./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi003_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 AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi003_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 5b81d744fec4d4b48b220b63eb6337c45e4be951600681981b2881c9432ed2ae --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:45:54,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:45:54,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:45:54,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:45:54,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:45:54,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:45:54,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:45:54,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:45:54,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:45:54,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:45:54,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:45:54,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:45:54,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:45:54,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:45:54,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:45:54,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:45:54,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:45:54,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:45:54,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:45:54,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:45:54,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:45:54,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:45:54,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:45:54,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:45:54,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:45:54,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:45:54,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:45:54,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:45:54,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:45:54,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:45:54,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:45:54,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:45:54,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:45:54,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:45:54,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:45:54,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:45:54,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:45:54,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:45:54,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:45:54,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:45:54,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:45:54,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:45:54,204 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:45:54,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:45:54,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:45:54,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:45:54,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:45:54,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:45:54,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:45:54,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:45:54,208 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:45:54,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:45:54,209 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:45:54,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:45:54,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:45:54,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:45:54,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:45:54,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:45:54,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:45:54,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:45:54,210 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:45:54,211 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:45:54,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:45:54,211 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:45:54,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:45:54,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:45:54,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:45:54,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:45:54,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:45:54,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:45:54,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:45:54,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:45:54,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:45:54,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:45:54,213 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:45:54,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:45:54,214 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:45:54,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:45:54,214 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:45:54,214 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b81d744fec4d4b48b220b63eb6337c45e4be951600681981b2881c9432ed2ae Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:45:54,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:45:54,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:45:54,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:45:54,506 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:45:54,507 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:45:54,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-08-30 08:45:55,659 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:45:55,900 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:45:55,900 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-08-30 08:45:55,913 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e6a64e30/7b168daa3619438c9ec9d0b83d72a780/FLAGcb50990e8 [2023-08-30 08:45:55,927 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e6a64e30/7b168daa3619438c9ec9d0b83d72a780 [2023-08-30 08:45:55,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:45:55,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:45:55,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:45:55,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:45:55,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:45:55,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:45:55" (1/1) ... [2023-08-30 08:45:55,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c15978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:55, skipping insertion in model container [2023-08-30 08:45:55,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:45:55" (1/1) ... [2023-08-30 08:45:55,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:45:55,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:45:56,113 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/rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2023-08-30 08:45:56,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:45:56,318 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:45:56,330 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/rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2023-08-30 08:45:56,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:45:56,444 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:45:56,447 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:45:56,452 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:45:56,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56 WrapperNode [2023-08-30 08:45:56,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:45:56,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:45:56,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:45:56,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:45:56,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (1/1) ... [2023-08-30 08:45:56,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (1/1) ... [2023-08-30 08:45:56,522 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2023-08-30 08:45:56,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:45:56,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:45:56,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:45:56,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:45:56,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (1/1) ... [2023-08-30 08:45:56,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (1/1) ... [2023-08-30 08:45:56,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (1/1) ... [2023-08-30 08:45:56,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (1/1) ... [2023-08-30 08:45:56,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (1/1) ... [2023-08-30 08:45:56,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (1/1) ... [2023-08-30 08:45:56,567 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (1/1) ... [2023-08-30 08:45:56,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (1/1) ... [2023-08-30 08:45:56,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:45:56,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:45:56,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:45:56,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:45:56,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (1/1) ... [2023-08-30 08:45:56,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:45:56,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:45:56,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:45:56,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:45:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:45:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:45:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:45:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:45:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:45:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:45:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:45:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:45:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:45:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:45:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:45:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:45:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:45:56,659 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:45:56,797 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:45:56,798 