./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.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 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 12:56:30,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:56:30,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:56:30,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:56:30,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:56:30,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:56:30,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:56:30,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:56:30,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:56:30,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:56:30,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:56:30,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:56:30,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:56:30,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:56:30,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:56:30,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:56:30,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:56:30,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:56:30,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:56:30,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:56:30,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:56:30,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:56:30,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:56:30,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:56:30,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:56:30,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:56:30,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:56:30,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:56:30,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:56:30,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:56:30,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:56:30,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:56:30,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:56:30,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:56:30,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:56:30,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:56:30,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:56:30,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:56:30,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:56:30,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:56:30,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:56:30,543 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:56:30,563 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:56:30,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:56:30,564 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:56:30,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:56:30,565 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:56:30,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:56:30,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:56:30,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:56:30,566 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:56:30,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:56:30,567 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:56:30,567 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:56:30,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:56:30,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:56:30,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:56:30,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:56:30,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:56:30,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:56:30,568 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:56:30,568 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:56:30,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:56:30,568 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:56:30,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:56:30,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:56:30,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:56:30,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:56:30,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:56:30,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:56:30,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:56:30,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:56:30,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:56:30,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:56:30,570 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:56:30,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:56:30,570 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:56:30,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:56:30,571 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:56:30,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 12:56:30,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:56:30,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:56:30,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:56:30,821 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:56:30,822 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:56:30,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2023-08-30 12:56:31,805 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:56:32,039 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:56:32,040 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2023-08-30 12:56:32,055 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7108c2699/83f8bdac4f9849848c87d48d552b43c5/FLAG1cb4b95a6 [2023-08-30 12:56:32,067 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7108c2699/83f8bdac4f9849848c87d48d552b43c5 [2023-08-30 12:56:32,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:56:32,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:56:32,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:56:32,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:56:32,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:56:32,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65812f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32, skipping insertion in model container [2023-08-30 12:56:32,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:56:32,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:56:32,248 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/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-08-30 12:56:32,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:56:32,415 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:56:32,425 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/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-08-30 12:56:32,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:56:32,519 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:56:32,520 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:56:32,524 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:56:32,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32 WrapperNode [2023-08-30 12:56:32,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:56:32,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:56:32,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:56:32,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:56:32,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,575 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2023-08-30 12:56:32,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:56:32,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:56:32,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:56:32,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:56:32,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,613 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:56:32,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:56:32,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:56:32,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:56:32,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (1/1) ... [2023-08-30 12:56:32,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:56:32,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:56:32,649 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 12:56:32,664 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 12:56:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 12:56:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 12:56:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:56:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:56:32,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:56:32,677 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 12:56:32,677 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 