./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe007_power.opt-thin001_power.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_power.opt-thin001_power.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6328ead9c10c029445fd051d7c6329db494c1000fb08b7313fbd69c70835e259 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:23:46,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:23:46,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:23:46,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:23:46,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:23:46,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:23:46,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:23:46,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:23:46,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:23:46,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:23:46,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:23:46,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:23:46,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:23:46,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:23:46,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:23:46,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:23:46,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:23:46,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:23:46,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:23:46,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:23:46,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:23:46,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:23:46,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:23:46,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:23:46,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:23:46,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:23:46,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:23:46,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:23:46,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:23:46,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:23:46,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:23:46,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:23:46,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:23:46,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:23:46,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:23:46,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:23:46,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:23:46,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:23:46,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:23:46,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:23:46,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:23:46,624 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:23:46,645 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:23:46,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:23:46,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:23:46,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:23:46,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:23:46,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:23:46,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:23:46,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:23:46,648 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:23:46,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:23:46,648 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:23:46,648 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:23:46,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:23:46,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:23:46,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:23:46,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:23:46,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:23:46,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:23:46,649 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:23:46,649 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:23:46,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:23:46,650 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:23:46,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:23:46,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:23:46,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:23:46,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:23:46,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:23:46,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:23:46,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:23:46,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:23:46,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:23:46,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:23:46,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:23:46,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:23:46,652 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:23:46,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:23:46,652 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:23:46,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6328ead9c10c029445fd051d7c6329db494c1000fb08b7313fbd69c70835e259 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:23:46,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:23:46,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:23:46,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:23:46,900 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:23:46,900 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:23:46,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_power.opt-thin001_power.opt.i [2023-09-01 05:23:48,571 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:23:48,816 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:23:48,817 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_power.opt-thin001_power.opt.i [2023-09-01 05:23:48,845 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfbe11b4a/229d9484c307438bb26e08e9b58f7d48/FLAG25dabd5ab [2023-09-01 05:23:48,857 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfbe11b4a/229d9484c307438bb26e08e9b58f7d48 [2023-09-01 05:23:48,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:23:48,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:23:48,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:23:48,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:23:48,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:23:48,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:23:48" (1/1) ... [2023-09-01 05:23:48,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610f7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:48, skipping insertion in model container [2023-09-01 05:23:48,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:23:48" (1/1) ... [2023-09-01 05:23:48,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:23:48,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:23:49,037 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/safe007_power.opt-thin001_power.opt.i[969,982] [2023-09-01 05:23:49,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:23:49,195 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:23:49,208 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/safe007_power.opt-thin001_power.opt.i[969,982] [2023-09-01 05:23:49,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:23:49,272 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:23:49,273 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:23:49,277 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:23:49,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49 WrapperNode [2023-09-01 05:23:49,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:23:49,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:23:49,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:23:49,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:23:49,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (1/1) ... [2023-09-01 05:23:49,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (1/1) ... [2023-09-01 05:23:49,310 INFO L138 Inliner]: procedures = 176, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 184 [2023-09-01 05:23:49,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:23:49,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:23:49,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:23:49,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:23:49,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (1/1) ... [2023-09-01 05:23:49,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (1/1) ... [2023-09-01 05:23:49,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (1/1) ... [2023-09-01 05:23:49,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (1/1) ... [2023-09-01 05:23:49,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (1/1) ... [2023-09-01 05:23:49,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (1/1) ... [2023-09-01 05:23:49,330 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (1/1) ... [2023-09-01 05:23:49,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (1/1) ... [2023-09-01 05:23:49,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:23:49,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:23:49,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:23:49,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:23:49,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (1/1) ... [2023-09-01 