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:45:57,007 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:45:57,270 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:45:57,277 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:45:57,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:45:57 BoogieIcfgContainer [2023-08-30 08:45:57,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:45:57,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:45:57,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:45:57,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:45:57,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:45:55" (1/3) ... [2023-08-30 08:45:57,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762b76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:45:57, skipping insertion in model container [2023-08-30 08:45:57,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:45:56" (2/3) ... [2023-08-30 08:45:57,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762b76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:45:57, skipping insertion in model container [2023-08-30 08:45:57,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:45:57" (3/3) ... [2023-08-30 08:45:57,287 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-08-30 08:45:57,293 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:45:57,301 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:45:57,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 08:45:57,302 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:45:57,373 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:45:57,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2023-08-30 08:45:57,471 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-08-30 08:45:57,471 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:45:57,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-08-30 08:45:57,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2023-08-30 08:45:57,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2023-08-30 08:45:57,485 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:45:57,502 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions, 186 flow [2023-08-30 08:45:57,509 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 90 transitions, 186 flow [2023-08-30 08:45:57,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 186 flow [2023-08-30 08:45:57,544 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-08-30 08:45:57,545 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:45:57,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-08-30 08:45:57,547 INFO L119 LiptonReduction]: Number of co-enabled transitions 1276 [2023-08-30 08:46:00,479 INFO L134 LiptonReduction]: Checked pairs total: 3916 [2023-08-30 08:46:00,479 INFO L136 LiptonReduction]: Total number of compositions: 78 [2023-08-30 08:46:00,491 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:46:00,496 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;@63042f87, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:46:00,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-30 08:46:00,499 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 08:46:00,500 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:46:00,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:46:00,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:46:00,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 08:46:00,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:46:00,504 INFO L85 PathProgramCache]: Analyzing trace with hash 393631934, now seen corresponding path program 1 times [2023-08-30 08:46:00,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:46:00,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248732347] [2023-08-30 08:46:00,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:46:00,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:46:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:46:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:46:00,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:46:00,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248732347] [2023-08-30 08:46:00,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248732347] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:46:00,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:46:00,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:46:00,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656818046] [2023-08-30 08:46:00,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:46:00,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:46:00,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:46:00,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:46:00,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:46:00,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 170 [2023-08-30 08:46:00,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:00,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:46:00,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 170 [2023-08-30 08:46:00,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:46:00,898 INFO L130 PetriNetUnfolder]: 99/197 cut-off events. [2023-08-30 08:46:00,898 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 08:46:00,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 197 events. 99/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 680 event pairs, 44 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 389. Up to 102 conditions per place. [2023-08-30 08:46:00,902 INFO L137 encePairwiseOnDemand]: 162/170 looper letters, 23 selfloop transitions, 3 changer transitions 2/31 dead transitions. [2023-08-30 08:46:00,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 31 transitions, 127 flow [2023-08-30 08:46:00,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:46:00,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:46:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-08-30 08:46:00,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137254901960784 [2023-08-30 08:46:00,913 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-08-30 08:46:00,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-08-30 08:46:00,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:46:00,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-08-30 08:46:00,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:00,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:00,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:00,922 INFO L175 Difference]: Start difference. First operand has 27 places, 21 transitions, 48 flow. Second operand 3 states and 262 transitions. [2023-08-30 08:46:00,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 31 transitions, 127 flow [2023-08-30 08:46:00,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:46:00,926 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 61 flow [2023-08-30 08:46:00,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2023-08-30 08:46:00,930 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2023-08-30 08:46:00,930 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 61 flow [2023-08-30 08:46:00,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:00,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:46:00,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:46:00,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:46:00,931 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 08:46:00,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:46:00,932 INFO L85 PathProgramCache]: Analyzing trace with hash -39868869, now seen corresponding path program 1 times [2023-08-30 08:46:00,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:46:00,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110904582] [2023-08-30 08:46:00,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:46:00,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:46:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:46:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:46:01,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:46:01,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110904582] [2023-08-30 08:46:01,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110904582] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:46:01,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:46:01,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:46:01,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371550066] [2023-08-30 08:46:01,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:46:01,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:46:01,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:46:01,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:46:01,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:46:01,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 170 [2023-08-30 08:46:01,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:01,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:46:01,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 170 [2023-08-30 08:46:01,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:46:01,151 INFO L130 PetriNetUnfolder]: 86/172 cut-off events. [2023-08-30 08:46:01,151 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-08-30 08:46:01,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 172 events. 86/172 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 582 event pairs, 44 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 399. Up to 87 conditions per place. [2023-08-30 08:46:01,156 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 21 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2023-08-30 08:46:01,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 27 transitions, 121 flow [2023-08-30 08:46:01,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:46:01,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:46:01,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2023-08-30 08:46:01,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2023-08-30 08:46:01,162 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 330 transitions. [2023-08-30 08:46:01,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 330 transitions. [2023-08-30 08:46:01,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:46:01,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 330 transitions. [2023-08-30 08:46:01,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:01,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:01,168 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:01,169 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 61 flow. Second operand 4 states and 330 transitions. [2023-08-30 08:46:01,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 27 transitions, 121 flow [2023-08-30 08:46:01,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 27 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:46:01,170 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 56 flow [2023-08-30 08:46:01,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2023-08-30 08:46:01,171 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2023-08-30 08:46:01,171 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 56 flow [2023-08-30 08:46:01,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:01,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:46:01,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:46:01,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:46:01,173 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 08:46:01,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:46:01,174 INFO L85 PathProgramCache]: Analyzing trace with hash -39868868, now seen corresponding path program 1 times [2023-08-30 08:46:01,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:46:01,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083001535] [2023-08-30 08:46:01,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:46:01,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:46:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:46:01,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:46:01,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:46:01,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083001535] [2023-08-30 08:46:01,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083001535] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:46:01,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:46:01,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:46:01,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526280343] [2023-08-30 08:46:01,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:46:01,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:46:01,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:46:01,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:46:01,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:46:01,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 170 [2023-08-30 08:46:01,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:01,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:46:01,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 170 [2023-08-30 08:46:01,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:46:01,369 INFO L130 PetriNetUnfolder]: 80/158 cut-off events. [2023-08-30 08:46:01,370 INFO L131 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2023-08-30 08:46:01,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 158 events. 80/158 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 532 event pairs, 44 based on Foata normal form. 8/155 useless extension candidates. Maximal degree in co-relation 363. Up to 87 conditions per place. [2023-08-30 08:46:01,370 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2023-08-30 08:46:01,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 25 transitions, 112 flow [2023-08-30 08:46:01,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:46:01,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:46:01,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2023-08-30 08:46:01,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4823529411764706 [2023-08-30 08:46:01,372 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 328 transitions. [2023-08-30 08:46:01,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 328 transitions. [2023-08-30 08:46:01,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:46:01,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 328 transitions. [2023-08-30 08:46:01,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:01,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:01,375 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:01,375 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 56 flow. Second operand 4 states and 328 transitions. [2023-08-30 08:46:01,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 25 transitions, 112 flow [2023-08-30 08:46:01,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 25 transitions, 105 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:46:01,376 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-30 08:46:01,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-30 08:46:01,377 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2023-08-30 08:46:01,377 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-30 08:46:01,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:01,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-08-30 08:46:01,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-08-30 08:46:01,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-08-30 08:46:01,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-08-30 08:46:01,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-08-30 08:46:01,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-08-30 08:46:01,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-08-30 08:46:01,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-08-30 08:46:01,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-08-30 08:46:01,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-08-30 08:46:01,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:46:01,382 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-30 08:46:01,386 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:46:01,386 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:46:01,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:46:01 BasicIcfg [2023-08-30 08:46:01,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:46:01,389 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:46:01,389 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:46:01,389 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:46:01,390 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:45:57" (3/4) ... [2023-08-30 08:46:01,392 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:46:01,395 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:46:01,395 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:46:01,399 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-30 08:46:01,399 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 08:46:01,399 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:46:01,399 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:46:01,431 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:46:01,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:46:01,432 INFO L158 Benchmark]: Toolchain (without parser) took 5501.66ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 60.5MB in the beginning and 45.6MB in the end (delta: 15.0MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2023-08-30 08:46:01,433 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:46:01,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.71ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 58.1MB in the end (delta: 2.4MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2023-08-30 08:46:01,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.75ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 55.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:46:01,434 INFO L158 Benchmark]: Boogie Preprocessor took 53.22ms. Allocated memory is still 83.9MB. Free memory was 55.6MB in the beginning and 53.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:46:01,434 INFO L158 Benchmark]: RCFGBuilder took 701.46ms. Allocated memory is still 83.9MB. Free memory was 53.9MB in the beginning and 51.9MB in the end (delta: 2.0MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2023-08-30 08:46:01,435 INFO L158 Benchmark]: TraceAbstraction took 4108.43ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 51.2MB in the beginning and 48.9MB in the end (delta: 2.3MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-08-30 08:46:01,435 INFO L158 Benchmark]: Witness Printer took 42.81ms. Allocated memory is still 100.7MB. Free memory was 48.9MB in the beginning and 45.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:46:01,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.71ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 58.1MB in the end (delta: 2.4MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.75ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 55.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.22ms. Allocated memory is still 83.9MB. Free memory was 55.6MB in the beginning and 53.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 701.46ms. Allocated memory is still 83.9MB. Free memory was 53.9MB in the beginning and 51.9MB in the end (delta: 2.0MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4108.43ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 51.2MB in the beginning and 48.9MB in the end (delta: 2.3MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Witness Printer took 42.81ms. Allocated memory is still 100.7MB. Free memory was 48.9MB in the beginning and 45.6MB 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: 3.0s, 95 PlacesBefore, 27 PlacesAfterwards, 90 TransitionsBefore, 21 TransitionsAfterwards, 1276 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 78 TotalNumberOfCompositions, 3916 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1623, independent: 1444, independent conditional: 0, independent unconditional: 1444, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 722, independent: 683, independent conditional: 0, independent unconditional: 683, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1623, independent: 761, independent conditional: 0, independent unconditional: 761, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 722, unknown conditional: 0, unknown unconditional: 722] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: 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, 114 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: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 5 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 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! [2023-08-30 08:46:01,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE