./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi003_tso.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/rfi003_tso.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 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --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 05:22:35,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:22:35,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:22:35,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:22:35,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:22:35,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:22:35,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:22:35,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:22:35,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:22:35,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:22:35,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:22:35,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:22:35,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:22:35,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:22:35,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:22:35,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:22:35,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:22:35,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:22:35,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:22:35,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:22:35,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:22:35,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:22:35,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:22:35,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:22:35,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:22:35,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:22:35,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:22:35,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:22:35,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:22:35,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:22:35,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:22:35,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:22:35,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:22:35,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:22:35,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:22:35,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:22:35,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:22:35,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:22:35,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:22:35,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:22:35,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:22:35,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:22:35,895 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:22:35,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:22:35,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:22:35,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:22:35,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:22:35,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:22:35,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:22:35,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:22:35,898 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:22:35,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:22:35,899 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:22:35,899 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:22:35,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:22:35,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:22:35,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:22:35,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:22:35,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:22:35,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:22:35,900 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:22:35,900 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:22:35,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:22:35,901 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:22:35,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:22:35,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:22:35,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:22:35,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:22:35,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:22:35,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:22:35,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:22:35,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:22:35,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:22:35,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:22:35,903 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:22:35,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:22:35,903 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:22:35,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:22:35,903 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:22:35,903 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:22:36,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:22:36,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:22:36,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:22:36,185 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:22:36,186 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:22:36,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2023-09-01 05:22:37,214 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:22:37,472 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:22:37,473 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2023-09-01 05:22:37,493 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16705455b/90895398b209432594afaee216e52071/FLAGefdafe637 [2023-09-01 05:22:37,508 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16705455b/90895398b209432594afaee216e52071 [2023-09-01 05:22:37,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:22:37,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:22:37,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:22:37,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:22:37,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:22:37,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:22:37" (1/1) ... [2023-09-01 05:22:37,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f8fe8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:37, skipping insertion in model container [2023-09-01 05:22:37,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:22:37" (1/1) ... [2023-09-01 05:22:37,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:22:37,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:22:37,697 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/rfi003_tso.i[944,957] [2023-09-01 05:22:37,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:22:37,917 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:22:37,925 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/rfi003_tso.i[944,957] [2023-09-01 05:22:37,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:22:37,999 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:22:38,000 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:22:38,004 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:22:38,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38 WrapperNode [2023-09-01 05:22:38,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:22:38,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:22:38,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:22:38,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:22:38,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (1/1) ... [2023-09-01 05:22:38,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (1/1) ... [2023-09-01 05:22:38,054 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 173 [2023-09-01 05:22:38,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:22:38,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:22:38,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:22:38,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:22:38,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (1/1) ... [2023-09-01 05:22:38,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (1/1) ... [2023-09-01 05:22:38,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (1/1) ... [2023-09-01 05:22:38,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (1/1) ... [2023-09-01 05:22:38,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (1/1) ... [2023-09-01 05:22:38,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (1/1) ... [2023-09-01 05:22:38,078 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (1/1) ... [2023-09-01 05:22:38,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (1/1) ... [2023-09-01 05:22:38,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:22:38,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:22:38,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:22:38,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:22:38,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (1/1) ... [2023-09-01 05:22:38,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:22:38,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:22:38,138 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 05:22:38,172 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 05:22:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:22:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:22:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:22:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:22:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:22:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:22:38,188 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:22:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:22:38,189 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:22:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:22:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:22:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:22:38,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:22:38,190 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 05:22:38,343 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:22:38,344 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:22:38,663 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:22:38,806 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:22:38,806 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:22:38,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:38 BoogieIcfgContainer [2023-09-01 05:22:38,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:22:38,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:22:38,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:22:38,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:22:38,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:22:37" (1/3) ... [2023-09-01 05:22:38,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0a6b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:22:38, skipping insertion in model container [2023-09-01 05:22:38,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:38" (2/3) ... [2023-09-01 05:22:38,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0a6b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:22:38, skipping insertion in model container [2023-09-01 05:22:38,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:38" (3/3) ... [2023-09-01 05:22:38,815 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2023-09-01 05:22:38,821 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:22:38,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:22:38,828 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 05:22:38,828 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:22:38,868 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:22:38,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 94 transitions, 198 flow [2023-09-01 05:22:38,941 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2023-09-01 05:22:38,942 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:38,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2023-09-01 05:22:38,946 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 94 transitions, 198 flow [2023-09-01 05:22:38,956 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 92 transitions, 190 flow [2023-09-01 05:22:38,960 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:22:38,969 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 92 transitions, 190 flow [2023-09-01 05:22:38,972 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 92 transitions, 190 flow [2023-09-01 05:22:38,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 190 flow [2023-09-01 05:22:39,002 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2023-09-01 05:22:39,003 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:39,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2023-09-01 05:22:39,005 INFO L119 LiptonReduction]: Number of co-enabled transitions 1452 [2023-09-01 05:22:42,178 INFO L134 LiptonReduction]: Checked pairs total: 4983 [2023-09-01 05:22:42,178 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-09-01 05:22:42,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:22:42,196 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;@66fbaa6c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:22:42,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-09-01 05:22:42,200 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-09-01 05:22:42,200 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:42,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:42,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:22:42,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:22:42,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:42,205 INFO L85 PathProgramCache]: Analyzing trace with hash -374031266, now seen corresponding path program 1 times [2023-09-01 05:22:42,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:42,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059782086] [2023-09-01 05:22:42,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:42,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:42,463 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 05:22:42,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:42,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059782086] [2023-09-01 05:22:42,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059782086] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:42,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:42,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:22:42,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932714874] [2023-09-01 05:22:42,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:42,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:22:42,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:42,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:22:42,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:22:42,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 174 [2023-09-01 05:22:42,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 05:22:42,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:42,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 174 [2023-09-01 05:22:42,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:42,696 INFO L130 PetriNetUnfolder]: 218/388 cut-off events. [2023-09-01 05:22:42,696 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-09-01 05:22:42,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 388 events. 218/388 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1429 event pairs, 135 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 779. Up to 240 conditions per place. [2023-09-01 05:22:42,703 INFO L137 encePairwiseOnDemand]: 167/174 looper letters, 31 selfloop transitions, 3 changer transitions 2/37 dead transitions. [2023-09-01 05:22:42,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 155 flow [2023-09-01 05:22:42,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:22:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:22:42,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-09-01 05:22:42,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5019157088122606 [2023-09-01 05:22:42,718 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-09-01 05:22:42,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-09-01 05:22:42,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:42,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-09-01 05:22:42,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 05:22:42,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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 05:22:42,727 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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 05:22:42,729 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 50 flow. Second operand 3 states and 262 transitions. [2023-09-01 05:22:42,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 155 flow [2023-09-01 05:22:42,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:22:42,732 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 65 flow [2023-09-01 05:22:42,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, 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=3, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-09-01 05:22:42,735 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-09-01 05:22:42,736 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 65 flow [2023-09-01 05:22:42,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 05:22:42,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:42,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:22:42,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:22:42,739 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:22:42,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:42,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1131253813, now seen corresponding path program 1 times [2023-09-01 05:22:42,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:42,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759932927] [2023-09-01 05:22:42,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:42,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:42,936 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 05:22:42,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:42,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759932927] [2023-09-01 05:22:42,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759932927] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:42,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:42,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:22:42,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450106749] [2023-09-01 05:22:42,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:42,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:22:42,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:42,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:22:42,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:22:42,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 174 [2023-09-01 05:22:42,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 05:22:42,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:42,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 174 [2023-09-01 05:22:42,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:43,064 INFO L130 PetriNetUnfolder]: 205/363 cut-off events. [2023-09-01 05:22:43,065 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-09-01 05:22:43,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 363 events. 205/363 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1333 event pairs, 135 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 821. Up to 240 conditions per place. [2023-09-01 05:22:43,067 INFO L137 encePairwiseOnDemand]: 169/174 looper letters, 29 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2023-09-01 05:22:43,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 33 transitions, 149 flow [2023-09-01 05:22:43,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:22:43,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:22:43,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2023-09-01 05:22:43,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47413793103448276 [2023-09-01 05:22:43,069 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 330 transitions. [2023-09-01 05:22:43,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 330 transitions. [2023-09-01 05:22:43,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:43,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 330 transitions. [2023-09-01 05:22:43,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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 05:22:43,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 05:22:43,072 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 05:22:43,072 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 65 flow. Second operand 4 states and 330 transitions. [2023-09-01 05:22:43,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 33 transitions, 149 flow [2023-09-01 05:22:43,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:22:43,074 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 60 flow [2023-09-01 05:22:43,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, 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=4, PETRI_FLOW=60, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2023-09-01 05:22:43,074 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-09-01 05:22:43,075 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 60 flow [2023-09-01 05:22:43,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 05:22:43,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:43,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:22:43,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:22:43,076 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:22:43,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:43,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1131253814, now seen corresponding path program 1 times [2023-09-01 05:22:43,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:43,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433241280] [2023-09-01 05:22:43,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:43,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:43,154 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 05:22:43,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:43,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433241280] [2023-09-01 05:22:43,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433241280] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:43,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:43,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:22:43,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665191641] [2023-09-01 05:22:43,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:43,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:22:43,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:43,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:22:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:22:43,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 174 [2023-09-01 05:22:43,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 05:22:43,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:43,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 174 [2023-09-01 05:22:43,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:43,251 INFO L130 PetriNetUnfolder]: 199/349 cut-off events. [2023-09-01 05:22:43,251 INFO L131 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2023-09-01 05:22:43,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 797 conditions, 349 events. 199/349 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1282 event pairs, 135 based on Foata normal form. 8/355 useless extension candidates. Maximal degree in co-relation 785. Up to 240 conditions per place. [2023-09-01 05:22:43,252 INFO L137 encePairwiseOnDemand]: 169/174 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2023-09-01 05:22:43,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 31 transitions, 140 flow [2023-09-01 05:22:43,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:22:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:22:43,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2023-09-01 05:22:43,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47126436781609193 [2023-09-01 05:22:43,254 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 328 transitions. [2023-09-01 05:22:43,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 328 transitions. [2023-09-01 05:22:43,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:43,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 328 transitions. [2023-09-01 05:22:43,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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 05:22:43,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 05:22:43,256 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 05:22:43,256 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 60 flow. Second operand 4 states and 328 transitions. [2023-09-01 05:22:43,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 31 transitions, 140 flow [2023-09-01 05:22:43,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 31 transitions, 133 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:22:43,257 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-09-01 05:22:43,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-09-01 05:22:43,258 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2023-09-01 05:22:43,258 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-09-01 05:22:43,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 05:22:43,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-09-01 05:22:43,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-09-01 05:22:43,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-09-01 05:22:43,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-09-01 05:22:43,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-09-01 05:22:43,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-09-01 05:22:43,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-09-01 05:22:43,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-09-01 05:22:43,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-09-01 05:22:43,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-09-01 05:22:43,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:22:43,268 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-09-01 05:22:43,272 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:22:43,273 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:22:43,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:22:43 BasicIcfg [2023-09-01 05:22:43,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:22:43,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:22:43,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:22:43,276 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:22:43,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:38" (3/4) ... [2023-09-01 05:22:43,278 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:22:43,281 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:22:43,281 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:22:43,285 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-09-01 05:22:43,285 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-09-01 05:22:43,288 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:22:43,288 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:22:43,319 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:22:43,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:22:43,323 INFO L158 Benchmark]: Toolchain (without parser) took 5811.70ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 55.8MB in the beginning and 58.1MB in the end (delta: -2.3MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2023-09-01 05:22:43,323 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:22:43,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.23ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 49.2MB in the end (delta: 6.4MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-09-01 05:22:43,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.92ms. Allocated memory is still 79.7MB. Free memory was 48.8MB in the beginning and 45.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:22:43,324 INFO L158 Benchmark]: Boogie Preprocessor took 26.86ms. Allocated memory is still 79.7MB. Free memory was 45.6MB in the beginning and 43.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:22:43,324 INFO L158 Benchmark]: RCFGBuilder took 725.71ms. Allocated memory is still 79.7MB. Free memory was 43.5MB in the beginning and 45.8MB in the end (delta: -2.3MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2023-09-01 05:22:43,324 INFO L158 Benchmark]: TraceAbstraction took 4465.98ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 45.1MB in the beginning and 61.2MB in the end (delta: -16.1MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. [2023-09-01 05:22:43,324 INFO L158 Benchmark]: Witness Printer took 46.38ms. Allocated memory is still 119.5MB. Free memory was 61.2MB in the beginning and 58.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:22:43,328 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 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.23ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 49.2MB in the end (delta: 6.4MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.92ms. Allocated memory is still 79.7MB. Free memory was 48.8MB in the beginning and 45.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.86ms. Allocated memory is still 79.7MB. Free memory was 45.6MB in the beginning and 43.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 725.71ms. Allocated memory is still 79.7MB. Free memory was 43.5MB in the beginning and 45.8MB in the end (delta: -2.3MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4465.98ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 45.1MB in the beginning and 61.2MB in the end (delta: -16.1MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. * Witness Printer took 46.38ms. Allocated memory is still 119.5MB. Free memory was 61.2MB in the beginning and 58.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 97 PlacesBefore, 29 PlacesAfterwards, 92 TransitionsBefore, 22 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 4983 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1932, independent: 1722, independent conditional: 0, independent unconditional: 1722, dependent: 210, dependent conditional: 0, dependent unconditional: 210, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 791, independent: 757, independent conditional: 0, independent unconditional: 757, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1932, independent: 965, independent conditional: 0, independent unconditional: 965, dependent: 176, dependent conditional: 0, dependent unconditional: 176, unknown: 791, unknown conditional: 0, unknown unconditional: 791] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: 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, 118 locations, 10 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: 4.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 4 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.3s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:22:43,340 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