12:56:32,677 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 12:56:32,677 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 12:56:32,677 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 12:56:32,677 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 12:56:32,677 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 12:56:32,678 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 12:56:32,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 12:56:32,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 12:56:32,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:56:32,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:56:32,679 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 12:56:32,802 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:56:32,804 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:56:33,078 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:56:33,210 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:56:33,211 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 12:56:33,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:56:33 BoogieIcfgContainer [2023-08-30 12:56:33,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:56:33,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:56:33,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:56:33,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:56:33,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:56:32" (1/3) ... [2023-08-30 12:56:33,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dcf577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:56:33, skipping insertion in model container [2023-08-30 12:56:33,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:32" (2/3) ... [2023-08-30 12:56:33,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dcf577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:56:33, skipping insertion in model container [2023-08-30 12:56:33,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:56:33" (3/3) ... [2023-08-30 12:56:33,217 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_power.oepc_pso.oepc_rmo.oepc.i [2023-08-30 12:56:33,222 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:56:33,228 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:56:33,228 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 12:56:33,228 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:56:33,266 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 12:56:33,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 138 transitions, 296 flow [2023-08-30 12:56:33,333 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2023-08-30 12:56:33,333 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:56:33,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-30 12:56:33,339 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 138 transitions, 296 flow [2023-08-30 12:56:33,343 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 134 transitions, 280 flow [2023-08-30 12:56:33,353 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 12:56:33,363 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 134 transitions, 280 flow [2023-08-30 12:56:33,366 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 134 transitions, 280 flow [2023-08-30 12:56:33,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 134 transitions, 280 flow [2023-08-30 12:56:33,390 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2023-08-30 12:56:33,390 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:56:33,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-30 12:56:33,392 INFO L119 LiptonReduction]: Number of co-enabled transitions 4132 [2023-08-30 12:56:36,403 INFO L134 LiptonReduction]: Checked pairs total: 16063 [2023-08-30 12:56:36,403 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-08-30 12:56:36,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 12:56:36,416 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;@46b69378, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 12:56:36,416 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 12:56:36,419 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 12:56:36,419 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:56:36,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:56:36,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 12:56:36,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:56:36,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:56:36,423 INFO L85 PathProgramCache]: Analyzing trace with hash 230640679, now seen corresponding path program 1 times [2023-08-30 12:56:36,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:56:36,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496608969] [2023-08-30 12:56:36,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:56:36,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:56:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:56:36,633 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 12:56:36,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:56:36,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496608969] [2023-08-30 12:56:36,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496608969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:56:36,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:56:36,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 12:56:36,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007040769] [2023-08-30 12:56:36,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:56:36,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:56:36,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:56:36,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:56:36,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:56:36,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 243 [2023-08-30 12:56:36,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 12:56:36,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:56:36,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 243 [2023-08-30 12:56:36,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:56:37,848 INFO L130 PetriNetUnfolder]: 9717/13531 cut-off events. [2023-08-30 12:56:37,848 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2023-08-30 12:56:37,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27305 conditions, 13531 events. 9717/13531 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 76251 event pairs, 2763 based on Foata normal form. 0/10151 useless extension candidates. Maximal degree in co-relation 27293. Up to 11755 conditions per place. [2023-08-30 12:56:37,914 INFO L137 encePairwiseOnDemand]: 229/243 looper letters, 49 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-08-30 12:56:37,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 59 transitions, 247 flow [2023-08-30 12:56:37,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:56:37,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:56:37,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-08-30 12:56:37,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5445816186556928 [2023-08-30 12:56:37,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-08-30 12:56:37,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-08-30 12:56:37,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:56:37,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-08-30 12:56:37,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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 12:56:37,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 243.0) internal successors, (972), 4 states have internal predecessors, (972), 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 12:56:37,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 243.0) internal successors, (972), 4 states have internal predecessors, (972), 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 12:56:37,934 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 88 flow. Second operand 3 states and 397 transitions. [2023-08-30 12:56:37,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 59 transitions, 247 flow [2023-08-30 12:56:37,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 59 transitions, 240 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 12:56:37,939 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 129 flow [2023-08-30 12:56:37,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-08-30 12:56:37,942 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-08-30 12:56:37,943 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 129 flow [2023-08-30 12:56:37,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 12:56:37,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:56:37,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:56:37,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 