./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/fibonacci.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/fibonacci.wvr.c -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 7f56768e1b40ef6b1b210f9cfb796e99d1f27ee48ed204adfea165b19bcc995e --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 11:07:44,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 11:07:44,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 11:07:44,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 11:07:44,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 11:07:44,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 11:07:44,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 11:07:44,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 11:07:44,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 11:07:44,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 11:07:44,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 11:07:44,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 11:07:44,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 11:07:44,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 11:07:44,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 11:07:44,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 11:07:44,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 11:07:44,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 11:07:44,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 11:07:44,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 11:07:44,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 11:07:44,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 11:07:44,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 11:07:44,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 11:07:44,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 11:07:44,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 11:07:44,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 11:07:44,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 11:07:44,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 11:07:44,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 11:07:44,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 11:07:44,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 11:07:44,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 11:07:44,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 11:07:44,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 11:07:44,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 11:07:44,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 11:07:44,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 11:07:44,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 11:07:44,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 11:07:44,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 11:07:44,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 11:07:44,948 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 11:07:44,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 11:07:44,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 11:07:44,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 11:07:44,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 11:07:44,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 11:07:44,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 11:07:44,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 11:07:44,950 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 11:07:44,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 11:07:44,951 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 11:07:44,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 11:07:44,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 11:07:44,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 11:07:44,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 11:07:44,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 11:07:44,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 11:07:44,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 11:07:44,952 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 11:07:44,952 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 11:07:44,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 11:07:44,953 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 11:07:44,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 11:07:44,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 11:07:44,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 11:07:44,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 11:07:44,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 11:07:44,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 11:07:44,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 11:07:44,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 11:07:44,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 11:07:44,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 11:07:44,954 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 11:07:44,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 11:07:44,955 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 11:07:44,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 11:07:44,955 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 11:07:44,955 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f56768e1b40ef6b1b210f9cfb796e99d1f27ee48ed204adfea165b19bcc995e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 11:07:45,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 11:07:45,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 11:07:45,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 11:07:45,258 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 11:07:45,259 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 11:07:45,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/fibonacci.wvr.c [2023-08-30 11:07:46,289 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 11:07:46,476 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 11:07:46,476 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/fibonacci.wvr.c [2023-08-30 11:07:46,487 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3333c2023/2cae4fa810f04c4c905065677a74f6ec/FLAGc5d5cc942 [2023-08-30 11:07:46,495 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3333c2023/2cae4fa810f04c4c905065677a74f6ec [2023-08-30 11:07:46,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 11:07:46,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 11:07:46,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 11:07:46,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 11:07:46,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 11:07:46,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5584df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46, skipping insertion in model container [2023-08-30 11:07:46,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 11:07:46,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 11:07:46,611 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/fibonacci.wvr.c[2330,2343] [2023-08-30 11:07:46,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 11:07:46,624 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 11:07:46,650 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/fibonacci.wvr.c[2330,2343] [2023-08-30 11:07:46,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 11:07:46,661 INFO L208 MainTranslator]: Completed translation [2023-08-30 11:07:46,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46 WrapperNode [2023-08-30 11:07:46,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 11:07:46,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 11:07:46,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 11:07:46,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 11:07:46,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,700 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 229 [2023-08-30 11:07:46,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 11:07:46,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 11:07:46,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 11:07:46,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 11:07:46,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,716 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 11:07:46,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 11:07:46,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 11:07:46,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 11:07:46,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (1/1) ... [2023-08-30 11:07:46,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 11:07:46,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:07:46,766 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 11:07:46,784 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 11:07:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 11:07:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 11:07:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 11:07:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 11:07:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 11:07:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 11:07:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 11:07:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 11:07:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 11:07:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 11:07:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 11:07:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 11:07:46,806 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 11:07:46,908 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 11:07:46,910 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 11:07:47,253 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 11:07:47,263 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 11:07:47,264 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-30 11:07:47,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:07:47 BoogieIcfgContainer [2023-08-30 11:07:47,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 11:07:47,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 11:07:47,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 11:07:47,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 11:07:47,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 11:07:46" (1/3) ... [2023-08-30 11:07:47,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2fa8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:07:47, skipping insertion in model container [2023-08-30 11:07:47,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:07:46" (2/3) ... [2023-08-30 11:07:47,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2fa8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:07:47, skipping insertion in model container [2023-08-30 11:07:47,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:07:47" (3/3) ... [2023-08-30 11:07:47,272 INFO L112 eAbstractionObserver]: Analyzing ICFG fibonacci.wvr.c [2023-08-30 11:07:47,277 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 11:07:47,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 11:07:47,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-30 11:07:47,283 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 11:07:47,398 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 11:07:47,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 290 transitions, 596 flow [2023-08-30 11:07:47,527 INFO L130 PetriNetUnfolder]: 22/288 cut-off events. [2023-08-30 11:07:47,527 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 11:07:47,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 288 events. 22/288 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 593 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 215. Up to 2 conditions per place. [2023-08-30 11:07:47,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 290 transitions, 596 flow [2023-08-30 11:07:47,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 258 places, 272 transitions, 553 flow [2023-08-30 11:07:47,566 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 11:07:47,590 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 258 places, 272 transitions, 553 flow [2023-08-30 11:07:47,592 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 258 places, 272 transitions, 553 flow [2023-08-30 11:07:47,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 258 places, 272 transitions, 553 flow [2023-08-30 11:07:47,627 INFO L130 PetriNetUnfolder]: 21/272 cut-off events. [2023-08-30 11:07:47,627 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 11:07:47,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 272 events. 21/272 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 498 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 215. Up to 2 conditions per place. [2023-08-30 11:07:47,636 INFO L119 LiptonReduction]: Number of co-enabled transitions 23868 [2023-08-30 11:08:05,101 INFO L134 LiptonReduction]: Checked pairs total: 23323 [2023-08-30 11:08:05,101 INFO L136 LiptonReduction]: Total number of compositions: 383 [2023-08-30 11:08:05,111 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 11:08:05,115 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;@7f13f7aa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 11:08:05,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-08-30 11:08:05,118 INFO L130 PetriNetUnfolder]: 1/6 cut-off events. [2023-08-30 11:08:05,118 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 11:08:05,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:05,118 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 11:08:05,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:05,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:05,122 INFO L85 PathProgramCache]: Analyzing trace with hash 38939634, now seen corresponding path program 1 times [2023-08-30 11:08:05,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:05,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356824869] [2023-08-30 11:08:05,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:05,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:05,291 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 11:08:05,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:05,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356824869] [2023-08-30 11:08:05,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356824869] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:05,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:08:05,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 11:08:05,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574378323] [2023-08-30 11:08:05,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:05,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:08:05,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:05,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:08:05,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:08:05,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 673 [2023-08-30 11:08:05,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 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 11:08:05,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:05,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 673 [2023-08-30 11:08:05,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:05,483 INFO L130 PetriNetUnfolder]: 476/673 cut-off events. [2023-08-30 11:08:05,484 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-08-30 11:08:05,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 673 events. 476/673 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 2937 event pairs, 222 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 1238. Up to 665 conditions per place. [2023-08-30 11:08:05,489 INFO L137 encePairwiseOnDemand]: 656/673 looper letters, 22 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2023-08-30 11:08:05,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 25 transitions, 105 flow [2023-08-30 11:08:05,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:08:05,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:08:05,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 849 transitions. [2023-08-30 11:08:05,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42050520059435365 [2023-08-30 11:08:05,505 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 849 transitions. [2023-08-30 11:08:05,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 849 transitions. [2023-08-30 11:08:05,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:05,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 849 transitions. [2023-08-30 11:08:05,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 11:08:05,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:05,520 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:05,522 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 91 flow. Second operand 3 states and 849 transitions. [2023-08-30 11:08:05,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 25 transitions, 105 flow [2023-08-30 11:08:05,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 100 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 11:08:05,527 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 56 flow [2023-08-30 11:08:05,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=29, PETRI_TRANSITIONS=25} [2023-08-30 11:08:05,530 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -17 predicate places. [2023-08-30 11:08:05,531 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 56 flow [2023-08-30 11:08:05,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 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 11:08:05,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:05,531 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 11:08:05,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 11:08:05,533 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:05,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:05,540 INFO L85 PathProgramCache]: Analyzing trace with hash 38939711, now seen corresponding path program 1 times [2023-08-30 11:08:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:05,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577953781] [2023-08-30 11:08:05,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:05,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:05,654 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 11:08:05,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:05,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577953781] [2023-08-30 11:08:05,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577953781] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:05,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:08:05,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 11:08:05,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794297862] [2023-08-30 11:08:05,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:05,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:08:05,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:05,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:08:05,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:08:05,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 673 [2023-08-30 11:08:05,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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 11:08:05,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:05,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 673 [2023-08-30 11:08:05,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:05,814 INFO L130 PetriNetUnfolder]: 671/998 cut-off events. [2023-08-30 11:08:05,814 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 11:08:05,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2025 conditions, 998 events. 671/998 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 5249 event pairs, 232 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 2019. Up to 592 conditions per place. [2023-08-30 11:08:05,817 INFO L137 encePairwiseOnDemand]: 669/673 looper letters, 41 selfloop transitions, 2 changer transitions 0/44 dead transitions. [2023-08-30 11:08:05,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 44 transitions, 183 flow [2023-08-30 11:08:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:08:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:08:05,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 858 transitions. [2023-08-30 11:08:05,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.424962852897474 [2023-08-30 11:08:05,820 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 858 transitions. [2023-08-30 11:08:05,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 858 transitions. [2023-08-30 11:08:05,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:05,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 858 transitions. [2023-08-30 11:08:05,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 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 11:08:05,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:05,826 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:05,826 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 56 flow. Second operand 3 states and 858 transitions. [2023-08-30 11:08:05,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 44 transitions, 183 flow [2023-08-30 11:08:05,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 44 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:08:05,828 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 69 flow [2023-08-30 11:08:05,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-08-30 11:08:05,828 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -15 predicate places. [2023-08-30 11:08:05,829 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 69 flow [2023-08-30 11:08:05,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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 11:08:05,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:05,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 11:08:05,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 11:08:05,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:05,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:05,832 INFO L85 PathProgramCache]: Analyzing trace with hash 38939656, now seen corresponding path program 1 times [2023-08-30 11:08:05,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:05,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186250502] [2023-08-30 11:08:05,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:05,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:05,914 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 11:08:05,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:05,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186250502] [2023-08-30 11:08:05,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186250502] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:05,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:08:05,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 11:08:05,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116340067] [2023-08-30 11:08:05,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:05,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:08:05,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:05,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:08:05,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:08:05,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 673 [2023-08-30 11:08:05,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 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 11:08:05,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:05,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 673 [2023-08-30 11:08:05,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:06,019 INFO L130 PetriNetUnfolder]: 498/760 cut-off events. [2023-08-30 11:08:06,019 INFO L131 PetriNetUnfolder]: For 42/61 co-relation queries the response was YES. [2023-08-30 11:08:06,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1646 conditions, 760 events. 498/760 cut-off events. For 42/61 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 3945 event pairs, 301 based on Foata normal form. 19/304 useless extension candidates. Maximal degree in co-relation 1639. Up to 754 conditions per place. [2023-08-30 11:08:06,022 INFO L137 encePairwiseOnDemand]: 671/673 looper letters, 22 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2023-08-30 11:08:06,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 25 transitions, 113 flow [2023-08-30 11:08:06,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:08:06,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:08:06,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 833 transitions. [2023-08-30 11:08:06,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4125804853888063 [2023-08-30 11:08:06,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 833 transitions. [2023-08-30 11:08:06,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 833 transitions. [2023-08-30 11:08:06,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:06,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 833 transitions. [2023-08-30 11:08:06,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 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 11:08:06,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:06,030 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:06,030 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 69 flow. Second operand 3 states and 833 transitions. [2023-08-30 11:08:06,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 25 transitions, 113 flow [2023-08-30 11:08:06,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 25 transitions, 111 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:08:06,031 INFO L231 Difference]: Finished difference. Result has 31 places, 25 transitions, 67 flow [2023-08-30 11:08:06,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2023-08-30 11:08:06,031 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -15 predicate places. [2023-08-30 11:08:06,031 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 67 flow [2023-08-30 11:08:06,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 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 11:08:06,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:06,032 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 11:08:06,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 11:08:06,032 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:06,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:06,033 INFO L85 PathProgramCache]: Analyzing trace with hash 38939670, now seen corresponding path program 1 times [2023-08-30 11:08:06,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:06,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367353348] [2023-08-30 11:08:06,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:06,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:06,072 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 11:08:06,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:06,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367353348] [2023-08-30 11:08:06,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367353348] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:06,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:08:06,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 11:08:06,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628876910] [2023-08-30 11:08:06,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:06,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:08:06,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:06,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:08:06,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:08:06,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 673 [2023-08-30 11:08:06,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 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 11:08:06,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:06,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 673 [2023-08-30 11:08:06,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:06,170 INFO L130 PetriNetUnfolder]: 413/631 cut-off events. [2023-08-30 11:08:06,171 INFO L131 PetriNetUnfolder]: For 41/60 co-relation queries the response was YES. [2023-08-30 11:08:06,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1365 conditions, 631 events. 413/631 cut-off events. For 41/60 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 3115 event pairs, 244 based on Foata normal form. 19/274 useless extension candidates. Maximal degree in co-relation 1357. Up to 626 conditions per place. [2023-08-30 11:08:06,173 INFO L137 encePairwiseOnDemand]: 671/673 looper letters, 21 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-30 11:08:06,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 109 flow [2023-08-30 11:08:06,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:08:06,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:08:06,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2023-08-30 11:08:06,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4120851906884596 [2023-08-30 11:08:06,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2023-08-30 11:08:06,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2023-08-30 11:08:06,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:06,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2023-08-30 11:08:06,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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 11:08:06,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:06,181 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:06,181 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 67 flow. Second operand 3 states and 832 transitions. [2023-08-30 11:08:06,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 109 flow [2023-08-30 11:08:06,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:08:06,182 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 66 flow [2023-08-30 11:08:06,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2023-08-30 11:08:06,183 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -15 predicate places. [2023-08-30 11:08:06,183 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 66 flow [2023-08-30 11:08:06,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 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 11:08:06,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:06,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 11:08:06,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 11:08:06,184 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:06,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:06,184 INFO L85 PathProgramCache]: Analyzing trace with hash 38939669, now seen corresponding path program 1 times [2023-08-30 11:08:06,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:06,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840780840] [2023-08-30 11:08:06,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:06,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:06,213 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 11:08:06,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:06,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840780840] [2023-08-30 11:08:06,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840780840] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:06,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:08:06,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 11:08:06,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066890655] [2023-08-30 11:08:06,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:06,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:08:06,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:08:06,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:08:06,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 673 [2023-08-30 11:08:06,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 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 11:08:06,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:06,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 673 [2023-08-30 11:08:06,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:06,298 INFO L130 PetriNetUnfolder]: 328/502 cut-off events. [2023-08-30 11:08:06,298 INFO L131 PetriNetUnfolder]: For 41/60 co-relation queries the response was YES. [2023-08-30 11:08:06,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1105 conditions, 502 events. 328/502 cut-off events. For 41/60 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 2313 event pairs, 187 based on Foata normal form. 19/244 useless extension candidates. Maximal degree in co-relation 1096. Up to 498 conditions per place. [2023-08-30 11:08:06,300 INFO L137 encePairwiseOnDemand]: 671/673 looper letters, 20 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2023-08-30 11:08:06,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 23 transitions, 106 flow [2023-08-30 11:08:06,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:08:06,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:08:06,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2023-08-30 11:08:06,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4115898959881129 [2023-08-30 11:08:06,303 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2023-08-30 11:08:06,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2023-08-30 11:08:06,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:06,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2023-08-30 11:08:06,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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 11:08:06,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:06,308 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:06,308 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 66 flow. Second operand 3 states and 831 transitions. [2023-08-30 11:08:06,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 23 transitions, 106 flow [2023-08-30 11:08:06,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 23 transitions, 105 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:08:06,310 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 65 flow [2023-08-30 11:08:06,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2023-08-30 11:08:06,311 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -15 predicate places. [2023-08-30 11:08:06,312 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 65 flow [2023-08-30 11:08:06,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 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 11:08:06,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:06,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 11:08:06,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 11:08:06,313 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:06,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:06,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1207132365, now seen corresponding path program 1 times [2023-08-30 11:08:06,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:06,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014798806] [2023-08-30 11:08:06,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:06,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:08:06,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:06,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014798806] [2023-08-30 11:08:06,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014798806] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:08:06,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654475862] [2023-08-30 11:08:06,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:06,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:08:06,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:08:06,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 11:08:06,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 11:08:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:06,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 11:08:06,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:08:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:08:06,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 11:08:06,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654475862] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:06,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 11:08:06,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-08-30 11:08:06,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787486204] [2023-08-30 11:08:06,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:06,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 11:08:06,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:06,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 11:08:06,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 11:08:06,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 673 [2023-08-30 11:08:06,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 272.25) internal successors, (1089), 4 states have internal predecessors, (1089), 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 11:08:06,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:06,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 673 [2023-08-30 11:08:06,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:06,684 INFO L130 PetriNetUnfolder]: 351/524 cut-off events. [2023-08-30 11:08:06,684 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-08-30 11:08:06,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1155 conditions, 524 events. 351/524 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 2488 event pairs, 9 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 1145. Up to 288 conditions per place. [2023-08-30 11:08:06,686 INFO L137 encePairwiseOnDemand]: 670/673 looper letters, 46 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2023-08-30 11:08:06,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 49 transitions, 216 flow [2023-08-30 11:08:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 11:08:06,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 11:08:06,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1133 transitions. [2023-08-30 11:08:06,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4208766716196137 [2023-08-30 11:08:06,689 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1133 transitions. [2023-08-30 11:08:06,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1133 transitions. [2023-08-30 11:08:06,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:06,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1133 transitions. [2023-08-30 11:08:06,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 283.25) internal successors, (1133), 4 states have internal predecessors, (1133), 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 11:08:06,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 673.0) internal successors, (3365), 5 states have internal predecessors, (3365), 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 11:08:06,696 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 673.0) internal successors, (3365), 5 states have internal predecessors, (3365), 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 11:08:06,696 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 65 flow. Second operand 4 states and 1133 transitions. [2023-08-30 11:08:06,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 49 transitions, 216 flow [2023-08-30 11:08:06,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 49 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:08:06,697 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 64 flow [2023-08-30 11:08:06,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-08-30 11:08:06,698 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -14 predicate places. [2023-08-30 11:08:06,698 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 64 flow [2023-08-30 11:08:06,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 272.25) internal successors, (1089), 4 states have internal predecessors, (1089), 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 11:08:06,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:06,699 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 11:08:06,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 11:08:06,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-30 11:08:06,904 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:06,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:06,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1207132366, now seen corresponding path program 1 times [2023-08-30 11:08:06,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:06,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461116397] [2023-08-30 11:08:06,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:06,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:06,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:08:06,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:06,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461116397] [2023-08-30 11:08:06,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461116397] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:08:06,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833676234] [2023-08-30 11:08:06,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:06,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:08:06,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:08:06,949 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 11:08:06,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 11:08:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:07,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 11:08:07,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:08:07,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:08:07,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 11:08:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:08:07,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833676234] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 11:08:07,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 11:08:07,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 11:08:07,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461532538] [2023-08-30 11:08:07,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 11:08:07,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 11:08:07,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:07,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 11:08:07,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 11:08:07,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 673 [2023-08-30 11:08:07,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 64 flow. Second operand has 7 states, 7 states have (on average 272.42857142857144) internal successors, (1907), 7 states have internal predecessors, (1907), 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 11:08:07,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:07,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 673 [2023-08-30 11:08:07,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:07,304 INFO L130 PetriNetUnfolder]: 735/1100 cut-off events. [2023-08-30 11:08:07,304 INFO L131 PetriNetUnfolder]: For 134/134 co-relation queries the response was YES. [2023-08-30 11:08:07,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2425 conditions, 1100 events. 735/1100 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5350 event pairs, 77 based on Foata normal form. 0/551 useless extension candidates. Maximal degree in co-relation 2415. Up to 316 conditions per place. [2023-08-30 11:08:07,308 INFO L137 encePairwiseOnDemand]: 670/673 looper letters, 79 selfloop transitions, 5 changer transitions 0/85 dead transitions. [2023-08-30 11:08:07,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 85 transitions, 376 flow [2023-08-30 11:08:07,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 11:08:07,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 11:08:07,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1713 transitions. [2023-08-30 11:08:07,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42421991084695393 [2023-08-30 11:08:07,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1713 transitions. [2023-08-30 11:08:07,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1713 transitions. [2023-08-30 11:08:07,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:07,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1713 transitions. [2023-08-30 11:08:07,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 285.5) internal successors, (1713), 6 states have internal predecessors, (1713), 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 11:08:07,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 673.0) internal successors, (4711), 7 states have internal predecessors, (4711), 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 11:08:07,319 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 673.0) internal successors, (4711), 7 states have internal predecessors, (4711), 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 11:08:07,319 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 64 flow. Second operand 6 states and 1713 transitions. [2023-08-30 11:08:07,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 85 transitions, 376 flow [2023-08-30 11:08:07,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 85 transitions, 373 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 11:08:07,320 INFO L231 Difference]: Finished difference. Result has 38 places, 25 transitions, 97 flow [2023-08-30 11:08:07,321 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=97, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2023-08-30 11:08:07,321 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -8 predicate places. [2023-08-30 11:08:07,321 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 97 flow [2023-08-30 11:08:07,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 272.42857142857144) internal successors, (1907), 7 states have internal predecessors, (1907), 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 11:08:07,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:07,322 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 11:08:07,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 11:08:07,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-08-30 11:08:07,527 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:07,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:07,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1219986353, now seen corresponding path program 1 times [2023-08-30 11:08:07,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:07,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069024156] [2023-08-30 11:08:07,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:07,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:07,570 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 11:08:07,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:07,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069024156] [2023-08-30 11:08:07,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069024156] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:07,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:08:07,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 11:08:07,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953385008] [2023-08-30 11:08:07,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:07,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:08:07,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:07,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:08:07,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:08:07,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 673 [2023-08-30 11:08:07,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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 11:08:07,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:07,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 673 [2023-08-30 11:08:07,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:07,741 INFO L130 PetriNetUnfolder]: 754/1322 cut-off events. [2023-08-30 11:08:07,741 INFO L131 PetriNetUnfolder]: For 1128/1196 co-relation queries the response was YES. [2023-08-30 11:08:07,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3327 conditions, 1322 events. 754/1322 cut-off events. For 1128/1196 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 7634 event pairs, 399 based on Foata normal form. 68/940 useless extension candidates. Maximal degree in co-relation 3314. Up to 797 conditions per place. [2023-08-30 11:08:07,745 INFO L137 encePairwiseOnDemand]: 669/673 looper letters, 39 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-08-30 11:08:07,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 42 transitions, 249 flow [2023-08-30 11:08:07,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:08:07,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:08:07,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 848 transitions. [2023-08-30 11:08:07,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42000990589400694 [2023-08-30 11:08:07,748 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 848 transitions. [2023-08-30 11:08:07,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 848 transitions. [2023-08-30 11:08:07,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:07,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 848 transitions. [2023-08-30 11:08:07,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 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 11:08:07,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:07,752 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:07,752 INFO L175 Difference]: Start difference. First operand has 38 places, 25 transitions, 97 flow. Second operand 3 states and 848 transitions. [2023-08-30 11:08:07,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 42 transitions, 249 flow [2023-08-30 11:08:07,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 234 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-30 11:08:07,757 INFO L231 Difference]: Finished difference. Result has 40 places, 26 transitions, 103 flow [2023-08-30 11:08:07,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2023-08-30 11:08:07,758 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -6 predicate places. [2023-08-30 11:08:07,758 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 26 transitions, 103 flow [2023-08-30 11:08:07,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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 11:08:07,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:07,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 11:08:07,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 11:08:07,759 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:07,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:07,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1219986422, now seen corresponding path program 1 times [2023-08-30 11:08:07,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:07,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958993293] [2023-08-30 11:08:07,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:07,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:07,809 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 11:08:07,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:07,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958993293] [2023-08-30 11:08:07,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958993293] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:07,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:08:07,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 11:08:07,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385170529] [2023-08-30 11:08:07,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:07,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:08:07,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:07,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:08:07,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:08:07,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 673 [2023-08-30 11:08:07,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 26 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 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 11:08:07,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:07,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 673 [2023-08-30 11:08:07,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:07,928 INFO L130 PetriNetUnfolder]: 539/950 cut-off events. [2023-08-30 11:08:07,928 INFO L131 PetriNetUnfolder]: For 468/544 co-relation queries the response was YES. [2023-08-30 11:08:07,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2486 conditions, 950 events. 539/950 cut-off events. For 468/544 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5533 event pairs, 481 based on Foata normal form. 76/766 useless extension candidates. Maximal degree in co-relation 2471. Up to 946 conditions per place. [2023-08-30 11:08:07,931 INFO L137 encePairwiseOnDemand]: 670/673 looper letters, 21 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-30 11:08:07,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 24 transitions, 143 flow [2023-08-30 11:08:07,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:08:07,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:08:07,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 829 transitions. [2023-08-30 11:08:07,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4105993065874195 [2023-08-30 11:08:07,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 829 transitions. [2023-08-30 11:08:07,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 829 transitions. [2023-08-30 11:08:07,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:07,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 829 transitions. [2023-08-30 11:08:07,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 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 11:08:07,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:07,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:07,938 INFO L175 Difference]: Start difference. First operand has 40 places, 26 transitions, 103 flow. Second operand 3 states and 829 transitions. [2023-08-30 11:08:07,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 24 transitions, 143 flow [2023-08-30 11:08:07,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 24 transitions, 141 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:08:07,940 INFO L231 Difference]: Finished difference. Result has 39 places, 24 transitions, 99 flow [2023-08-30 11:08:07,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=39, PETRI_TRANSITIONS=24} [2023-08-30 11:08:07,941 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2023-08-30 11:08:07,941 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 24 transitions, 99 flow [2023-08-30 11:08:07,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 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 11:08:07,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:07,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 11:08:07,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 11:08:07,942 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:07,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:07,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1219986366, now seen corresponding path program 1 times [2023-08-30 11:08:07,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:07,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666269944] [2023-08-30 11:08:07,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:07,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:07,979 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 11:08:07,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:07,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666269944] [2023-08-30 11:08:07,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666269944] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:07,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:08:07,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 11:08:07,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102734872] [2023-08-30 11:08:07,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:07,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:08:07,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:07,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:08:07,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:08:07,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 673 [2023-08-30 11:08:07,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 24 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 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 11:08:07,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:07,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 673 [2023-08-30 11:08:07,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:08,086 INFO L130 PetriNetUnfolder]: 453/800 cut-off events. [2023-08-30 11:08:08,086 INFO L131 PetriNetUnfolder]: For 400/468 co-relation queries the response was YES. [2023-08-30 11:08:08,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 800 events. 453/800 cut-off events. For 400/468 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4466 event pairs, 399 based on Foata normal form. 68/672 useless extension candidates. Maximal degree in co-relation 2079. Up to 796 conditions per place. [2023-08-30 11:08:08,090 INFO L137 encePairwiseOnDemand]: 671/673 looper letters, 20 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2023-08-30 11:08:08,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 23 transitions, 139 flow [2023-08-30 11:08:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:08:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:08:08,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 827 transitions. [2023-08-30 11:08:08,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4096087171867261 [2023-08-30 11:08:08,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 827 transitions. [2023-08-30 11:08:08,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 827 transitions. [2023-08-30 11:08:08,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:08,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 827 transitions. [2023-08-30 11:08:08,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.6666666666667) internal successors, (827), 3 states have internal predecessors, (827), 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 11:08:08,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:08,096 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:08,096 INFO L175 Difference]: Start difference. First operand has 39 places, 24 transitions, 99 flow. Second operand 3 states and 827 transitions. [2023-08-30 11:08:08,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 23 transitions, 139 flow [2023-08-30 11:08:08,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 23 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:08:08,097 INFO L231 Difference]: Finished difference. Result has 39 places, 23 transitions, 98 flow [2023-08-30 11:08:08,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=39, PETRI_TRANSITIONS=23} [2023-08-30 11:08:08,098 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2023-08-30 11:08:08,098 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 23 transitions, 98 flow [2023-08-30 11:08:08,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 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 11:08:08,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:08,099 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 11:08:08,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 11:08:08,099 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:08,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:08,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1219986365, now seen corresponding path program 1 times [2023-08-30 11:08:08,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:08,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446496248] [2023-08-30 11:08:08,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:08,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:08,116 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 11:08:08,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:08,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446496248] [2023-08-30 11:08:08,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446496248] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:08,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:08:08,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 11:08:08,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177517570] [2023-08-30 11:08:08,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:08,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:08:08,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:08,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:08:08,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:08:08,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 673 [2023-08-30 11:08:08,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 23 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 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 11:08:08,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:08,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 673 [2023-08-30 11:08:08,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:08,222 INFO L130 PetriNetUnfolder]: 367/650 cut-off events. [2023-08-30 11:08:08,223 INFO L131 PetriNetUnfolder]: For 335/395 co-relation queries the response was YES. [2023-08-30 11:08:08,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1736 conditions, 650 events. 