05:23:49,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:23:49,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:23:49,369 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 05:23:49,385 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 05:23:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 05:23:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:23:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:23:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:23:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:23:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:23:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:23:49,409 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:23:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:23:49,409 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:23:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:23:49,409 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:23:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:23:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:23:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:23:49,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:23:49,411 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 05:23:49,561 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:23:49,562 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:23:49,945 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:23:50,212 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:23:50,213 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:23:50,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:23:50 BoogieIcfgContainer [2023-09-01 05:23:50,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:23:50,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:23:50,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:23:50,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:23:50,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:23:48" (1/3) ... [2023-09-01 05:23:50,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0ad2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:23:50, skipping insertion in model container [2023-09-01 05:23:50,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:23:49" (2/3) ... [2023-09-01 05:23:50,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0ad2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:23:50, skipping insertion in model container [2023-09-01 05:23:50,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:23:50" (3/3) ... [2023-09-01 05:23:50,223 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_power.opt-thin001_power.opt.i [2023-09-01 05:23:50,229 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:23:50,236 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:23:50,236 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 05:23:50,237 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:23:50,311 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:23:50,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 131 transitions, 277 flow [2023-09-01 05:23:50,378 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2023-09-01 05:23:50,379 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:23:50,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-09-01 05:23:50,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 131 transitions, 277 flow [2023-09-01 05:23:50,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 128 transitions, 265 flow [2023-09-01 05:23:50,396 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:23:50,412 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 128 transitions, 265 flow [2023-09-01 05:23:50,419 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 128 transitions, 265 flow [2023-09-01 05:23:50,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 128 transitions, 265 flow [2023-09-01 05:23:50,449 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2023-09-01 05:23:50,450 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:23:50,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-09-01 05:23:50,454 INFO L119 LiptonReduction]: Number of co-enabled transitions 2256 [2023-09-01 05:23:55,895 INFO L134 LiptonReduction]: Checked pairs total: 8736 [2023-09-01 05:23:55,895 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-09-01 05:23:55,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:23:55,909 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;@38d5a472, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:23:55,910 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-09-01 05:23:55,913 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:23:55,913 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:23:55,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:23:55,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:23:55,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:23:55,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:23:55,921 INFO L85 PathProgramCache]: Analyzing trace with hash 773453686, now seen corresponding path program 1 times [2023-09-01 05:23:55,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:23:55,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988632068] [2023-09-01 05:23:55,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:23:55,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:23:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:23:56,191 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 05:23:56,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:23:56,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988632068] [2023-09-01 05:23:56,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988632068] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:23:56,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:23:56,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:23:56,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155813964] [2023-09-01 05:23:56,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:23:56,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:23:56,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:23:56,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:23:56,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:23:56,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 239 [2023-09-01 05:23:56,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 05:23:56,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:23:56,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 239 [2023-09-01 05:23:56,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:23:56,602 INFO L130 PetriNetUnfolder]: 1065/1706 cut-off events. [2023-09-01 05:23:56,602 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-09-01 05:23:56,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3455 conditions, 1706 events. 1065/1706 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 8671 event pairs, 461 based on Foata normal form. 114/1317 useless extension candidates. Maximal degree in co-relation 3444. Up to 1539 conditions per place. [2023-09-01 05:23:56,611 INFO L137 encePairwiseOnDemand]: 227/239 looper letters, 36 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2023-09-01 05:23:56,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 42 transitions, 179 flow [2023-09-01 05:23:56,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:23:56,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:23:56,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2023-09-01 05:23:56,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5244072524407253 [2023-09-01 05:23:56,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2023-09-01 05:23:56,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2023-09-01 05:23:56,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:23:56,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2023-09-01 05:23:56,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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 05:23:56,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 05:23:56,629 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 05:23:56,630 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 67 flow. Second operand 3 states and 376 transitions. [2023-09-01 05:23:56,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 42 transitions, 179 flow [2023-09-01 05:23:56,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 174 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:23:56,633 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 100 flow [2023-09-01 05:23:56,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2023-09-01 05:23:56,637 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-09-01 05:23:56,637 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 100 flow [2023-09-01 05:23:56,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 05:23:56,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:23:56,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:23:56,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:23:56,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:23:56,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:23:56,638 INFO L85 PathProgramCache]: Analyzing trace with hash 755524562, now seen corresponding path program 1 times [2023-09-01 05:23:56,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:23:56,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899555734] [2023-09-01 05:23:56,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:23:56,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:23:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:23:56,719 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 05:23:56,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:23:56,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899555734] [2023-09-01 05:23:56,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899555734] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:23:56,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:23:56,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:23:56,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938129067] [2023-09-01 05:23:56,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:23:56,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:23:56,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:23:56,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:23:56,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:23:56,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 239 [2023-09-01 05:23:56,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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 05:23:56,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:23:56,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 239 [2023-09-01 05:23:56,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:23:56,951 INFO L130 PetriNetUnfolder]: 749/1206 cut-off events. [2023-09-01 05:23:56,951 INFO L131 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2023-09-01 05:23:56,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2975 conditions, 1206 events. 749/1206 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5627 event pairs, 269 based on Foata normal form. 0/1031 useless extension candidates. Maximal degree in co-relation 2964. Up to 1038 conditions per place. [2023-09-01 05:23:56,957 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 33 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2023-09-01 05:23:56,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 188 flow [2023-09-01 05:23:56,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:23:56,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:23:56,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 476 transitions. [2023-09-01 05:23:56,959 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.497907949790795 [2023-09-01 05:23:56,959 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 476 transitions. [2023-09-01 05:23:56,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 476 transitions. [2023-09-01 05:23:56,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:23:56,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 476 transitions. [2023-09-01 05:23:56,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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 05:23:56,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 05:23:56,963 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 05:23:56,963 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 100 flow. Second operand 4 states and 476 transitions. [2023-09-01 05:23:56,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 188 flow [2023-09-01 05:23:56,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 39 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:23:56,965 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 92 flow [2023-09-01 05:23:56,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-09-01 05:23:56,966 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2023-09-01 05:23:56,966 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 92 flow [2023-09-01 05:23:56,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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 05:23:56,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:23:56,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:23:56,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:23:56,967 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:23:56,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:23:56,967 INFO L85 PathProgramCache]: Analyzing trace with hash 755524563, now seen corresponding path program 1 times [2023-09-01 05:23:56,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:23:56,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289251181] [2023-09-01 05:23:56,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:23:56,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:23:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:23:57,059 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 05:23:57,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:23:57,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289251181] [2023-09-01 05:23:57,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289251181] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:23:57,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:23:57,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:23:57,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812568132] [2023-09-01 05:23:57,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:23:57,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:23:57,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:23:57,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:23:57,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:23:57,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 239 [2023-09-01 05:23:57,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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 05:23:57,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:23:57,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 239 [2023-09-01 05:23:57,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:23:57,197 INFO L130 PetriNetUnfolder]: 306/529 cut-off events. [2023-09-01 05:23:57,198 INFO L131 PetriNetUnfolder]: For 163/163 co-relation queries the response was YES. [2023-09-01 05:23:57,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 529 events. 306/529 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2036 event pairs, 107 based on Foata normal form. 26/528 useless extension candidates. Maximal degree in co-relation 1303. Up to 182 conditions per place. [2023-09-01 05:23:57,200 INFO L137 encePairwiseOnDemand]: 231/239 looper letters, 39 selfloop transitions, 7 changer transitions 3/51 dead transitions. [2023-09-01 05:23:57,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 248 flow [2023-09-01 05:23:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:23:57,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:23:57,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 489 transitions. [2023-09-01 05:23:57,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5115062761506276 [2023-09-01 05:23:57,202 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 489 transitions. [2023-09-01 05:23:57,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 489 transitions. [2023-09-01 05:23:57,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:23:57,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 489 transitions. [2023-09-01 05:23:57,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:23:57,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 05:23:57,205 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 05:23:57,205 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 92 flow. Second operand 4 states and 489 transitions. [2023-09-01 05:23:57,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 248 flow [2023-09-01 05:23:57,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 243 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:23:57,208 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 115 flow [2023-09-01 05:23:57,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-09-01 05:23:57,209 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2023-09-01 05:23:57,211 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 115 flow [2023-09-01 05:23:57,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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 05:23:57,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:23:57,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:23:57,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:23:57,213 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:23:57,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:23:57,213 INFO L85 PathProgramCache]: Analyzing trace with hash 623370113, now seen corresponding path program 1 times [2023-09-01 05:23:57,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:23:57,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764902670] [2023-09-01 05:23:57,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:23:57,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:23:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:23:57,356 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 05:23:57,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:23:57,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764902670] [2023-09-01 05:23:57,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764902670] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:23:57,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:23:57,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:23:57,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935362036] [2023-09-01 05:23:57,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:23:57,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:23:57,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:23:57,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:23:57,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:23:57,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 239 [2023-09-01 05:23:57,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 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 05:23:57,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:23:57,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 239 [2023-09-01 05:23:57,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:23:57,474 INFO L130 PetriNetUnfolder]: 250/413 cut-off events. [2023-09-01 05:23:57,475 INFO L131 PetriNetUnfolder]: For 330/330 co-relation queries the response was YES. [2023-09-01 05:23:57,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 413 events. 250/413 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1538 event pairs, 91 based on Foata normal form. 15/419 useless extension candidates. Maximal degree in co-relation 1168. Up to 182 conditions per place. [2023-09-01 05:23:57,476 INFO L137 encePairwiseOnDemand]: 231/239 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2023-09-01 05:23:57,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 209 flow [2023-09-01 05:23:57,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:23:57,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:23:57,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 588 transitions. [2023-09-01 05:23:57,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4920502092050209 [2023-09-01 05:23:57,480 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 588 transitions. [2023-09-01 05:23:57,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 588 transitions. [2023-09-01 05:23:57,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:23:57,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 588 transitions. [2023-09-01 05:23:57,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 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 05:23:57,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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 05:23:57,484 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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 05:23:57,484 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 115 flow. Second operand 5 states and 588 transitions. [2023-09-01 05:23:57,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 209 flow [2023-09-01 05:23:57,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 41 transitions, 185 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-09-01 05:23:57,486 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2023-09-01 05:23:57,487 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2023-09-01 05:23:57,487 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -6 predicate places. [2023-09-01 05:23:57,487 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2023-09-01 05:23:57,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 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 05:23:57,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-09-01 05:23:57,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-09-01 05:23:57,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-09-01 05:23:57,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-09-01 05:23:57,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-09-01 05:23:57,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-09-01 05:23:57,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-09-01 05:23:57,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-09-01 05:23:57,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-09-01 05:23:57,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-09-01 05:23:57,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-09-01 05:23:57,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-09-01 05:23:57,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-09-01 05:23:57,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-09-01 05:23:57,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-09-01 05:23:57,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:23:57,492 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-01 05:23:57,496 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:23:57,497 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:23:57,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:23:57 BasicIcfg [2023-09-01 05:23:57,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:23:57,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:23:57,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:23:57,500 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:23:57,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:23:50" (3/4) ... [2023-09-01 05:23:57,502 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:23:57,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:23:57,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:23:57,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:23:57,509 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2023-09-01 05:23:57,510 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-09-01 05:23:57,510 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 05:23:57,510 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:23:57,545 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:23:57,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:23:57,546 INFO L158 Benchmark]: Toolchain (without parser) took 8685.74ms. Allocated memory was 73.4MB in the beginning and 190.8MB in the end (delta: 117.4MB). Free memory was 49.3MB in the beginning and 93.6MB in the end (delta: -44.2MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2023-09-01 05:23:57,546 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:23:57,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.63ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 42.1MB in the end (delta: 7.1MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2023-09-01 05:23:57,547 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.59ms. Allocated memory is still 73.4MB. Free memory was 42.1MB in the beginning and 39.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:23:57,547 INFO L158 Benchmark]: Boogie Preprocessor took 27.19ms. Allocated memory is still 73.4MB. Free memory was 39.4MB in the beginning and 37.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:23:57,547 INFO L158 Benchmark]: RCFGBuilder took 876.41ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 37.1MB in the beginning and 45.4MB in the end (delta: -8.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-09-01 05:23:57,547 INFO L158 Benchmark]: TraceAbstraction took 7282.32ms. Allocated memory was 88.1MB in the beginning and 190.8MB in the end (delta: 102.8MB). Free memory was 44.3MB in the beginning and 96.7MB in the end (delta: -52.4MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2023-09-01 05:23:57,548 INFO L158 Benchmark]: Witness Printer took 45.82ms. Allocated memory is still 190.8MB. Free memory was 96.7MB in the beginning and 93.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:23:57,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.63ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 42.1MB in the end (delta: 7.1MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.59ms. Allocated memory is still 73.4MB. Free memory was 42.1MB in the beginning and 39.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.19ms. Allocated memory is still 73.4MB. Free memory was 39.4MB in the beginning and 37.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 876.41ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 37.1MB in the beginning and 45.4MB in the end (delta: -8.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7282.32ms. Allocated memory was 88.1MB in the beginning and 190.8MB in the end (delta: 102.8MB). Free memory was 44.3MB in the beginning and 96.7MB in the end (delta: -52.4MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. * Witness Printer took 45.82ms. Allocated memory is still 190.8MB. Free memory was 96.7MB in the beginning and 93.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5s, 136 PlacesBefore, 38 PlacesAfterwards, 128 TransitionsBefore, 29 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 8 FixpointIterations, 58 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 108 TotalNumberOfCompositions, 8736 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3710, independent: 3399, independent conditional: 0, independent unconditional: 3399, dependent: 311, dependent conditional: 0, dependent unconditional: 311, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1213, independent: 1164, independent conditional: 0, independent unconditional: 1164, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3710, independent: 2235, independent conditional: 0, independent unconditional: 2235, dependent: 262, dependent conditional: 0, dependent unconditional: 262, unknown: 1213, unknown conditional: 0, unknown unconditional: 1213] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 144, Positive conditional cache size: 0, Positive unconditional cache size: 144, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 162 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 10 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:23:57,575 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