12:56:37,944 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:56:37,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:56:37,944 INFO L85 PathProgramCache]: Analyzing trace with hash 734733081, now seen corresponding path program 1 times [2023-08-30 12:56:37,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:56:37,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067557744] [2023-08-30 12:56:37,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:56:37,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:56:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:56:38,015 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 12:56:38,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:56:38,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067557744] [2023-08-30 12:56:38,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067557744] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:56:38,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:56:38,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:56:38,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326316764] [2023-08-30 12:56:38,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:56:38,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:56:38,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:56:38,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:56:38,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:56:38,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 243 [2023-08-30 12:56:38,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 113.5) internal successors, (454), 4 states have internal predecessors, (454), 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 12:56:38,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:56:38,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 243 [2023-08-30 12:56:38,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:56:38,789 INFO L130 PetriNetUnfolder]: 6207/8629 cut-off events. [2023-08-30 12:56:38,790 INFO L131 PetriNetUnfolder]: For 487/487 co-relation queries the response was YES. [2023-08-30 12:56:38,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20936 conditions, 8629 events. 6207/8629 cut-off events. For 487/487 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 46255 event pairs, 1715 based on Foata normal form. 0/7425 useless extension candidates. Maximal degree in co-relation 20925. Up to 6852 conditions per place. [2023-08-30 12:56:38,827 INFO L137 encePairwiseOnDemand]: 234/243 looper letters, 45 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2023-08-30 12:56:38,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 55 transitions, 255 flow [2023-08-30 12:56:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:56:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:56:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 498 transitions. [2023-08-30 12:56:38,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5123456790123457 [2023-08-30 12:56:38,830 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 498 transitions. [2023-08-30 12:56:38,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 498 transitions. [2023-08-30 12:56:38,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:56:38,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 498 transitions. [2023-08-30 12:56:38,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 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 12:56:38,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 243.0) internal successors, (1215), 5 states have internal predecessors, (1215), 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 12:56:38,834 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 243.0) internal successors, (1215), 5 states have internal predecessors, (1215), 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 12:56:38,834 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 129 flow. Second operand 4 states and 498 transitions. [2023-08-30 12:56:38,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 55 transitions, 255 flow [2023-08-30 12:56:38,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 55 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:56:38,836 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 118 flow [2023-08-30 12:56:38,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2023-08-30 12:56:38,836 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-08-30 12:56:38,837 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 118 flow [2023-08-30 12:56:38,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.5) internal successors, (454), 4 states have internal predecessors, (454), 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 12:56:38,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:56:38,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:56:38,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 12:56:38,838 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:56:38,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:56:38,838 INFO L85 PathProgramCache]: Analyzing trace with hash 734733082, now seen corresponding path program 1 times [2023-08-30 12:56:38,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:56:38,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720632134] [2023-08-30 12:56:38,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:56:38,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:56:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:56:38,904 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 12:56:38,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:56:38,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720632134] [2023-08-30 12:56:38,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720632134] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:56:38,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:56:38,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:56:38,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65730041] [2023-08-30 12:56:38,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:56:38,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:56:38,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:56:38,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:56:38,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:56:38,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 243 [2023-08-30 12:56:38,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 113.5) internal successors, (454), 4 states have internal predecessors, (454), 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 12:56:38,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:56:38,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 243 [2023-08-30 12:56:38,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:56:39,488 INFO L130 PetriNetUnfolder]: 4260/5960 cut-off events. [2023-08-30 12:56:39,488 INFO L131 PetriNetUnfolder]: For 1582/1582 co-relation queries the response was YES. [2023-08-30 12:56:39,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14265 conditions, 5960 events. 4260/5960 cut-off events. For 1582/1582 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 30992 event pairs, 1261 based on Foata normal form. 0/5675 useless extension candidates. Maximal degree in co-relation 14253. Up to 2277 conditions per place. [2023-08-30 12:56:39,508 INFO L137 encePairwiseOnDemand]: 234/243 looper letters, 61 selfloop transitions, 9 changer transitions 0/75 dead transitions. [2023-08-30 12:56:39,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 75 transitions, 352 flow [2023-08-30 12:56:39,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:56:39,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:56:39,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 518 transitions. [2023-08-30 12:56:39,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5329218106995884 [2023-08-30 12:56:39,510 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 518 transitions. [2023-08-30 12:56:39,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 518 transitions. [2023-08-30 12:56:39,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:56:39,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 518 transitions. [2023-08-30 12:56:39,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 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 12:56:39,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 243.0) internal successors, (1215), 5 states have internal predecessors, (1215), 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 12:56:39,513 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 243.0) internal successors, (1215), 5 states have internal predecessors, (1215), 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 12:56:39,513 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 118 flow. Second operand 4 states and 518 transitions. [2023-08-30 12:56:39,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 75 transitions, 352 flow [2023-08-30 12:56:39,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 75 transitions, 346 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 12:56:39,515 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 170 flow [2023-08-30 12:56:39,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-08-30 12:56:39,516 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-08-30 12:56:39,516 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 170 flow [2023-08-30 12:56:39,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.5) internal successors, (454), 4 states have internal predecessors, (454), 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 12:56:39,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:56:39,517 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:56:39,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 12:56:39,517 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:56:39,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:56:39,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1362705422, now seen corresponding path program 1 times [2023-08-30 12:56:39,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:56:39,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175403793] [2023-08-30 12:56:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:56:39,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:56:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:56:39,591 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 12:56:39,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:56:39,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175403793] [2023-08-30 12:56:39,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175403793] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:56:39,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:56:39,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 12:56:39,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875865496] [2023-08-30 12:56:39,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:56:39,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 12:56:39,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:56:39,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 12:56:39,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 12:56:39,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 243 [2023-08-30 12:56:39,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 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 12:56:39,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:56:39,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 243 [2023-08-30 12:56:39,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:56:40,132 INFO L130 PetriNetUnfolder]: 3939/5453 cut-off events. [2023-08-30 12:56:40,133 INFO L131 PetriNetUnfolder]: For 3285/3285 co-relation queries the response was YES. [2023-08-30 12:56:40,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14878 conditions, 5453 events. 3939/5453 cut-off events. For 3285/3285 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 28032 event pairs, 1217 based on Foata normal form. 0/5378 useless extension candidates. Maximal degree in co-relation 14865. Up to 2277 conditions per place. [2023-08-30 12:56:40,151 INFO L137 encePairwiseOnDemand]: 234/243 looper letters, 71 selfloop transitions, 13 changer transitions 4/93 dead transitions. [2023-08-30 12:56:40,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 93 transitions, 478 flow [2023-08-30 12:56:40,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 12:56:40,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 12:56:40,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 647 transitions. [2023-08-30 12:56:40,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5325102880658437 [2023-08-30 12:56:40,154 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 647 transitions. [2023-08-30 12:56:40,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 647 transitions. [2023-08-30 12:56:40,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:56:40,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 647 transitions. [2023-08-30 12:56:40,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 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 12:56:40,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 243.0) internal successors, (1458), 6 states have internal predecessors, (1458), 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 12:56:40,157 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 243.0) internal successors, (1458), 6 states have internal predecessors, (1458), 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 12:56:40,158 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 170 flow. Second operand 5 states and 647 transitions. [2023-08-30 12:56:40,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 93 transitions, 478 flow [2023-08-30 12:56:40,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 93 transitions, 460 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 12:56:40,163 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 194 flow [2023-08-30 12:56:40,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2023-08-30 12:56:40,164 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2023-08-30 12:56:40,164 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 194 flow [2023-08-30 12:56:40,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 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 12:56:40,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:56:40,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:56:40,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 12:56:40,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:56:40,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:56:40,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1574555778, now seen corresponding path program 1 times [2023-08-30 12:56:40,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:56:40,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832896224] [2023-08-30 12:56:40,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:56:40,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:56:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:56:40,274 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 12:56:40,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:56:40,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832896224] [2023-08-30 12:56:40,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832896224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:56:40,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:56:40,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 12:56:40,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812905106] [2023-08-30 12:56:40,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:56:40,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 12:56:40,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:56:40,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 12:56:40,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 12:56:40,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 243 [2023-08-30 12:56:40,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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 12:56:40,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:56:40,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 243 [2023-08-30 12:56:40,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:56:40,796 INFO L130 PetriNetUnfolder]: 3912/5406 cut-off events. [2023-08-30 12:56:40,796 INFO L131 PetriNetUnfolder]: For 3991/3991 co-relation queries the response was YES. [2023-08-30 12:56:40,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15109 conditions, 5406 events. 3912/5406 cut-off events. For 3991/3991 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 27776 event pairs, 1217 based on Foata normal form. 16/5363 useless extension candidates. Maximal degree in co-relation 15095. Up to 2277 conditions per place. [2023-08-30 12:56:40,805 INFO L137 encePairwiseOnDemand]: 234/243 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2023-08-30 12:56:40,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 85 transitions, 430 flow [2023-08-30 12:56:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 12:56:40,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 12:56:40,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 750 transitions. [2023-08-30 12:56:40,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.51440329218107 [2023-08-30 12:56:40,807 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 750 transitions. [2023-08-30 12:56:40,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 750 transitions. [2023-08-30 12:56:40,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:56:40,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 750 transitions. [2023-08-30 12:56:40,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 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 12:56:40,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 243.0) internal successors, (1701), 7 states have internal predecessors, (1701), 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 12:56:40,811 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 243.0) internal successors, (1701), 7 states have internal predecessors, (1701), 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 12:56:40,811 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 194 flow. Second operand 6 states and 750 transitions. [2023-08-30 12:56:40,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 85 transitions, 430 flow [2023-08-30 12:56:40,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 85 transitions, 375 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 12:56:40,875 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-08-30 12:56:40,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-08-30 12:56:40,876 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-08-30 12:56:40,876 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-08-30 12:56:40,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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 12:56:40,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 12:56:40,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 12:56:40,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 12:56:40,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 12:56:40,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 12:56:40,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 12:56:40,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 12:56:40,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 12:56:40,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 12:56:40,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 12:56:40,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 12:56:40,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 12:56:40,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 12:56:40,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 12:56:40,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 12:56:40,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 12:56:40,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 12:56:40,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 12:56:40,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 12:56:40,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 12:56:40,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 12:56:40,880 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 12:56:40,883 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 12:56:40,883 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 12:56:40,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 12:56:40 BasicIcfg [2023-08-30 12:56:40,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 12:56:40,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 12:56:40,888 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 12:56:40,888 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 12:56:40,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:56:33" (3/4) ... [2023-08-30 12:56:40,889 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 12:56:40,894 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 12:56:40,894 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 12:56:40,894 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 12:56:40,894 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 12:56:40,899 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-08-30 12:56:40,899 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 12:56:40,899 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 12:56:40,899 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 12:56:40,933 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 12:56:40,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 12:56:40,934 INFO L158 Benchmark]: Toolchain (without parser) took 8863.44ms. Allocated memory was 75.5MB in the beginning and 926.9MB in the end (delta: 851.4MB). Free memory was 52.0MB in the beginning and 721.9MB in the end (delta: -669.9MB). Peak memory consumption was 183.6MB. Max. memory is 16.1GB. [2023-08-30 12:56:40,934 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 75.5MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:56:40,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.71ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 51.7MB in the beginning and 74.3MB in the end (delta: -22.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2023-08-30 12:56:40,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.99ms. Allocated memory is still 98.6MB. Free memory was 74.3MB in the beginning and 71.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:56:40,935 INFO L158 Benchmark]: Boogie Preprocessor took 47.14ms. Allocated memory is still 98.6MB. Free memory was 71.7MB in the beginning and 69.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:56:40,936 INFO L158 Benchmark]: RCFGBuilder took 587.22ms. Allocated memory is still 98.6MB. Free memory was 69.6MB in the beginning and 63.4MB in the end (delta: 6.2MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2023-08-30 12:56:40,936 INFO L158 Benchmark]: TraceAbstraction took 7673.60ms. Allocated memory was 98.6MB in the beginning and 926.9MB in the end (delta: 828.4MB). Free memory was 62.8MB in the beginning and 725.1MB in the end (delta: -662.3MB). Peak memory consumption was 634.9MB. Max. memory is 16.1GB. [2023-08-30 12:56:40,936 INFO L158 Benchmark]: Witness Printer took 45.85ms. Allocated memory is still 926.9MB. Free memory was 725.1MB in the beginning and 721.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:56:40,938 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 75.5MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.71ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 51.7MB in the beginning and 74.3MB in the end (delta: -22.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.99ms. Allocated memory is still 98.6MB. Free memory was 74.3MB in the beginning and 71.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.14ms. Allocated memory is still 98.6MB. Free memory was 71.7MB in the beginning and 69.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 587.22ms. Allocated memory is still 98.6MB. Free memory was 69.6MB in the beginning and 63.4MB in the end (delta: 6.2MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7673.60ms. Allocated memory was 98.6MB in the beginning and 926.9MB in the end (delta: 828.4MB). Free memory was 62.8MB in the beginning and 725.1MB in the end (delta: -662.3MB). Peak memory consumption was 634.9MB. Max. memory is 16.1GB. * Witness Printer took 45.85ms. Allocated memory is still 926.9MB. Free memory was 725.1MB in the beginning and 721.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 145 PlacesBefore, 50 PlacesAfterwards, 134 TransitionsBefore, 38 TransitionsAfterwards, 4132 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 105 TotalNumberOfCompositions, 16063 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4653, independent: 4270, independent conditional: 0, independent unconditional: 4270, dependent: 383, dependent conditional: 0, dependent unconditional: 383, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2155, independent: 2075, independent conditional: 0, independent unconditional: 2075, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4653, independent: 2195, independent conditional: 0, independent unconditional: 2195, dependent: 303, dependent conditional: 0, dependent unconditional: 303, unknown: 2155, unknown conditional: 0, unknown unconditional: 2155] , Statistics on independence cache: Total cache size (in pairs): 256, Positive cache size: 229, Positive conditional cache size: 0, Positive unconditional cache size: 229, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: 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 9 procedures, 183 locations, 20 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: 7.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 250 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 454 IncrementalHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 6 mSDtfsCounter, 454 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 12:56:40,964 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