./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.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 fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:25:41,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:25:41,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:25:41,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:25:41,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:25:41,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:25:41,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:25:41,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:25:41,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:25:41,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:25:41,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:25:41,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:25:41,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:25:41,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:25:41,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:25:41,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:25:41,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:25:41,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:25:41,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:25:41,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:25:41,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:25:41,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:25:41,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:25:41,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:25:41,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:25:41,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:25:41,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:25:41,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:25:41,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:25:41,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:25:41,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:25:41,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:25:41,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:25:41,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:25:41,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:25:41,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:25:41,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:25:41,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:25:41,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:25:41,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:25:41,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:25:41,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:25:41,900 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:25:41,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:25:41,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:25:41,902 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:25:41,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:25:41,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:25:41,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:25:41,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:25:41,904 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:25:41,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:25:41,905 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:25:41,905 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:25:41,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:25:41,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:25:41,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:25:41,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:25:41,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:25:41,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:25:41,907 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:25:41,907 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:25:41,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:25:41,908 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:25:41,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:25:41,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:25:41,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:25:41,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:25:41,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:25:41,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:25:41,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:25:41,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:25:41,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:25:41,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:25:41,910 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:25:41,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:25:41,911 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:25:41,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:25:41,911 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:25:41,912 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:25:42,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:25:42,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:25:42,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:25:42,267 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:25:42,268 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:25:42,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-09-01 05:25:43,621 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:25:43,940 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:25:43,941 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-09-01 05:25:43,957 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a6d3c431/c3f9d243879f4da584d434f8f4f4e4ab/FLAG29ab6bebf [2023-09-01 05:25:43,978 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a6d3c431/c3f9d243879f4da584d434f8f4f4e4ab [2023-09-01 05:25:43,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:25:43,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:25:43,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:25:43,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:25:43,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:25:43,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:25:43" (1/1) ... [2023-09-01 05:25:43,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d81e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:43, skipping insertion in model container [2023-09-01 05:25:43,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:25:43" (1/1) ... [2023-09-01 05:25:43,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:25:44,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:25:44,232 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/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2023-09-01 05:25:44,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:25:44,452 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:25:44,465 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/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2023-09-01 05:25:44,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:25:44,571 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:25:44,571 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:25:44,577 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:25:44,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44 WrapperNode [2023-09-01 05:25:44,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:25:44,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:25:44,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:25:44,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:25:44,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,620 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 115 [2023-09-01 05:25:44,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:25:44,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:25:44,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:25:44,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:25:44,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,645 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:25:44,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:25:44,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:25:44,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:25:44,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:25:44,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:25:44,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 05:25:44,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 05:25:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:25:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:25:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:25:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:25:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:25:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:25:44,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:25:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:25:44,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:25:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:25:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:25:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:25:44,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:25:44,727 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:25:44,857 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:25:44,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:25:45,208 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:25:45,336 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:25:45,336 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:25:45,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:45 BoogieIcfgContainer [2023-09-01 05:25:45,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:25:45,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:25:45,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:25:45,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:25:45,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:25:43" (1/3) ... [2023-09-01 05:25:45,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@565bf27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:25:45, skipping insertion in model container [2023-09-01 05:25:45,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (2/3) ... [2023-09-01 05:25:45,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@565bf27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:25:45, skipping insertion in model container [2023-09-01 05:25:45,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:45" (3/3) ... [2023-09-01 05:25:45,346 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-09-01 05:25:45,359 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:25:45,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:25:45,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 05:25:45,369 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:25:45,423 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:25:45,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 190 flow [2023-09-01 05:25:45,509 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-09-01 05:25:45,510 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:45,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-09-01 05:25:45,515 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 90 transitions, 190 flow [2023-09-01 05:25:45,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 88 transitions, 182 flow [2023-09-01 05:25:45,523 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:25:45,538 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 88 transitions, 182 flow [2023-09-01 05:25:45,542 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 88 transitions, 182 flow [2023-09-01 05:25:45,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 88 transitions, 182 flow [2023-09-01 05:25:45,574 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-09-01 05:25:45,575 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:45,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-09-01 05:25:45,578 INFO L119 LiptonReduction]: Number of co-enabled transitions 1224 [2023-09-01 05:25:48,611 INFO L134 LiptonReduction]: Checked pairs total: 4314 [2023-09-01 05:25:48,612 INFO L136 LiptonReduction]: Total number of compositions: 75 [2023-09-01 05:25:48,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:25:48,630 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;@7057bb75, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:25:48,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-09-01 05:25:48,635 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2023-09-01 05:25:48,635 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:48,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:48,636 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:25:48,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:25:48,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:48,641 INFO L85 PathProgramCache]: Analyzing trace with hash -650729212, now seen corresponding path program 1 times [2023-09-01 05:25:48,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:48,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46007809] [2023-09-01 05:25:48,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:48,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:48,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:48,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46007809] [2023-09-01 05:25:48,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46007809] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:48,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:48,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:25:48,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928656687] [2023-09-01 05:25:48,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:48,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:25:48,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:48,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:25:48,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:25:48,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2023-09-01 05:25:48,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:48,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:48,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2023-09-01 05:25:48,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:49,079 INFO L130 PetriNetUnfolder]: 273/465 cut-off events. [2023-09-01 05:25:49,079 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 05:25:49,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 465 events. 273/465 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1829 event pairs, 273 based on Foata normal form. 30/396 useless extension candidates. Maximal degree in co-relation 935. Up to 464 conditions per place. [2023-09-01 05:25:49,087 INFO L137 encePairwiseOnDemand]: 161/165 looper letters, 17 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2023-09-01 05:25:49,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 80 flow [2023-09-01 05:25:49,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:25:49,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:25:49,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2023-09-01 05:25:49,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2023-09-01 05:25:49,102 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2023-09-01 05:25:49,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2023-09-01 05:25:49,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:49,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2023-09-01 05:25:49,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,113 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,115 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 3 states and 240 transitions. [2023-09-01 05:25:49,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 80 flow [2023-09-01 05:25:49,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:25:49,118 INFO L231 Difference]: Finished difference. Result has 26 places, 19 transitions, 44 flow [2023-09-01 05:25:49,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2023-09-01 05:25:49,123 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2023-09-01 05:25:49,124 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 44 flow [2023-09-01 05:25:49,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:49,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:25:49,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:25:49,125 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:25:49,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash -650729211, now seen corresponding path program 1 times [2023-09-01 05:25:49,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:49,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839553113] [2023-09-01 05:25:49,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:49,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:49,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:49,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:49,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839553113] [2023-09-01 05:25:49,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839553113] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:49,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:49,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:25:49,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703313292] [2023-09-01 05:25:49,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:49,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:25:49,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:49,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:25:49,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:25:49,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2023-09-01 05:25:49,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:49,230 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2023-09-01 05:25:49,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:49,328 INFO L130 PetriNetUnfolder]: 87/181 cut-off events. [2023-09-01 05:25:49,328 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:49,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 181 events. 87/181 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 610 event pairs, 39 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 369. Up to 123 conditions per place. [2023-09-01 05:25:49,330 INFO L137 encePairwiseOnDemand]: 159/165 looper letters, 23 selfloop transitions, 3 changer transitions 2/29 dead transitions. [2023-09-01 05:25:49,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 29 transitions, 122 flow [2023-09-01 05:25:49,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:25:49,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:25:49,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-09-01 05:25:49,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5050505050505051 [2023-09-01 05:25:49,334 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-09-01 05:25:49,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-09-01 05:25:49,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:49,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-09-01 05:25:49,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,342 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,342 INFO L175 Difference]: Start difference. First operand has 26 places, 19 transitions, 44 flow. Second operand 3 states and 250 transitions. [2023-09-01 05:25:49,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 29 transitions, 122 flow [2023-09-01 05:25:49,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 121 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:25:49,344 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 58 flow [2023-09-01 05:25:49,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-09-01 05:25:49,346 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 0 predicate places. [2023-09-01 05:25:49,346 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 58 flow [2023-09-01 05:25:49,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:49,347 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:49,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:25:49,348 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:25:49,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:49,352 INFO L85 PathProgramCache]: Analyzing trace with hash 236107842, now seen corresponding path program 1 times [2023-09-01 05:25:49,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:49,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235966678] [2023-09-01 05:25:49,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:49,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:49,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:49,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:49,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235966678] [2023-09-01 05:25:49,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235966678] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:49,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:49,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:25:49,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018803133] [2023-09-01 05:25:49,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:49,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:25:49,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:49,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:25:49,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:25:49,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2023-09-01 05:25:49,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:49,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2023-09-01 05:25:49,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:49,617 INFO L130 PetriNetUnfolder]: 46/94 cut-off events. [2023-09-01 05:25:49,618 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2023-09-01 05:25:49,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 94 events. 46/94 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 267 event pairs, 27 based on Foata normal form. 11/104 useless extension candidates. Maximal degree in co-relation 227. Up to 58 conditions per place. [2023-09-01 05:25:49,621 INFO L137 encePairwiseOnDemand]: 159/165 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-09-01 05:25:49,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 21 transitions, 98 flow [2023-09-01 05:25:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:25:49,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:25:49,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 315 transitions. [2023-09-01 05:25:49,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4772727272727273 [2023-09-01 05:25:49,625 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 315 transitions. [2023-09-01 05:25:49,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 315 transitions. [2023-09-01 05:25:49,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:49,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 315 transitions. [2023-09-01 05:25:49,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,629 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,629 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 58 flow. Second operand 4 states and 315 transitions. [2023-09-01 05:25:49,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 21 transitions, 98 flow [2023-09-01 05:25:49,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:25:49,630 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2023-09-01 05:25:49,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2023-09-01 05:25:49,632 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -5 predicate places. [2023-09-01 05:25:49,634 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2023-09-01 05:25:49,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-09-01 05:25:49,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-09-01 05:25:49,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-09-01 05:25:49,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-09-01 05:25:49,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-09-01 05:25:49,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-09-01 05:25:49,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-09-01 05:25:49,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-09-01 05:25:49,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-09-01 05:25:49,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-09-01 05:25:49,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:25:49,644 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-09-01 05:25:49,651 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:25:49,651 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:25:49,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:25:49 BasicIcfg [2023-09-01 05:25:49,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:25:49,656 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:25:49,656 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:25:49,656 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:25:49,657 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:45" (3/4) ... [2023-09-01 05:25:49,659 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:25:49,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:25:49,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:25:49,668 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-09-01 05:25:49,669 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-09-01 05:25:49,669 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:25:49,671 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:25:49,712 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:25:49,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:25:49,713 INFO L158 Benchmark]: Toolchain (without parser) took 5730.05ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 53.8MB in the beginning and 24.5MB in the end (delta: 29.3MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2023-09-01 05:25:49,713 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 36.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:25:49,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.50ms. Allocated memory is still 77.6MB. Free memory was 53.6MB in the beginning and 49.7MB in the end (delta: 3.9MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-09-01 05:25:49,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.96ms. Allocated memory is still 77.6MB. Free memory was 49.7MB in the beginning and 47.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:25:49,715 INFO L158 Benchmark]: Boogie Preprocessor took 27.94ms. Allocated memory is still 77.6MB. Free memory was 47.2MB in the beginning and 45.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:25:49,715 INFO L158 Benchmark]: RCFGBuilder took 688.90ms. Allocated memory is still 77.6MB. Free memory was 45.6MB in the beginning and 33.5MB in the end (delta: 12.1MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-09-01 05:25:49,716 INFO L158 Benchmark]: TraceAbstraction took 4314.96ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 32.8MB in the beginning and 27.8MB in the end (delta: 5.0MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-09-01 05:25:49,720 INFO L158 Benchmark]: Witness Printer took 56.76ms. Allocated memory is still 94.4MB. Free memory was 27.8MB in the beginning and 24.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:25:49,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 36.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.50ms. Allocated memory is still 77.6MB. Free memory was 53.6MB in the beginning and 49.7MB in the end (delta: 3.9MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.96ms. Allocated memory is still 77.6MB. Free memory was 49.7MB in the beginning and 47.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.94ms. Allocated memory is still 77.6MB. Free memory was 47.2MB in the beginning and 45.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 688.90ms. Allocated memory is still 77.6MB. Free memory was 45.6MB in the beginning and 33.5MB in the end (delta: 12.1MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4314.96ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 32.8MB in the beginning and 27.8MB in the end (delta: 5.0MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Witness Printer took 56.76ms. Allocated memory is still 94.4MB. Free memory was 27.8MB in the beginning and 24.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 93 PlacesBefore, 28 PlacesAfterwards, 88 TransitionsBefore, 22 TransitionsAfterwards, 1224 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 4314 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1921, independent: 1715, independent conditional: 0, independent unconditional: 1715, dependent: 206, dependent conditional: 0, dependent unconditional: 206, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 695, independent: 664, independent conditional: 0, independent unconditional: 664, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1921, independent: 1051, independent conditional: 0, independent unconditional: 1051, dependent: 175, dependent conditional: 0, dependent unconditional: 175, unknown: 695, unknown conditional: 0, unknown unconditional: 695] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: 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 5 procedures, 111 locations, 10 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: 4.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 5 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=2, InterpolantAutomatonStates: 10, 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, 0.3s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:25:49,748 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