367/650 cut-off events. For 335/395 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3404 event pairs, 317 based on Foata normal form. 60/578 useless extension candidates. Maximal degree in co-relation 1719. Up to 646 conditions per place. [2023-08-30 11:08:08,225 INFO L137 encePairwiseOnDemand]: 671/673 looper letters, 19 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-30 11:08:08,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 136 flow [2023-08-30 11:08:08,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:08:08,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:08:08,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 826 transitions. [2023-08-30 11:08:08,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4091134224863794 [2023-08-30 11:08:08,228 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 826 transitions. [2023-08-30 11:08:08,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 826 transitions. [2023-08-30 11:08:08,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:08,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 826 transitions. [2023-08-30 11:08:08,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 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 11:08:08,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:08,232 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:08,232 INFO L175 Difference]: Start difference. First operand has 39 places, 23 transitions, 98 flow. Second operand 3 states and 826 transitions. [2023-08-30 11:08:08,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 136 flow [2023-08-30 11:08:08,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 22 transitions, 135 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:08:08,235 INFO L231 Difference]: Finished difference. Result has 39 places, 22 transitions, 97 flow [2023-08-30 11:08:08,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2023-08-30 11:08:08,235 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2023-08-30 11:08:08,235 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 97 flow [2023-08-30 11:08:08,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 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 11:08:08,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:08,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 11:08:08,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 11:08:08,236 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:08,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:08,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1219986362, now seen corresponding path program 1 times [2023-08-30 11:08:08,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:08,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57222889] [2023-08-30 11:08:08,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:08,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:08,279 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 11:08:08,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:08,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57222889] [2023-08-30 11:08:08,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57222889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:08,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 11:08:08,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 11:08:08,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702015660] [2023-08-30 11:08:08,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:08,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:08:08,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:08,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:08:08,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 11:08:08,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 673 [2023-08-30 11:08:08,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 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 11:08:08,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:08,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 673 [2023-08-30 11:08:08,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:08,363 INFO L130 PetriNetUnfolder]: 281/500 cut-off events. [2023-08-30 11:08:08,364 INFO L131 PetriNetUnfolder]: For 270/322 co-relation queries the response was YES. [2023-08-30 11:08:08,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1377 conditions, 500 events. 281/500 cut-off events. For 270/322 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2394 event pairs, 235 based on Foata normal form. 52/484 useless extension candidates. Maximal degree in co-relation 1359. Up to 496 conditions per place. [2023-08-30 11:08:08,366 INFO L137 encePairwiseOnDemand]: 671/673 looper letters, 18 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2023-08-30 11:08:08,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 21 transitions, 133 flow [2023-08-30 11:08:08,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:08:08,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:08:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 825 transitions. [2023-08-30 11:08:08,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4086181277860327 [2023-08-30 11:08:08,368 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 825 transitions. [2023-08-30 11:08:08,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 825 transitions. [2023-08-30 11:08:08,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:08,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 825 transitions. [2023-08-30 11:08:08,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 11:08:08,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:08,371 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:08,372 INFO L175 Difference]: Start difference. First operand has 39 places, 22 transitions, 97 flow. Second operand 3 states and 825 transitions. [2023-08-30 11:08:08,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 21 transitions, 133 flow [2023-08-30 11:08:08,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 21 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:08:08,373 INFO L231 Difference]: Finished difference. Result has 39 places, 21 transitions, 96 flow [2023-08-30 11:08:08,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=39, PETRI_TRANSITIONS=21} [2023-08-30 11:08:08,373 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2023-08-30 11:08:08,373 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 21 transitions, 96 flow [2023-08-30 11:08:08,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 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 11:08:08,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:08,374 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:08:08,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 11:08:08,374 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:08,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:08,374 INFO L85 PathProgramCache]: Analyzing trace with hash 835129823, now seen corresponding path program 1 times [2023-08-30 11:08:08,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:08,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092381779] [2023-08-30 11:08:08,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:08,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:08:08,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:08,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092381779] [2023-08-30 11:08:08,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092381779] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:08:08,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883256713] [2023-08-30 11:08:08,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:08,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:08:08,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:08:08,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 11:08:08,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 11:08:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:08,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 11:08:08,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:08:08,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:08:08,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 11:08:08,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883256713] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:08,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 11:08:08,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-08-30 11:08:08,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501622277] [2023-08-30 11:08:08,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:08,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 11:08:08,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:08,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 11:08:08,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 11:08:08,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 673 [2023-08-30 11:08:08,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 21 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 272.75) internal successors, (1091), 4 states have internal predecessors, (1091), 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 11:08:08,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:08,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 673 [2023-08-30 11:08:08,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:08,607 INFO L130 PetriNetUnfolder]: 281/497 cut-off events. [2023-08-30 11:08:08,607 INFO L131 PetriNetUnfolder]: For 374/398 co-relation queries the response was YES. [2023-08-30 11:08:08,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1372 conditions, 497 events. 281/497 cut-off events. For 374/398 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2263 event pairs, 30 based on Foata normal form. 24/487 useless extension candidates. Maximal degree in co-relation 1353. Up to 257 conditions per place. [2023-08-30 11:08:08,610 INFO L137 encePairwiseOnDemand]: 670/673 looper letters, 38 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2023-08-30 11:08:08,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 272 flow [2023-08-30 11:08:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 11:08:08,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 11:08:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1113 transitions. [2023-08-30 11:08:08,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41344725111441305 [2023-08-30 11:08:08,612 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1113 transitions. [2023-08-30 11:08:08,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1113 transitions. [2023-08-30 11:08:08,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:08,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1113 transitions. [2023-08-30 11:08:08,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 278.25) internal successors, (1113), 4 states have internal predecessors, (1113), 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 11:08:08,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 673.0) internal successors, (3365), 5 states have internal predecessors, (3365), 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 11:08:08,617 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 673.0) internal successors, (3365), 5 states have internal predecessors, (3365), 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 11:08:08,617 INFO L175 Difference]: Start difference. First operand has 39 places, 21 transitions, 96 flow. Second operand 4 states and 1113 transitions. [2023-08-30 11:08:08,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 272 flow [2023-08-30 11:08:08,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 41 transitions, 271 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 11:08:08,618 INFO L231 Difference]: Finished difference. Result has 40 places, 20 transitions, 95 flow [2023-08-30 11:08:08,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=40, PETRI_TRANSITIONS=20} [2023-08-30 11:08:08,619 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -6 predicate places. [2023-08-30 11:08:08,619 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 20 transitions, 95 flow [2023-08-30 11:08:08,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 272.75) internal successors, (1091), 4 states have internal predecessors, (1091), 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 11:08:08,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:08,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:08:08,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 11:08:08,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:08:08,826 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:08,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:08,826 INFO L85 PathProgramCache]: Analyzing trace with hash 835129827, now seen corresponding path program 1 times [2023-08-30 11:08:08,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:08,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775566626] [2023-08-30 11:08:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:08,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:08,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:08:08,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:08,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775566626] [2023-08-30 11:08:08,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775566626] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:08:08,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679192368] [2023-08-30 11:08:08,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:08,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:08:08,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:08:08,859 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 11:08:08,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 11:08:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:08,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 11:08:08,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:08:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:08:08,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 11:08:08,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:08:08,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679192368] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 11:08:08,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 11:08:08,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 11:08:08,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657364277] [2023-08-30 11:08:08,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 11:08:08,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 11:08:08,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:08,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 11:08:08,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 11:08:08,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 673 [2023-08-30 11:08:08,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 20 transitions, 95 flow. Second operand has 7 states, 7 states have (on average 272.7142857142857) internal successors, (1909), 7 states have internal predecessors, (1909), 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 11:08:08,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:08,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 673 [2023-08-30 11:08:08,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:09,144 INFO L130 PetriNetUnfolder]: 539/947 cut-off events. [2023-08-30 11:08:09,144 INFO L131 PetriNetUnfolder]: For 796/844 co-relation queries the response was YES. [2023-08-30 11:08:09,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2612 conditions, 947 events. 539/947 cut-off events. For 796/844 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4821 event pairs, 153 based on Foata normal form. 48/961 useless extension candidates. Maximal degree in co-relation 2593. Up to 347 conditions per place. [2023-08-30 11:08:09,148 INFO L137 encePairwiseOnDemand]: 670/673 looper letters, 61 selfloop transitions, 5 changer transitions 0/67 dead transitions. [2023-08-30 11:08:09,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 67 transitions, 443 flow [2023-08-30 11:08:09,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 11:08:09,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 11:08:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1675 transitions. [2023-08-30 11:08:09,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41480931154036654 [2023-08-30 11:08:09,151 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1675 transitions. [2023-08-30 11:08:09,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1675 transitions. [2023-08-30 11:08:09,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:09,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1675 transitions. [2023-08-30 11:08:09,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 279.1666666666667) internal successors, (1675), 6 states have internal predecessors, (1675), 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 11:08:09,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 673.0) internal successors, (4711), 7 states have internal predecessors, (4711), 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 11:08:09,157 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 673.0) internal successors, (4711), 7 states have internal predecessors, (4711), 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 11:08:09,157 INFO L175 Difference]: Start difference. First operand has 40 places, 20 transitions, 95 flow. Second operand 6 states and 1675 transitions. [2023-08-30 11:08:09,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 67 transitions, 443 flow [2023-08-30 11:08:09,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 67 transitions, 440 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 11:08:09,158 INFO L231 Difference]: Finished difference. Result has 46 places, 23 transitions, 128 flow [2023-08-30 11:08:09,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=128, PETRI_PLACES=46, PETRI_TRANSITIONS=23} [2023-08-30 11:08:09,159 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2023-08-30 11:08:09,159 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 23 transitions, 128 flow [2023-08-30 11:08:09,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 272.7142857142857) internal successors, (1909), 7 states have internal predecessors, (1909), 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 11:08:09,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 11:08:09,159 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1] [2023-08-30 11:08:09,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-08-30 11:08:09,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:08:09,364 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-30 11:08:09,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 11:08:09,364 INFO L85 PathProgramCache]: Analyzing trace with hash -79568960, now seen corresponding path program 2 times [2023-08-30 11:08:09,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 11:08:09,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654247591] [2023-08-30 11:08:09,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 11:08:09,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 11:08:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 11:08:09,446 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 11:08:09,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 11:08:09,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654247591] [2023-08-30 11:08:09,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654247591] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 11:08:09,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676042282] [2023-08-30 11:08:09,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 11:08:09,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 11:08:09,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 11:08:09,456 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 11:08:09,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 11:08:09,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 11:08:09,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 11:08:09,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 11:08:09,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 11:08:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 11:08:09,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 11:08:09,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676042282] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 11:08:09,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 11:08:09,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [6] total 7 [2023-08-30 11:08:09,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138732105] [2023-08-30 11:08:09,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 11:08:09,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 11:08:09,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 11:08:09,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 11:08:09,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-30 11:08:09,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 673 [2023-08-30 11:08:09,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 23 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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 11:08:09,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 11:08:09,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 673 [2023-08-30 11:08:09,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 11:08:09,671 INFO L130 PetriNetUnfolder]: 421/746 cut-off events. [2023-08-30 11:08:09,671 INFO L131 PetriNetUnfolder]: For 1171/1263 co-relation queries the response was YES. [2023-08-30 11:08:09,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2198 conditions, 746 events. 421/746 cut-off events. For 1171/1263 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3732 event pairs, 369 based on Foata normal form. 144/886 useless extension candidates. Maximal degree in co-relation 2176. Up to 742 conditions per place. [2023-08-30 11:08:09,673 INFO L137 encePairwiseOnDemand]: 670/673 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-08-30 11:08:09,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 21 transitions, 146 flow [2023-08-30 11:08:09,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 11:08:09,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 11:08:09,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 826 transitions. [2023-08-30 11:08:09,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4091134224863794 [2023-08-30 11:08:09,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 826 transitions. [2023-08-30 11:08:09,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 826 transitions. [2023-08-30 11:08:09,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 11:08:09,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 826 transitions. [2023-08-30 11:08:09,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 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 11:08:09,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:09,679 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 673.0) internal successors, (2692), 4 states have internal predecessors, (2692), 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 11:08:09,679 INFO L175 Difference]: Start difference. First operand has 46 places, 23 transitions, 128 flow. Second operand 3 states and 826 transitions. [2023-08-30 11:08:09,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 21 transitions, 146 flow [2023-08-30 11:08:09,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 21 transitions, 118 flow, removed 5 selfloop flow, removed 9 redundant places. [2023-08-30 11:08:09,681 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-08-30 11:08:09,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=673, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-08-30 11:08:09,681 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -9 predicate places. [2023-08-30 11:08:09,681 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-08-30 11:08:09,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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 11:08:09,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 58 remaining) [2023-08-30 11:08:09,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 58 remaining) [2023-08-30 11:08:09,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 58 remaining) [2023-08-30 11:08:09,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 58 remaining) [2023-08-30 11:08:09,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 58 remaining) [2023-08-30 11:08:09,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 58 remaining) [2023-08-30 11:08:09,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 58 remaining) [2023-08-30 11:08:09,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 58 remaining) [2023-08-30 11:08:09,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 58 remaining) [2023-08-30 11:08:09,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 58 remaining) [2023-08-30 11:08:09,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 58 remaining) [2023-08-30 11:08:09,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 58 remaining) [2023-08-30 11:08:09,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 58 remaining) [2023-08-30 11:08:09,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 58 remaining) [2023-08-30 11:08:09,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 58 remaining) [2023-08-30 11:08:09,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 58 remaining) [2023-08-30 11:08:09,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 58 remaining) [2023-08-30 11:08:09,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 58 remaining) [2023-08-30 11:08:09,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 58 remaining) [2023-08-30 11:08:09,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 58 remaining) [2023-08-30 11:08:09,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 58 remaining) [2023-08-30 11:08:09,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 58 remaining) [2023-08-30 11:08:09,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 58 remaining) [2023-08-30 11:08:09,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 58 remaining) [2023-08-30 11:08:09,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 58 remaining) [2023-08-30 11:08:09,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 58 remaining) [2023-08-30 11:08:09,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 58 remaining) [2023-08-30 11:08:09,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 58 remaining) [2023-08-30 11:08:09,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 58 remaining) [2023-08-30 11:08:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 58 remaining) [2023-08-30 11:08:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 58 remaining) [2023-08-30 11:08:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 58 remaining) [2023-08-30 11:08:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 58 remaining) [2023-08-30 11:08:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 58 remaining) [2023-08-30 11:08:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 58 remaining) [2023-08-30 11:08:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 58 remaining) [2023-08-30 11:08:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 58 remaining) [2023-08-30 11:08:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 58 remaining) [2023-08-30 11:08:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 58 remaining) [2023-08-30 11:08:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 58 remaining) [2023-08-30 11:08:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 58 remaining) [2023-08-30 11:08:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 58 remaining) [2023-08-30 11:08:09,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 58 remaining) [2023-08-30 11:08:09,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 58 remaining) [2023-08-30 11:08:09,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 58 remaining) [2023-08-30 11:08:09,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 58 remaining) [2023-08-30 11:08:09,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 58 remaining) [2023-08-30 11:08:09,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 58 remaining) [2023-08-30 11:08:09,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 58 remaining) [2023-08-30 11:08:09,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 58 remaining) [2023-08-30 11:08:09,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 58 remaining) [2023-08-30 11:08:09,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 58 remaining) [2023-08-30 11:08:09,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 58 remaining) [2023-08-30 11:08:09,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 58 remaining) [2023-08-30 11:08:09,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 58 remaining) [2023-08-30 11:08:09,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 58 remaining) [2023-08-30 11:08:09,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 58 remaining) [2023-08-30 11:08:09,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 58 remaining) [2023-08-30 11:08:09,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-30 11:08:09,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-30 11:08:09,896 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 11:08:09,900 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 11:08:09,900 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 11:08:09,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 11:08:09 BasicIcfg [2023-08-30 11:08:09,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 11:08:09,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 11:08:09,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 11:08:09,902 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 11:08:09,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:07:47" (3/4) ... [2023-08-30 11:08:09,904 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 11:08:09,908 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 11:08:09,908 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 11:08:09,910 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-30 11:08:09,910 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 11:08:09,910 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 11:08:09,910 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 11:08:09,929 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 11:08:09,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 11:08:09,930 INFO L158 Benchmark]: Toolchain (without parser) took 23432.11ms. Allocated memory was 79.7MB in the beginning and 302.0MB in the end (delta: 222.3MB). Free memory was 57.6MB in the beginning and 222.1MB in the end (delta: -164.5MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2023-08-30 11:08:09,930 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 11:08:09,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.63ms. Allocated memory is still 79.7MB. Free memory was 57.3MB in the beginning and 46.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 11:08:09,930 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.88ms. Allocated memory is still 79.7MB. Free memory was 45.9MB in the beginning and 43.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 11:08:09,931 INFO L158 Benchmark]: Boogie Preprocessor took 24.61ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 42.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 11:08:09,931 INFO L158 Benchmark]: RCFGBuilder took 539.70ms. Allocated memory is still 79.7MB. Free memory was 42.0MB in the beginning and 40.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-08-30 11:08:09,931 INFO L158 Benchmark]: TraceAbstraction took 22634.30ms. Allocated memory was 79.7MB in the beginning and 302.0MB in the end (delta: 222.3MB). Free memory was 39.7MB in the beginning and 225.3MB in the end (delta: -185.5MB). Peak memory consumption was 141.7MB. Max. memory is 16.1GB. [2023-08-30 11:08:09,931 INFO L158 Benchmark]: Witness Printer took 27.37ms. Allocated memory is still 302.0MB. Free memory was 224.2MB in the beginning and 222.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 11:08:09,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.63ms. Allocated memory is still 79.7MB. Free memory was 57.3MB in the beginning and 46.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.88ms. Allocated memory is still 79.7MB. Free memory was 45.9MB in the beginning and 43.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.61ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 42.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 539.70ms. Allocated memory is still 79.7MB. Free memory was 42.0MB in the beginning and 40.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * TraceAbstraction took 22634.30ms. Allocated memory was 79.7MB in the beginning and 302.0MB in the end (delta: 222.3MB). Free memory was 39.7MB in the beginning and 225.3MB in the end (delta: -185.5MB). Peak memory consumption was 141.7MB. Max. memory is 16.1GB. * Witness Printer took 27.37ms. Allocated memory is still 302.0MB. Free memory was 224.2MB in the beginning and 222.1MB in the end (delta: 2.1MB). 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: 17.5s, 258 PlacesBefore, 46 PlacesAfterwards, 272 TransitionsBefore, 41 TransitionsAfterwards, 23868 CoEnabledTransitionPairs, 9 FixpointIterations, 53 TrivialSequentialCompositions, 266 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 42 ConcurrentYvCompositions, 19 ChoiceCompositions, 383 TotalNumberOfCompositions, 23323 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23323, independent: 23323, independent conditional: 0, independent unconditional: 23323, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 13357, independent: 13357, independent conditional: 0, independent unconditional: 13357, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 23323, independent: 9966, independent conditional: 0, independent unconditional: 9966, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 13357, unknown conditional: 0, unknown unconditional: 13357] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 457 locations, 58 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: 22.5s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 17.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 541 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 404 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 795 IncrementalHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 44 mSDtfsCounter, 795 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=14, InterpolantAutomatonStates: 53, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 114 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 628 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 22 InterpolantComputations, 13 PerfectInterpolantSequences, 12/30 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 28 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 11:08:09,945 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