25,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:03:25,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:03:25,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:03:25,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:03:25,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:03:25,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:03:25,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:03:25,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:03:25,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:03:25,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:03:25,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:03:25,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:03:25,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:03:25,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:03:25,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:03:25,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:03:25,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:03:25,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:03:25,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:03:25,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:03:25,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:03:25,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:03:25,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:03:25,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:03:25,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:03:25,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:03:25,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:03:25,906 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:03:25,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:03:25,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:03:25,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:03:25,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:03:25,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:03:25,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:03:25,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:03:25,910 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:03:25,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:03:25,911 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:03:25,911 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:03:25,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:03:25,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:03:25,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:03:25,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:03:25,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:03:25,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:03:25,913 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:03:25,913 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:03:25,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:03:25,913 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:03:25,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:03:25,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:03:25,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:03:25,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:03:25,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:03:25,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:03:25,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:03:25,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:03:25,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:03:25,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:03:25,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:03:25,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:03:25,916 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:03:25,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:03:25,916 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:03:25,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdec055c4bfc04b6b0c3fc918f7b96def91dcb331178222835136af29a7feef5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:03:26,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:03:26,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:03:26,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:03:26,268 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:03:26,268 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:03:26,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_power.opt_pso.opt.i [2023-08-30 13:03:27,489 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:03:27,789 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:03:27,790 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_power.opt_pso.opt.i [2023-08-30 13:03:27,811 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb11145e9/16d0c8f0bf264c86941389edd37b2bb2/FLAG8175d5b77 [2023-08-30 13:03:27,830 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb11145e9/16d0c8f0bf264c86941389edd37b2bb2 [2023-08-30 13:03:27,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:03:27,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:03:27,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:03:27,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:03:27,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:03:27,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:03:27" (1/1) ... [2023-08-30 13:03:27,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@116b941f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:27, skipping insertion in model container [2023-08-30 13:03:27,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:03:27" (1/1) ... [2023-08-30 13:03:27,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:03:27,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:03:28,053 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/safe011_power.opt_pso.opt.i[959,972] [2023-08-30 13:03:28,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:03:28,256 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:03:28,267 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/safe011_power.opt_pso.opt.i[959,972] [2023-08-30 13:03:28,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:03:28,368 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:03:28,368 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:03:28,374 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:03:28,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28 WrapperNode [2023-08-30 13:03:28,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:03:28,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:03:28,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:03:28,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:03:28,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (1/1) ... [2023-08-30 13:03:28,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (1/1) ... [2023-08-30 13:03:28,428 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2023-08-30 13:03:28,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:03:28,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:03:28,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:03:28,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:03:28,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (1/1) ... [2023-08-30 13:03:28,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (1/1) ... [2023-08-30 13:03:28,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (1/1) ... [2023-08-30 13:03:28,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (1/1) ... [2023-08-30 13:03:28,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (1/1) ... [2023-08-30 13:03:28,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (1/1) ... [2023-08-30 13:03:28,484 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (1/1) ... [2023-08-30 13:03:28,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (1/1) ... [2023-08-30 13:03:28,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:03:28,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:03:28,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:03:28,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:03:28,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (1/1) ... [2023-08-30 13:03:28,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:03:28,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:03:28,534 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 13:03:28,558 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 13:03:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:03:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:03:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:03:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:03:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:03:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:03:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:03:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:03:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:03:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:03:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:03:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:03:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:03:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:03:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:03:28,576 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 13:03:28,738 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:03:28,740 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:03:29,071 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:03:29,230 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:03:29,231 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:03:29,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:29 BoogieIcfgContainer [2023-08-30 13:03:29,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:03:29,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:03:29,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:03:29,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:03:29,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:03:27" (1/3) ... [2023-08-30 13:03:29,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330e32a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:03:29, skipping insertion in model container [2023-08-30 13:03:29,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:28" (2/3) ... [2023-08-30 13:03:29,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330e32a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:03:29, skipping insertion in model container [2023-08-30 13:03:29,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:29" (3/3) ... [2023-08-30 13:03:29,242 INFO L112 eAbstractionObserver]: Analyzing ICFG safe011_power.opt_pso.opt.i [2023-08-30 13:03:29,249 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:03:29,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:03:29,258 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 13:03:29,258 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:03:29,317 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:03:29,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 111 transitions, 237 flow [2023-08-30 13:03:29,415 INFO L130 PetriNetUnfolder]: 2/108 cut-off events. [2023-08-30 13:03:29,415 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:29,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 108 events. 2/108 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. 0/100 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-30 13:03:29,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 111 transitions, 237 flow [2023-08-30 13:03:29,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 108 transitions, 225 flow [2023-08-30 13:03:29,429 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:03:29,440 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 108 transitions, 225 flow [2023-08-30 13:03:29,443 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 108 transitions, 225 flow [2023-08-30 13:03:29,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 108 transitions, 225 flow [2023-08-30 13:03:29,483 INFO L130 PetriNetUnfolder]: 2/108 cut-off events. [2023-08-30 13:03:29,483 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:29,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 108 events. 2/108 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. 0/100 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-30 13:03:29,487 INFO L119 LiptonReduction]: Number of co-enabled transitions 2376 [2023-08-30 13:03:33,301 INFO L134 LiptonReduction]: Checked pairs total: 7373 [2023-08-30 13:03:33,301 INFO L136 LiptonReduction]: Total number of compositions: 89 [2023-08-30 13:03:33,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:03:33,318 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;@7c43a762, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:03:33,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 13:03:33,323 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 13:03:33,323 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:33,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:33,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:03:33,325 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 13:03:33,329 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:33,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1704244371, now seen corresponding path program 1 times [2023-08-30 13:03:33,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:33,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003985276] [2023-08-30 13:03:33,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:33,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:33,542 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 13:03:33,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:33,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003985276] [2023-08-30 13:03:33,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003985276] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:33,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:33,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:03:33,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359067287] [2023-08-30 13:03:33,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:33,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:03:33,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:33,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:03:33,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:03:33,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 200 [2023-08-30 13:03:33,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 13:03:33,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:33,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 200 [2023-08-30 13:03:33,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:33,912 INFO L130 PetriNetUnfolder]: 929/1464 cut-off events. [2023-08-30 13:03:33,913 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-30 13:03:33,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2969 conditions, 1464 events. 929/1464 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6996 event pairs, 294 based on Foata normal form. 0/1178 useless extension candidates. Maximal degree in co-relation 2958. Up to 1100 conditions per place. [2023-08-30 13:03:33,928 INFO L137 encePairwiseOnDemand]: 190/200 looper letters, 36 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2023-08-30 13:03:33,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 181 flow [2023-08-30 13:03:33,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:03:33,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:03:33,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2023-08-30 13:03:33,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5216666666666666 [2023-08-30 13:03:33,945 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2023-08-30 13:03:33,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2023-08-30 13:03:33,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:33,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2023-08-30 13:03:33,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 13:03:33,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 200.0) internal successors, (800), 4 states have internal predecessors, (800), 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 13:03:33,960 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 200.0) internal successors, (800), 4 states have internal predecessors, (800), 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 13:03:33,961 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 63 flow. Second operand 3 states and 313 transitions. [2023-08-30 13:03:33,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 181 flow [2023-08-30 13:03:33,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:03:33,966 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 96 flow [2023-08-30 13:03:33,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=200, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-08-30 13:03:33,973 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2023-08-30 13:03:33,974 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 96 flow [2023-08-30 13:03:33,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 13:03:33,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:33,977 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:03:33,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:03:33,978 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 13:03:33,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:33,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1062079194, now seen corresponding path program 1 times [2023-08-30 13:03:33,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:33,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923996408] [2023-08-30 13:03:33,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:33,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:34,135 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 13:03:34,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:34,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923996408] [2023-08-30 13:03:34,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923996408] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:34,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:34,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:03:34,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795033958] [2023-08-30 13:03:34,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:34,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:03:34,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:34,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:03:34,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:03:34,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 200 [2023-08-30 13:03:34,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 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) [2023-08-30 13:03:34,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:34,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 200 [2023-08-30 13:03:34,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:34,361 INFO L130 PetriNetUnfolder]: 727/1138 cut-off events. [2023-08-30 13:03:34,362 INFO L131 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2023-08-30 13:03:34,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2781 conditions, 1138 events. 727/1138 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5177 event pairs, 246 based on Foata normal form. 0/1012 useless extension candidates. Maximal degree in co-relation 2770. Up to 773 conditions per place. [2023-08-30 13:03:34,368 INFO L137 encePairwiseOnDemand]: 193/200 looper letters, 33 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2023-08-30 13:03:34,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 188 flow [2023-08-30 13:03:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:03:34,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:03:34,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 396 transitions. [2023-08-30 13:03:34,370 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.495 [2023-08-30 13:03:34,370 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 396 transitions. [2023-08-30 13:03:34,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 396 transitions. [2023-08-30 13:03:34,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:34,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 396 transitions. [2023-08-30 13:03:34,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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 13:03:34,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 200.0) internal successors, (1000), 5 states have internal predecessors, (1000), 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 13:03:34,375 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 200.0) internal successors, (1000), 5 states have internal predecessors, (1000), 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 13:03:34,375 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 96 flow. Second operand 4 states and 396 transitions. [2023-08-30 13:03:34,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 188 flow [2023-08-30 13:03:34,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:03:34,377 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 88 flow [2023-08-30 13:03:34,377 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=200, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2023-08-30 13:03:34,378 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2023-08-30 13:03:34,378 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 88 flow [2023-08-30 13:03:34,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 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) [2023-08-30 13:03:34,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:34,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:03:34,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:03:34,379 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 13:03:34,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:34,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1062079195, now seen corresponding path program 1 times [2023-08-30 13:03:34,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:34,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50860014] [2023-08-30 13:03:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:34,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:34,447 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 13:03:34,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:34,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50860014] [2023-08-30 13:03:34,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50860014] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:34,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:34,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:03:34,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439172623] [2023-08-30 13:03:34,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:34,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:03:34,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:34,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:03:34,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:03:34,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 200 [2023-08-30 13:03:34,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 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) [2023-08-30 13:03:34,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:34,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 200 [2023-08-30 13:03:34,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:34,653 INFO L130 PetriNetUnfolder]: 576/899 cut-off events. [2023-08-30 13:03:34,653 INFO L131 PetriNetUnfolder]: For 338/338 co-relation queries the response was YES. [2023-08-30 13:03:34,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2176 conditions, 899 events. 576/899 cut-off events. For 338/338 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3947 event pairs, 218 based on Foata normal form. 0/873 useless extension candidates. Maximal degree in co-relation 2164. Up to 369 conditions per place. [2023-08-30 13:03:34,658 INFO L137 encePairwiseOnDemand]: 193/200 looper letters, 41 selfloop transitions, 7 changer transitions 3/54 dead transitions. [2023-08-30 13:03:34,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 54 transitions, 256 flow [2023-08-30 13:03:34,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:03:34,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:03:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2023-08-30 13:03:34,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125 [2023-08-30 13:03:34,660 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 410 transitions. [2023-08-30 13:03:34,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 410 transitions. [2023-08-30 13:03:34,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:34,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 410 transitions. [2023-08-30 13:03:34,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 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 13:03:34,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 200.0) internal successors, (1000), 5 states have internal predecessors, (1000), 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 13:03:34,664 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 200.0) internal successors, (1000), 5 states have internal predecessors, (1000), 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 13:03:34,664 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 88 flow. Second operand 4 states and 410 transitions. [2023-08-30 13:03:34,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 54 transitions, 256 flow [2023-08-30 13:03:34,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 251 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:03:34,666 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 109 flow [2023-08-30 13:03:34,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=200, PETRI_DIFFERENCE_MINUEND_FLOW=83, 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=109, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-08-30 13:03:34,667 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2023-08-30 13:03:34,667 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 109 flow [2023-08-30 13:03:34,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 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) [2023-08-30 13:03:34,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:34,668 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:03:34,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:03:34,668 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 13:03:34,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:34,669 INFO L85 PathProgramCache]: Analyzing trace with hash 441691399, now seen corresponding path program 1 times [2023-08-30 13:03:34,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:34,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96748866] [2023-08-30 13:03:34,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:34,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:34,782 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 13:03:34,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:34,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96748866] [2023-08-30 13:03:34,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96748866] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:34,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:34,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:03:34,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336746033] [2023-08-30 13:03:34,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:34,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:03:34,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:34,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:03:34,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:03:34,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 200 [2023-08-30 13:03:34,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 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 13:03:34,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:34,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 200 [2023-08-30 13:03:34,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:35,018 INFO L130 PetriNetUnfolder]: 556/863 cut-off events. [2023-08-30 13:03:35,019 INFO L131 PetriNetUnfolder]: For 690/690 co-relation queries the response was YES. [2023-08-30 13:03:35,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 863 events. 556/863 cut-off events. For 690/690 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3818 event pairs, 218 based on Foata normal form. 12/861 useless extension candidates. Maximal degree in co-relation 2342. Up to 369 conditions per place. [2023-08-30 13:03:35,022 INFO L137 encePairwiseOnDemand]: 193/200 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2023-08-30 13:03:35,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 235 flow [2023-08-30 13:03:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:03:35,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:03:35,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 493 transitions. [2023-08-30 13:03:35,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.493 [2023-08-30 13:03:35,024 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 493 transitions. [2023-08-30 13:03:35,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 493 transitions. [2023-08-30 13:03:35,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:35,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 493 transitions. [2023-08-30 13:03:35,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 98.6) internal successors, (493), 5 states have internal predecessors, (493), 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 13:03:35,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 200.0) internal successors, (1200), 6 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) [2023-08-30 13:03:35,028 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 200.0) internal successors, (1200), 6 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) [2023-08-30 13:03:35,029 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 109 flow. Second operand 5 states and 493 transitions. [2023-08-30 13:03:35,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 235 flow [2023-08-30 13:03:35,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 211 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 13:03:35,031 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-30 13:03:35,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=200, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-30 13:03:35,032 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2023-08-30 13:03:35,032 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-30 13:03:35,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 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 13:03:35,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 13:03:35,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 13:03:35,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 13:03:35,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 13:03:35,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 13:03:35,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 13:03:35,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 13:03:35,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 13:03:35,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 13:03:35,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 13:03:35,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 13:03:35,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 13:03:35,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 13:03:35,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 13:03:35,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 13:03:35,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:03:35,039 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 13:03:35,043 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:03:35,043 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:03:35,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:03:35 BasicIcfg [2023-08-30 13:03:35,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:03:35,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:03:35,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:03:35,047 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:03:35,048 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:29" (3/4) ... [2023-08-30 13:03:35,049 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:03:35,053 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:03:35,054 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:03:35,054 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:03:35,058 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2023-08-30 13:03:35,058 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-08-30 13:03:35,058 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:03:35,058 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:03:35,093 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:03:35,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:03:35,096 INFO L158 Benchmark]: Toolchain (without parser) took 7260.74ms. Allocated memory was 75.5MB in the beginning and 134.2MB in the end (delta: 58.7MB). Free memory was 52.3MB in the beginning and 92.3MB in the end (delta: -40.1MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-08-30 13:03:35,096 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 32.6MB in the beginning and 32.5MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:03:35,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 538.82ms. Allocated memory is still 75.5MB. Free memory was 52.1MB in the beginning and 48.8MB in the end (delta: 3.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-08-30 13:03:35,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.23ms. Allocated memory is still 75.5MB. Free memory was 48.8MB in the beginning and 46.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:03:35,097 INFO L158 Benchmark]: Boogie Preprocessor took 59.43ms. Allocated memory is still 75.5MB. Free memory was 46.1MB in the beginning and 44.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:03:35,100 INFO L158 Benchmark]: RCFGBuilder took 737.60ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 44.2MB in the beginning and 67.5MB in the end (delta: -23.3MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2023-08-30 13:03:35,100 INFO L158 Benchmark]: TraceAbstraction took 5811.07ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 66.9MB in the beginning and 95.5MB in the end (delta: -28.5MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. [2023-08-30 13:03:35,101 INFO L158 Benchmark]: Witness Printer took 48.74ms. Allocated memory is still 134.2MB. Free memory was 95.5MB in the beginning and 92.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:03:35,102 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 32.6MB in the beginning and 32.5MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 538.82ms. Allocated memory is still 75.5MB. Free memory was 52.1MB in the beginning and 48.8MB in the end (delta: 3.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.23ms. Allocated memory is still 75.5MB. Free memory was 48.8MB in the beginning and 46.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.43ms. Allocated memory is still 75.5MB. Free memory was 46.1MB in the beginning and 44.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 737.60ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 44.2MB in the beginning and 67.5MB in the end (delta: -23.3MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5811.07ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 66.9MB in the beginning and 95.5MB in the end (delta: -28.5MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. * Witness Printer took 48.74ms. Allocated memory is still 134.2MB. Free memory was 95.5MB in the beginning and 92.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 116 PlacesBefore, 37 PlacesAfterwards, 108 TransitionsBefore, 27 TransitionsAfterwards, 2376 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 89 TotalNumberOfCompositions, 7373 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3224, independent: 2996, independent conditional: 0, independent unconditional: 2996, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1265, independent: 1206, independent conditional: 0, independent unconditional: 1206, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3224, independent: 1790, independent conditional: 0, independent unconditional: 1790, dependent: 169, dependent conditional: 0, dependent unconditional: 169, unknown: 1265, unknown conditional: 0, unknown unconditional: 1265] , Statistics on independence cache: Total cache size (in pairs): 123, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: 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, 143 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 233 IncrementalHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 5 mSDtfsCounter, 233 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=109occurred 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, 0.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 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 13:03:35,124 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