./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/thin002_rmo.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_rmo.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:26:45,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:26:45,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:26:45,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:26:45,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:26:45,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:26:45,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:26:45,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:26:45,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:26:45,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:26:45,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:26:45,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:26:45,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:26:45,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:26:45,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:26:45,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:26:45,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:26:45,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:26:45,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:26:45,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:26:45,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:26:45,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:26:45,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:26:45,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:26:45,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:26:45,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:26:45,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:26:45,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:26:45,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:26:45,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:26:45,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:26:45,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:26:45,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:26:45,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:26:45,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:26:45,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:26:45,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:26:45,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:26:45,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:26:45,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:26:45,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:26:45,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:26:45,913 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:26:45,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:26:45,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:26:45,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:26:45,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:26:45,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:26:45,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:26:45,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:26:45,916 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:26:45,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:26:45,917 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:26:45,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:26:45,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:26:45,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:26:45,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:26:45,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:26:45,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:26:45,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:26:45,918 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:26:45,918 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:26:45,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:26:45,919 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:26:45,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:26:45,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:26:45,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:26:45,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:26:45,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:26:45,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:26:45,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:26:45,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:26:45,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:26:45,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:26:45,920 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:26:45,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:26:45,921 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:26:45,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:26:45,921 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:26:45,921 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:26:46,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:26:46,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:26:46,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:26:46,230 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:26:46,231 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:26:46,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_rmo.i [2023-09-01 05:26:47,297 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:26:47,493 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:26:47,493 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i [2023-09-01 05:26:47,506 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b839a3c63/c9a064b072354e34ac800f7c156d0766/FLAGc4e7192a5 [2023-09-01 05:26:47,517 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b839a3c63/c9a064b072354e34ac800f7c156d0766 [2023-09-01 05:26:47,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:26:47,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:26:47,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:26:47,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:26:47,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:26:47,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:47,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120211f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47, skipping insertion in model container [2023-09-01 05:26:47,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:47,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:26:47,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:26:47,713 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i[988,1001] [2023-09-01 05:26:47,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:26:47,902 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:26:47,910 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i[988,1001] [2023-09-01 05:26:47,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:26:47,985 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:47,985 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:47,990 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:26:47,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47 WrapperNode [2023-09-01 05:26:47,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:26:47,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:26:47,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:26:47,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:26:47,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:48,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:48,046 INFO L138 Inliner]: procedures = 177, calls = 80, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 155 [2023-09-01 05:26:48,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:26:48,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:26:48,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:26:48,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:26:48,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:48,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:48,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:48,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:48,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:48,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:48,087 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:48,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:48,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:26:48,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:26:48,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:26:48,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:26:48,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (1/1) ... [2023-09-01 05:26:48,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:26:48,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:26:48,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 05:26:48,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 05:26:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 05:26:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:26:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:26:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:26:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:26:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:26:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:26:48,156 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:26:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:26:48,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:26:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:26:48,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:26:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-09-01 05:26:48,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-09-01 05:26:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:26:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:26:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:26:48,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:26:48,160 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:26:48,337 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:26:48,339 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:26:48,659 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:26:48,774 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:26:48,774 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:26:48,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:48 BoogieIcfgContainer [2023-09-01 05:26:48,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:26:48,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:26:48,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:26:48,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:26:48,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:26:47" (1/3) ... [2023-09-01 05:26:48,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e58f5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:26:48, skipping insertion in model container [2023-09-01 05:26:48,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:47" (2/3) ... [2023-09-01 05:26:48,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e58f5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:26:48, skipping insertion in model container [2023-09-01 05:26:48,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:48" (3/3) ... [2023-09-01 05:26:48,784 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_rmo.i [2023-09-01 05:26:48,791 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:26:48,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:26:48,797 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 05:26:48,797 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:26:48,867 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:26:48,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 154 transitions, 328 flow [2023-09-01 05:26:48,958 INFO L130 PetriNetUnfolder]: 2/150 cut-off events. [2023-09-01 05:26:48,959 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:26:48,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 2/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2023-09-01 05:26:48,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 154 transitions, 328 flow [2023-09-01 05:26:48,970 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 150 transitions, 312 flow [2023-09-01 05:26:48,973 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:26:48,982 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 150 transitions, 312 flow [2023-09-01 05:26:48,985 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 150 transitions, 312 flow [2023-09-01 05:26:48,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 312 flow [2023-09-01 05:26:49,025 INFO L130 PetriNetUnfolder]: 2/150 cut-off events. [2023-09-01 05:26:49,025 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:26:49,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 2/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2023-09-01 05:26:49,029 INFO L119 LiptonReduction]: Number of co-enabled transitions 3468 [2023-09-01 05:26:54,611 INFO L134 LiptonReduction]: Checked pairs total: 12547 [2023-09-01 05:26:54,612 INFO L136 LiptonReduction]: Total number of compositions: 124 [2023-09-01 05:26:54,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:26:54,632 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;@22a2fd41, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:26:54,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-09-01 05:26:54,637 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:26:54,637 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:26:54,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:54,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:26:54,639 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:26:54,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:54,644 INFO L85 PathProgramCache]: Analyzing trace with hash 690789719, now seen corresponding path program 1 times [2023-09-01 05:26:54,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:54,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45601503] [2023-09-01 05:26:54,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:54,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:26:54,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:54,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45601503] [2023-09-01 05:26:54,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45601503] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:54,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:54,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:26:54,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061488594] [2023-09-01 05:26:54,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:54,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:26:54,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:54,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:26:54,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:26:54,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 278 [2023-09-01 05:26:54,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:54,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:54,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 278 [2023-09-01 05:26:54,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:55,731 INFO L130 PetriNetUnfolder]: 5879/8074 cut-off events. [2023-09-01 05:26:55,732 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2023-09-01 05:26:55,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16218 conditions, 8074 events. 5879/8074 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 44254 event pairs, 5879 based on Foata normal form. 320/5987 useless extension candidates. Maximal degree in co-relation 16206. Up to 7968 conditions per place. [2023-09-01 05:26:55,786 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 25 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-09-01 05:26:55,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 30 transitions, 124 flow [2023-09-01 05:26:55,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:26:55,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:26:55,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 421 transitions. [2023-09-01 05:26:55,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5047961630695443 [2023-09-01 05:26:55,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 421 transitions. [2023-09-01 05:26:55,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 421 transitions. [2023-09-01 05:26:55,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:55,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 421 transitions. [2023-09-01 05:26:55,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:55,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:55,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:55,815 INFO L175 Difference]: Start difference. First operand has 47 places, 35 transitions, 82 flow. Second operand 3 states and 421 transitions. [2023-09-01 05:26:55,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 30 transitions, 124 flow [2023-09-01 05:26:55,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 30 transitions, 120 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 05:26:55,822 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 70 flow [2023-09-01 05:26:55,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2023-09-01 05:26:55,827 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -6 predicate places. [2023-09-01 05:26:55,828 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 70 flow [2023-09-01 05:26:55,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:55,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:55,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:26:55,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:26:55,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:26:55,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:55,835 INFO L85 PathProgramCache]: Analyzing trace with hash 690789720, now seen corresponding path program 1 times [2023-09-01 05:26:55,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:55,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754717966] [2023-09-01 05:26:55,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:55,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:55,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:26:55,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:55,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754717966] [2023-09-01 05:26:55,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754717966] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:55,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:55,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:26:55,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374763191] [2023-09-01 05:26:55,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:55,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:26:55,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:55,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:26:55,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:26:55,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 278 [2023-09-01 05:26:55,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:55,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:55,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 278 [2023-09-01 05:26:55,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:56,327 INFO L130 PetriNetUnfolder]: 3427/4888 cut-off events. [2023-09-01 05:26:56,329 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:26:56,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9878 conditions, 4888 events. 3427/4888 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 26405 event pairs, 1359 based on Foata normal form. 0/3601 useless extension candidates. Maximal degree in co-relation 9872. Up to 4675 conditions per place. [2023-09-01 05:26:56,348 INFO L137 encePairwiseOnDemand]: 268/278 looper letters, 37 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2023-09-01 05:26:56,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 192 flow [2023-09-01 05:26:56,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:26:56,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:26:56,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2023-09-01 05:26:56,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5239808153477218 [2023-09-01 05:26:56,350 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2023-09-01 05:26:56,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2023-09-01 05:26:56,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:56,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2023-09-01 05:26:56,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:56,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:56,354 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:56,354 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 70 flow. Second operand 3 states and 437 transitions. [2023-09-01 05:26:56,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 192 flow [2023-09-01 05:26:56,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 46 transitions, 191 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:26:56,355 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 110 flow [2023-09-01 05:26:56,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2023-09-01 05:26:56,356 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -4 predicate places. [2023-09-01 05:26:56,357 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 110 flow [2023-09-01 05:26:56,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:56,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:56,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:26:56,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:26:56,358 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:26:56,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:56,358 INFO L85 PathProgramCache]: Analyzing trace with hash 32156783, now seen corresponding path program 1 times [2023-09-01 05:26:56,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:56,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588569229] [2023-09-01 05:26:56,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:56,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:26:56,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:56,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588569229] [2023-09-01 05:26:56,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588569229] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:56,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:56,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:26:56,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620367752] [2023-09-01 05:26:56,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:56,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:26:56,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:56,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:26:56,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:26:56,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 278 [2023-09-01 05:26:56,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:56,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:56,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 278 [2023-09-01 05:26:56,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:56,725 INFO L130 PetriNetUnfolder]: 1288/1993 cut-off events. [2023-09-01 05:26:56,725 INFO L131 PetriNetUnfolder]: For 231/231 co-relation queries the response was YES. [2023-09-01 05:26:56,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5053 conditions, 1993 events. 1288/1993 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 9909 event pairs, 369 based on Foata normal form. 44/1758 useless extension candidates. Maximal degree in co-relation 5045. Up to 1408 conditions per place. [2023-09-01 05:26:56,740 INFO L137 encePairwiseOnDemand]: 268/278 looper letters, 47 selfloop transitions, 9 changer transitions 0/60 dead transitions. [2023-09-01 05:26:56,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 60 transitions, 292 flow [2023-09-01 05:26:56,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:26:56,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:26:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 581 transitions. [2023-09-01 05:26:56,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5224820143884892 [2023-09-01 05:26:56,743 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 581 transitions. [2023-09-01 05:26:56,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 581 transitions. [2023-09-01 05:26:56,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:56,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 581 transitions. [2023-09-01 05:26:56,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:56,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:56,747 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 278.0) internal successors, (1390), 5 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:56,747 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 110 flow. Second operand 4 states and 581 transitions. [2023-09-01 05:26:56,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 60 transitions, 292 flow [2023-09-01 05:26:56,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 60 transitions, 287 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:26:56,749 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 165 flow [2023-09-01 05:26:56,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2023-09-01 05:26:56,750 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2023-09-01 05:26:56,752 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 165 flow [2023-09-01 05:26:56,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:56,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:56,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:26:56,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:26:56,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:26:56,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:56,754 INFO L85 PathProgramCache]: Analyzing trace with hash -479505325, now seen corresponding path program 1 times [2023-09-01 05:26:56,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:56,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368841991] [2023-09-01 05:26:56,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:56,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:56,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:26:56,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:56,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368841991] [2023-09-01 05:26:56,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368841991] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:56,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:56,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:26:56,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693154905] [2023-09-01 05:26:56,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:56,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:26:56,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:56,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:26:56,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:26:56,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 278 [2023-09-01 05:26:56,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:56,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:56,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 278 [2023-09-01 05:26:56,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:57,052 INFO L130 PetriNetUnfolder]: 679/1060 cut-off events. [2023-09-01 05:26:57,053 INFO L131 PetriNetUnfolder]: For 744/744 co-relation queries the response was YES. [2023-09-01 05:26:57,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3118 conditions, 1060 events. 679/1060 cut-off events. For 744/744 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4338 event pairs, 135 based on Foata normal form. 30/1051 useless extension candidates. Maximal degree in co-relation 3108. Up to 393 conditions per place. [2023-09-01 05:26:57,059 INFO L137 encePairwiseOnDemand]: 268/278 looper letters, 51 selfloop transitions, 13 changer transitions 4/72 dead transitions. [2023-09-01 05:26:57,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 72 transitions, 397 flow [2023-09-01 05:26:57,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:26:57,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:26:57,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 723 transitions. [2023-09-01 05:26:57,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5201438848920863 [2023-09-01 05:26:57,061 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 723 transitions. [2023-09-01 05:26:57,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 723 transitions. [2023-09-01 05:26:57,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:57,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 723 transitions. [2023-09-01 05:26:57,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:57,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:57,066 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:57,066 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 165 flow. Second operand 5 states and 723 transitions. [2023-09-01 05:26:57,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 72 transitions, 397 flow [2023-09-01 05:26:57,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 72 transitions, 379 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-09-01 05:26:57,072 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 191 flow [2023-09-01 05:26:57,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2023-09-01 05:26:57,073 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2023-09-01 05:26:57,073 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 191 flow [2023-09-01 05:26:57,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:57,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:57,074 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:26:57,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:26:57,074 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:26:57,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:57,075 INFO L85 PathProgramCache]: Analyzing trace with hash -116967516, now seen corresponding path program 1 times [2023-09-01 05:26:57,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:57,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407686343] [2023-09-01 05:26:57,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:57,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:26:57,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:57,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407686343] [2023-09-01 05:26:57,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407686343] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:57,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:57,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:26:57,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219565751] [2023-09-01 05:26:57,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:57,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:26:57,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:57,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:26:57,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:26:57,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 278 [2023-09-01 05:26:57,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:57,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:57,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 278 [2023-09-01 05:26:57,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:57,402 INFO L130 PetriNetUnfolder]: 616/931 cut-off events. [2023-09-01 05:26:57,402 INFO L131 PetriNetUnfolder]: For 916/916 co-relation queries the response was YES. [2023-09-01 05:26:57,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2831 conditions, 931 events. 616/931 cut-off events. For 916/916 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3730 event pairs, 115 based on Foata normal form. 17/933 useless extension candidates. Maximal degree in co-relation 2820. Up to 372 conditions per place. [2023-09-01 05:26:57,404 INFO L137 encePairwiseOnDemand]: 268/278 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2023-09-01 05:26:57,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 60 transitions, 329 flow [2023-09-01 05:26:57,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:26:57,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:26:57,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 841 transitions. [2023-09-01 05:26:57,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5041966426858513 [2023-09-01 05:26:57,407 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 841 transitions. [2023-09-01 05:26:57,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 841 transitions. [2023-09-01 05:26:57,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:57,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 841 transitions. [2023-09-01 05:26:57,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.16666666666666) internal successors, (841), 6 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:57,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:57,412 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:57,412 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 191 flow. Second operand 6 states and 841 transitions. [2023-09-01 05:26:57,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 60 transitions, 329 flow [2023-09-01 05:26:57,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 60 transitions, 274 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-09-01 05:26:57,420 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-09-01 05:26:57,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-09-01 05:26:57,422 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2023-09-01 05:26:57,422 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-09-01 05:26:57,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:26:57,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-09-01 05:26:57,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-09-01 05:26:57,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-09-01 05:26:57,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-09-01 05:26:57,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-09-01 05:26:57,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-09-01 05:26:57,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-09-01 05:26:57,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-09-01 05:26:57,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-09-01 05:26:57,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-09-01 05:26:57,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-09-01 05:26:57,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-09-01 05:26:57,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-09-01 05:26:57,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-09-01 05:26:57,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-09-01 05:26:57,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-09-01 05:26:57,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-09-01 05:26:57,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-09-01 05:26:57,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-09-01 05:26:57,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-09-01 05:26:57,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:26:57,435 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-09-01 05:26:57,440 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:26:57,441 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:26:57,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:26:57 BasicIcfg [2023-09-01 05:26:57,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:26:57,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:26:57,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:26:57,443 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:26:57,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:48" (3/4) ... [2023-09-01 05:26:57,445 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:26:57,448 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:26:57,448 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:26:57,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:26:57,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-09-01 05:26:57,454 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2023-09-01 05:26:57,455 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-09-01 05:26:57,455 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 05:26:57,455 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:26:57,493 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:26:57,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:26:57,494 INFO L158 Benchmark]: Toolchain (without parser) took 9974.56ms. Allocated memory was 62.9MB in the beginning and 796.9MB in the end (delta: 734.0MB). Free memory was 38.0MB in the beginning and 680.0MB in the end (delta: -642.0MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. [2023-09-01 05:26:57,494 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 30.5MB in the beginning and 30.5MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:26:57,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.49ms. Allocated memory is still 62.9MB. Free memory was 37.9MB in the beginning and 30.4MB in the end (delta: 7.5MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-09-01 05:26:57,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.04ms. Allocated memory is still 62.9MB. Free memory was 30.3MB in the beginning and 27.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:26:57,495 INFO L158 Benchmark]: Boogie Preprocessor took 44.16ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 27.8MB in the beginning and 53.6MB in the end (delta: -25.8MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-09-01 05:26:57,495 INFO L158 Benchmark]: RCFGBuilder took 684.22ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 42.4MB in the end (delta: 11.2MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2023-09-01 05:26:57,496 INFO L158 Benchmark]: TraceAbstraction took 8665.75ms. Allocated memory was 75.5MB in the beginning and 796.9MB in the end (delta: 721.4MB). Free memory was 42.0MB in the beginning and 684.2MB in the end (delta: -642.2MB). Peak memory consumption was 370.5MB. Max. memory is 16.1GB. [2023-09-01 05:26:57,496 INFO L158 Benchmark]: Witness Printer took 50.59ms. Allocated memory is still 796.9MB. Free memory was 684.2MB in the beginning and 680.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:26:57,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 30.5MB in the beginning and 30.5MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.49ms. Allocated memory is still 62.9MB. Free memory was 37.9MB in the beginning and 30.4MB in the end (delta: 7.5MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.04ms. Allocated memory is still 62.9MB. Free memory was 30.3MB in the beginning and 27.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.16ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 27.8MB in the beginning and 53.6MB in the end (delta: -25.8MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * RCFGBuilder took 684.22ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 42.4MB in the end (delta: 11.2MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * TraceAbstraction took 8665.75ms. Allocated memory was 75.5MB in the beginning and 796.9MB in the end (delta: 721.4MB). Free memory was 42.0MB in the beginning and 684.2MB in the end (delta: -642.2MB). Peak memory consumption was 370.5MB. Max. memory is 16.1GB. * Witness Printer took 50.59ms. Allocated memory is still 796.9MB. Free memory was 684.2MB in the beginning and 680.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6s, 161 PlacesBefore, 47 PlacesAfterwards, 150 TransitionsBefore, 35 TransitionsAfterwards, 3468 CoEnabledTransitionPairs, 7 FixpointIterations, 64 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 124 TotalNumberOfCompositions, 12547 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6171, independent: 5827, independent conditional: 0, independent unconditional: 5827, dependent: 344, dependent conditional: 0, dependent unconditional: 344, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1808, independent: 1752, independent conditional: 0, independent unconditional: 1752, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6171, independent: 4075, independent conditional: 0, independent unconditional: 4075, dependent: 288, dependent conditional: 0, dependent unconditional: 288, unknown: 1808, unknown conditional: 0, unknown unconditional: 1808] , Statistics on independence cache: Total cache size (in pairs): 276, Positive cache size: 249, Positive conditional cache size: 0, Positive unconditional cache size: 249, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 845]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 845]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 194 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 167 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 319 IncrementalHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 7 mSDtfsCounter, 319 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:26:57,523 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