./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix004.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/mix004.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 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d --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 05:12:20,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:12:20,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:12:20,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:12:20,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:12:20,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:12:20,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:12:20,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:12:20,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:12:20,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:12:20,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:12:20,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:12:20,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:12:20,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:12:20,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:12:20,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:12:20,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:12:20,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:12:20,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:12:20,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:12:20,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:12:20,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:12:20,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:12:20,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:12:20,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:12:20,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:12:20,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:12:20,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:12:20,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:12:20,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:12:20,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:12:20,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:12:20,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:12:20,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:12:20,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:12:20,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:12:20,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:12:20,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:12:20,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:12:20,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:12:20,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:12:20,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:12:20,869 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:12:20,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:12:20,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:12:20,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:12:20,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:12:20,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:12:20,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:12:20,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:12:20,873 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:12:20,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:12:20,874 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:12:20,874 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:12:20,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:12:20,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:12:20,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:12:20,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:12:20,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:12:20,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:12:20,875 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:12:20,875 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:12:20,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:12:20,876 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:12:20,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:12:20,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:12:20,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:12:20,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:12:20,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:12:20,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:12:20,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:12:20,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:12:20,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:12:20,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:12:20,878 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:12:20,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:12:20,879 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:12:20,879 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:12:20,879 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:12:20,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:12:21,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:12:21,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:12:21,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:12:21,184 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:12:21,184 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:12:21,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix004.opt.i [2023-09-01 05:12:22,462 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:12:22,783 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:12:22,791 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix004.opt.i [2023-09-01 05:12:22,804 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a3cba73/317817ad5e684fe48b080719a6ff27de/FLAGd067be3ef [2023-09-01 05:12:22,818 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a3cba73/317817ad5e684fe48b080719a6ff27de [2023-09-01 05:12:22,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:12:22,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:12:22,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:12:22,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:12:22,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:12:22,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:12:22" (1/1) ... [2023-09-01 05:12:22,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e14852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:22, skipping insertion in model container [2023-09-01 05:12:22,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:12:22" (1/1) ... [2023-09-01 05:12:22,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:12:22,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:12:23,090 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/mix004.opt.i[944,957] [2023-09-01 05:12:23,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:12:23,350 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:12:23,365 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/mix004.opt.i[944,957] [2023-09-01 05:12:23,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:12:23,533 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:12:23,534 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:12:23,540 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:12:23,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23 WrapperNode [2023-09-01 05:12:23,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:12:23,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:12:23,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:12:23,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:12:23,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (1/1) ... [2023-09-01 05:12:23,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (1/1) ... [2023-09-01 05:12:23,612 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 169 [2023-09-01 05:12:23,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:12:23,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:12:23,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:12:23,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:12:23,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (1/1) ... [2023-09-01 05:12:23,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (1/1) ... [2023-09-01 05:12:23,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (1/1) ... [2023-09-01 05:12:23,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (1/1) ... [2023-09-01 05:12:23,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (1/1) ... [2023-09-01 05:12:23,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (1/1) ... [2023-09-01 05:12:23,668 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (1/1) ... [2023-09-01 05:12:23,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (1/1) ... [2023-09-01 05:12:23,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:12:23,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:12:23,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:12:23,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:12:23,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (1/1) ... [2023-09-01 05:12:23,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:12:23,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:12:23,711 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 05:12:23,741 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 05:12:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:12:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:12:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:12:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:12:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:12:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:12:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:12:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:12:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:12:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:12:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:12:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-09-01 05:12:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-09-01 05:12:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:12:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:12:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:12:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:12:23,762 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 05:12:23,934 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:12:23,941 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:12:24,288 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:12:24,538 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:12:24,538 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:12:24,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:12:24 BoogieIcfgContainer [2023-09-01 05:12:24,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:12:24,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:12:24,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:12:24,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:12:24,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:12:22" (1/3) ... [2023-09-01 05:12:24,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e82d4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:12:24, skipping insertion in model container [2023-09-01 05:12:24,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:12:23" (2/3) ... [2023-09-01 05:12:24,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e82d4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:12:24, skipping insertion in model container [2023-09-01 05:12:24,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:12:24" (3/3) ... [2023-09-01 05:12:24,550 INFO L112 eAbstractionObserver]: Analyzing ICFG mix004.opt.i [2023-09-01 05:12:24,557 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:12:24,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:12:24,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 05:12:24,566 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:12:24,633 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:12:24,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 137 transitions, 294 flow [2023-09-01 05:12:24,767 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2023-09-01 05:12:24,770 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:12:24,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-09-01 05:12:24,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 137 transitions, 294 flow [2023-09-01 05:12:24,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 133 transitions, 278 flow [2023-09-01 05:12:24,793 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:12:24,806 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 133 transitions, 278 flow [2023-09-01 05:12:24,810 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 133 transitions, 278 flow [2023-09-01 05:12:24,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 133 transitions, 278 flow [2023-09-01 05:12:24,839 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2023-09-01 05:12:24,841 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:12:24,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-09-01 05:12:24,846 INFO L119 LiptonReduction]: Number of co-enabled transitions 3702 [2023-09-01 05:12:28,879 INFO L134 LiptonReduction]: Checked pairs total: 12532 [2023-09-01 05:12:28,879 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-09-01 05:12:28,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:12:28,899 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;@5538519c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:12:28,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-09-01 05:12:28,902 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:12:28,902 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:12:28,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:12:28,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:12:28,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:12:28,908 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:12:28,908 INFO L85 PathProgramCache]: Analyzing trace with hash 567324479, now seen corresponding path program 1 times [2023-09-01 05:12:28,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:12:28,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353774502] [2023-09-01 05:12:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:12:28,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:12:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:12:29,149 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 05:12:29,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:12:29,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353774502] [2023-09-01 05:12:29,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353774502] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:12:29,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:12:29,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:12:29,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414654168] [2023-09-01 05:12:29,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:12:29,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:12:29,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:12:29,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:12:29,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:12:29,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 244 [2023-09-01 05:12:29,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 05:12:29,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:12:29,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 244 [2023-09-01 05:12:29,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:12:30,273 INFO L130 PetriNetUnfolder]: 6649/9350 cut-off events. [2023-09-01 05:12:30,274 INFO L131 PetriNetUnfolder]: For 81/81 co-relation queries the response was YES. [2023-09-01 05:12:30,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18872 conditions, 9350 events. 6649/9350 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 53388 event pairs, 1861 based on Foata normal form. 0/6575 useless extension candidates. Maximal degree in co-relation 18860. Up to 8623 conditions per place. [2023-09-01 05:12:30,346 INFO L137 encePairwiseOnDemand]: 230/244 looper letters, 45 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2023-09-01 05:12:30,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 54 transitions, 229 flow [2023-09-01 05:12:30,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:12:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:12:30,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2023-09-01 05:12:30,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5409836065573771 [2023-09-01 05:12:30,366 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2023-09-01 05:12:30,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2023-09-01 05:12:30,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:12:30,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2023-09-01 05:12:30,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:12:30,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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 05:12:30,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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 05:12:30,385 INFO L175 Difference]: Start difference. First operand has 47 places, 35 transitions, 82 flow. Second operand 3 states and 396 transitions. [2023-09-01 05:12:30,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 54 transitions, 229 flow [2023-09-01 05:12:30,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 222 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 05:12:30,396 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 123 flow [2023-09-01 05:12:30,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2023-09-01 05:12:30,402 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2023-09-01 05:12:30,404 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 123 flow [2023-09-01 05:12:30,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 05:12:30,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:12:30,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:12:30,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:12:30,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:12:30,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:12:30,409 INFO L85 PathProgramCache]: Analyzing trace with hash -489546616, now seen corresponding path program 1 times [2023-09-01 05:12:30,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:12:30,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374157722] [2023-09-01 05:12:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:12:30,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:12:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:12:30,554 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 05:12:30,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:12:30,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374157722] [2023-09-01 05:12:30,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374157722] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:12:30,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:12:30,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:12:30,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310645553] [2023-09-01 05:12:30,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:12:30,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:12:30,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:12:30,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:12:30,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:12:30,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 244 [2023-09-01 05:12:30,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 05:12:30,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:12:30,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 244 [2023-09-01 05:12:30,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:12:31,286 INFO L130 PetriNetUnfolder]: 3813/5378 cut-off events. [2023-09-01 05:12:31,286 INFO L131 PetriNetUnfolder]: For 318/318 co-relation queries the response was YES. [2023-09-01 05:12:31,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13383 conditions, 5378 events. 3813/5378 cut-off events. For 318/318 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 27691 event pairs, 909 based on Foata normal form. 0/4449 useless extension candidates. Maximal degree in co-relation 13372. Up to 4650 conditions per place. [2023-09-01 05:12:31,321 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 41 selfloop transitions, 5 changer transitions 0/50 dead transitions. [2023-09-01 05:12:31,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 50 transitions, 237 flow [2023-09-01 05:12:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:12:31,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:12:31,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 498 transitions. [2023-09-01 05:12:31,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5102459016393442 [2023-09-01 05:12:31,324 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 498 transitions. [2023-09-01 05:12:31,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 498 transitions. [2023-09-01 05:12:31,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:12:31,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 498 transitions. [2023-09-01 05:12:31,326 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) [2023-09-01 05:12:31,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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 05:12:31,329 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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 05:12:31,329 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 123 flow. Second operand 4 states and 498 transitions. [2023-09-01 05:12:31,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 50 transitions, 237 flow [2023-09-01 05:12:31,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:12:31,331 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 112 flow [2023-09-01 05:12:31,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2023-09-01 05:12:31,332 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2023-09-01 05:12:31,333 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 112 flow [2023-09-01 05:12:31,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 05:12:31,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:12:31,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:12:31,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:12:31,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:12:31,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:12:31,334 INFO L85 PathProgramCache]: Analyzing trace with hash -489546615, now seen corresponding path program 1 times [2023-09-01 05:12:31,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:12:31,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324481444] [2023-09-01 05:12:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:12:31,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:12:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:12:31,385 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 05:12:31,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:12:31,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324481444] [2023-09-01 05:12:31,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324481444] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:12:31,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:12:31,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:12:31,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801380281] [2023-09-01 05:12:31,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:12:31,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:12:31,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:12:31,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:12:31,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:12:31,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 244 [2023-09-01 05:12:31,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 05:12:31,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:12:31,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 244 [2023-09-01 05:12:31,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:12:31,869 INFO L130 PetriNetUnfolder]: 2366/3393 cut-off events. [2023-09-01 05:12:31,869 INFO L131 PetriNetUnfolder]: For 982/982 co-relation queries the response was YES. [2023-09-01 05:12:31,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8344 conditions, 3393 events. 2366/3393 cut-off events. For 982/982 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 16155 event pairs, 511 based on Foata normal form. 0/3172 useless extension candidates. Maximal degree in co-relation 8332. Up to 1450 conditions per place. [2023-09-01 05:12:31,889 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 55 selfloop transitions, 9 changer transitions 0/68 dead transitions. [2023-09-01 05:12:31,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 68 transitions, 326 flow [2023-09-01 05:12:31,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:12:31,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:12:31,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2023-09-01 05:12:31,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5286885245901639 [2023-09-01 05:12:31,892 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 516 transitions. [2023-09-01 05:12:31,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 516 transitions. [2023-09-01 05:12:31,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:12:31,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 516 transitions. [2023-09-01 05:12:31,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 05:12:31,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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 05:12:31,896 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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 05:12:31,897 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 112 flow. Second operand 4 states and 516 transitions. [2023-09-01 05:12:31,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 68 transitions, 326 flow [2023-09-01 05:12:31,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 68 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:12:31,899 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 164 flow [2023-09-01 05:12:31,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2023-09-01 05:12:31,900 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2023-09-01 05:12:31,901 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 164 flow [2023-09-01 05:12:31,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 05:12:31,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:12:31,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:12:31,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:12:31,902 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:12:31,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:12:31,902 INFO L85 PathProgramCache]: Analyzing trace with hash 334023432, now seen corresponding path program 1 times [2023-09-01 05:12:31,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:12:31,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816288189] [2023-09-01 05:12:31,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:12:31,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:12:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:12:32,011 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 05:12:32,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:12:32,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816288189] [2023-09-01 05:12:32,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816288189] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:12:32,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:12:32,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:12:32,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361829900] [2023-09-01 05:12:32,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:12:32,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:12:32,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:12:32,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:12:32,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:12:32,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 244 [2023-09-01 05:12:32,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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 05:12:32,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:12:32,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 244 [2023-09-01 05:12:32,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:12:32,450 INFO L130 PetriNetUnfolder]: 2087/2952 cut-off events. [2023-09-01 05:12:32,451 INFO L131 PetriNetUnfolder]: For 1992/1992 co-relation queries the response was YES. [2023-09-01 05:12:32,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8507 conditions, 2952 events. 2087/2952 cut-off events. For 1992/1992 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13519 event pairs, 467 based on Foata normal form. 0/2917 useless extension candidates. Maximal degree in co-relation 8494. Up to 1216 conditions per place. [2023-09-01 05:12:32,467 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 63 selfloop transitions, 13 changer transitions 4/84 dead transitions. [2023-09-01 05:12:32,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 84 transitions, 444 flow [2023-09-01 05:12:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:12:32,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:12:32,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 644 transitions. [2023-09-01 05:12:32,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5278688524590164 [2023-09-01 05:12:32,470 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 644 transitions. [2023-09-01 05:12:32,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 644 transitions. [2023-09-01 05:12:32,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:12:32,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 644 transitions. [2023-09-01 05:12:32,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 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 05:12:32,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 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 05:12:32,475 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 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 05:12:32,475 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 164 flow. Second operand 5 states and 644 transitions. [2023-09-01 05:12:32,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 84 transitions, 444 flow [2023-09-01 05:12:32,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 84 transitions, 426 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-09-01 05:12:32,481 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 188 flow [2023-09-01 05:12:32,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=188, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2023-09-01 05:12:32,482 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2023-09-01 05:12:32,482 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 188 flow [2023-09-01 05:12:32,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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 05:12:32,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:12:32,483 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] [2023-09-01 05:12:32,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:12:32,484 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:12:32,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:12:32,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1606664332, now seen corresponding path program 1 times [2023-09-01 05:12:32,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:12:32,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073247688] [2023-09-01 05:12:32,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:12:32,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:12:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:12:32,613 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 05:12:32,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:12:32,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073247688] [2023-09-01 05:12:32,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073247688] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:12:32,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:12:32,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:12:32,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961560948] [2023-09-01 05:12:32,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:12:32,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:12:32,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:12:32,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:12:32,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:12:32,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 244 [2023-09-01 05:12:32,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 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 05:12:32,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:12:32,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 244 [2023-09-01 05:12:32,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:12:33,099 INFO L130 PetriNetUnfolder]: 2060/2905 cut-off events. [2023-09-01 05:12:33,100 INFO L131 PetriNetUnfolder]: For 2514/2514 co-relation queries the response was YES. [2023-09-01 05:12:33,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8588 conditions, 2905 events. 2060/2905 cut-off events. For 2514/2514 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13289 event pairs, 467 based on Foata normal form. 16/2902 useless extension candidates. Maximal degree in co-relation 8574. Up to 1216 conditions per place. [2023-09-01 05:12:33,110 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2023-09-01 05:12:33,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 76 transitions, 396 flow [2023-09-01 05:12:33,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:12:33,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:12:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 748 transitions. [2023-09-01 05:12:33,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5109289617486339 [2023-09-01 05:12:33,113 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 748 transitions. [2023-09-01 05:12:33,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 748 transitions. [2023-09-01 05:12:33,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:12:33,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 748 transitions. [2023-09-01 05:12:33,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.66666666666667) internal successors, (748), 6 states have internal predecessors, (748), 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 05:12:33,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 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 05:12:33,119 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 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 05:12:33,119 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 188 flow. Second operand 6 states and 748 transitions. [2023-09-01 05:12:33,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 76 transitions, 396 flow [2023-09-01 05:12:33,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 76 transitions, 341 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-09-01 05:12:33,169 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-09-01 05:12:33,169 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-09-01 05:12:33,170 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2023-09-01 05:12:33,170 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-09-01 05:12:33,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 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 05:12:33,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-09-01 05:12:33,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-09-01 05:12:33,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-09-01 05:12:33,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-09-01 05:12:33,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-09-01 05:12:33,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-09-01 05:12:33,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-09-01 05:12:33,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-09-01 05:12:33,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-09-01 05:12:33,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-09-01 05:12:33,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-09-01 05:12:33,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-09-01 05:12:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-09-01 05:12:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-09-01 05:12:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-09-01 05:12:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-09-01 05:12:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-09-01 05:12:33,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-09-01 05:12:33,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-09-01 05:12:33,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-09-01 05:12:33,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:12:33,178 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-09-01 05:12:33,182 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:12:33,183 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:12:33,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:12:33 BasicIcfg [2023-09-01 05:12:33,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:12:33,186 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:12:33,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:12:33,187 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:12:33,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:12:24" (3/4) ... [2023-09-01 05:12:33,189 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:12:33,193 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:12:33,194 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:12:33,194 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:12:33,194 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-09-01 05:12:33,198 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-09-01 05:12:33,198 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-09-01 05:12:33,199 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:12:33,199 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:12:33,233 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:12:33,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:12:33,234 INFO L158 Benchmark]: Toolchain (without parser) took 10412.23ms. Allocated memory was 75.5MB in the beginning and 954.2MB in the end (delta: 878.7MB). Free memory was 51.8MB in the beginning and 634.0MB in the end (delta: -582.2MB). Peak memory consumption was 301.1MB. Max. memory is 16.1GB. [2023-09-01 05:12:33,234 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:12:33,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.02ms. Allocated memory is still 75.5MB. Free memory was 51.6MB in the beginning and 45.9MB in the end (delta: 5.7MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2023-09-01 05:12:33,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.95ms. Allocated memory is still 75.5MB. Free memory was 45.9MB in the beginning and 43.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:12:33,235 INFO L158 Benchmark]: Boogie Preprocessor took 60.16ms. Allocated memory is still 75.5MB. Free memory was 43.1MB in the beginning and 41.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:12:33,235 INFO L158 Benchmark]: RCFGBuilder took 861.07ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 58.8MB in the end (delta: -17.7MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-09-01 05:12:33,236 INFO L158 Benchmark]: TraceAbstraction took 8642.60ms. Allocated memory was 92.3MB in the beginning and 954.2MB in the end (delta: 861.9MB). Free memory was 58.2MB in the beginning and 637.2MB in the end (delta: -578.9MB). Peak memory consumption was 289.8MB. Max. memory is 16.1GB. [2023-09-01 05:12:33,236 INFO L158 Benchmark]: Witness Printer took 46.83ms. Allocated memory is still 954.2MB. Free memory was 637.2MB in the beginning and 634.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:12:33,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.02ms. Allocated memory is still 75.5MB. Free memory was 51.6MB in the beginning and 45.9MB in the end (delta: 5.7MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.95ms. Allocated memory is still 75.5MB. Free memory was 45.9MB in the beginning and 43.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.16ms. Allocated memory is still 75.5MB. Free memory was 43.1MB in the beginning and 41.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 861.07ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 58.8MB in the end (delta: -17.7MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8642.60ms. Allocated memory was 92.3MB in the beginning and 954.2MB in the end (delta: 861.9MB). Free memory was 58.2MB in the beginning and 637.2MB in the end (delta: -578.9MB). Peak memory consumption was 289.8MB. Max. memory is 16.1GB. * Witness Printer took 46.83ms. Allocated memory is still 954.2MB. Free memory was 637.2MB in the beginning and 634.0MB 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: 4.1s, 144 PlacesBefore, 47 PlacesAfterwards, 133 TransitionsBefore, 35 TransitionsAfterwards, 3702 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 107 TotalNumberOfCompositions, 12532 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4901, independent: 4576, independent conditional: 0, independent unconditional: 4576, dependent: 325, dependent conditional: 0, dependent unconditional: 325, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2024, independent: 1957, independent conditional: 0, independent unconditional: 1957, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4901, independent: 2619, independent conditional: 0, independent unconditional: 2619, dependent: 258, dependent conditional: 0, dependent unconditional: 258, unknown: 2024, unknown conditional: 0, unknown unconditional: 2024] , Statistics on independence cache: Total cache size (in pairs): 244, Positive cache size: 217, Positive conditional cache size: 0, Positive unconditional cache size: 217, 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: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: 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, 179 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: 8.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 277 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 414 IncrementalHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 13 mSDtfsCounter, 414 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=188occurred 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, 0.5s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 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! [2023-09-01 05:12:33,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE